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LT1201/LT1202 Dual and Quad 1mA, 12MHz, 50V/s Op Amps
FEATURES
s s s s s s s s s s s s
DESCRIPTIO
1mA Supply Current per Amplifier 50V/s Slew Rate 12MHz Gain-Bandwidth Unity-Gain Stable 330ns Settling Time to 0.1%, 10V Step 6V/mV DC Gain, RL = 2k 2mV Maximum Input Offset Voltage 100nA Maximum Input Offset Current 1A Maximum Input Bias Current 12V Minimum Output Swing into 2k Wide Supply Range: 2.5V to 15V Drives Capacitive Loads
The LT1201/LT1202 are dual and quad low power, high speed operational amplifiers with excellent DC performance. The LT1201/LT1202 feature much lower supply current than devices with comparable bandwidth and slew rate. Each amplifier is a single gain stage with outstanding settling characteristics. The fast settling time makes the circuit an ideal choice for data acquisition systems. Each output is capable of driving a 2k load to 12V with 15V supplies and a 500 load to 3V on 5V supplies. The amplifiers are also capable of driving large capacitive loads which make them useful in buffer or cable driver applications. The LT1201/LT1202 are members of a family of fast, high performance amplifiers that employ Linear Technology Corporation's advanced bipolar complementary processing.
APPLICATI
s s s s s s
S
Wideband Amplifiers Buffers Active Filters Video and RF Amplification Cable Drivers Data Acquisition Systems
TYPICAL APPLICATI
6.81k
100kHz, 4th Order Butterworth Filter
5.23k 100pF
VIN 330pF
+
1000pF
-
+
-
6.81k
11.3k
1/2 LT1201
5.23k
10.2k
47pF 1/2 LT1201 VOUT
12001/02 TA01
U
Inverter Pulse Response
1201/02 TA02
UO
UO
1
LT1201/LT1202 ABSOLUTE AXI U RATI GS
Specified Temperature Range (Note 5) LT1201C/LT1202C ............................... 0C to 70C Maximum Junction Temperature Plastic Package ............................................. 150C Storage Temperature Range ................ - 65C to 150C Lead Temperature (Soldering, 10 sec)................. 300C Total Supply Voltage (V + to V -) .............................. 36V Differential Input Voltage ........................................ 6V Input Voltage .......................................................... VS Output Short-Circuit Duration (Note 1) ........... Indefinite Operating Temperature Range LT1201C/LT1202C .......................... - 40C to 85C
PACKAGE/ORDER I FOR ATIO
TOP VIEW OUT A 1 -IN A 2 +IN A 3 V- 4 B A 8 7 6 5 V+ OUT B -IN B +IN B
ORDER PART NUMBER LT1201CN8
N8 PACKAGE 8-LEAD PLASTIC DIP
TJMAX = 150C, JA = 100C/W
TOP VIEW OUT A 1 -IN A 2 +IN A 3 V+ 4 +IN B 5 -IN B 6 OUT B 7 B C A D 14 OUT D 13 -IN D 12 +IN D 11 V - 10 +IN C 9 8 -IN C OUT C
ORDER PART NUMBER LT1202CN
N PACKAGE 14-LEAD PLASTIC DIP
TJMAX = 150C, JA = 70C/W
ELECTRICAL CHARACTERISTICS
SYMBOL VOS PARAMETER Input Offset Voltage
VS = 15V, TA = 25C, VCM = 0V, unless otherwise noted.
MIN TYP 0.7 1.0 11 50 0.5 30 0.6 MAX 2.0 3.0 4.0 4.5 100 150 1.0 1.2 UNITS mV mV mV mV V/C nA nA A A nV/Hz pA/Hz
CONDITIONS VS = 15V (Note 2) 0C to 70C VS = 5V (Note 2) 0C to 70C VS = 5V and VS = 15V 0C to 70C VS = 5V and VS = 15V 0C to 70C f = 10kHz f = 10kHz
IOS IB en in
Input VOS Drift Input Offset Current Input Bias Current Input Noise Voltage Input Noise Current
2
U
U
W
WW
U
W
TOP VIEW OUT A 1 -IN A 2 +IN A 3 V- 4 B 5 +IN B A 6 8 7 V+ OUT B -IN B
ORDER PART NUMBER LT1201CS8 S8 PART MARKING 1201 ORDER PART NUMBER LT1202CS
S8 PACKAGE 8-LEAD PLASTIC SOIC
TJMAX = 150C, JA = 150C/W
TOP VIEW OUT A 1 -IN A 2 +IN A 3 V+ 4 +IN B 5 -IN B 6 OUT B 7 NC 8 B C A D 16 OUT D 15 -IN D 14 +IN D 13 V - 12 +IN C 11 -IN C 10 OUT C 9 NC
S PACKAGE 16-LEAD PLASTIC SOIC
TJMAX = 150C, JA = 100C/W
LT1201/LT1202
ELECTRICAL CHARACTERISTICS
SYMBOL RIN CIN CMRR PSRR PARAMETER Input Resistance Input Capacitance Common-Mode Rejection Ratio Power Supply Rejection Ratio Input Voltage Range+ Input Voltage Range- AVOL Large-Signal Voltage Gain CONDITIONS VCM = 12V Differential
VS = 15V, TA = 25C, VCM = 0V, unless otherwise noted.
MIN 48 TYP 90 500 2 100 90 14 4 - 13 -3 8 6 5 4 13.8 4.0 12 12 50 33 0.8 1.7 12 9 18 23 25 20 18 23 330 300 1.1 -110 1 MAX UNITS M k pF dB dB dB dB V V V V V/mV V/mV V/mV V/mV V/mV V/mV V/mV V/mV V V mA mA V/s V/s V/s V/s MHz MHz MHz MHz ns ns % % ns ns ns ns dB mA mA
VOUT IOUT SR
Output Swing Output Current Slew Rate
Full Power Bandwidth GBW tr, tf Gain-Bandwidth Rise Time, Fall Time Overshoot Propagation Delay ts RO IS Settling Time Output Resistance Crosstalk Supply Current
VS = 15V, VCM = 12V; VS = 5V, VCM = 2.5V 0C to 70C VS = 5V to 15V 0C to 70C VS = 15V VS = 5V VS = 15V VS = 5V VS = 15V, VOUT = 10V, RL = 5k 0C to 70C VS = 15V, VOUT = 10V, RL = 2k 0C to 70C VS = 5V, VOUT = 2.5V, RL = 2k 0C to 70C VS = 5V, VOUT = 2.5V, RL = 1k 0C to 70C VS = 15V, RL = 2k, 0C to 70C VS = 5V, RL = 500, 0C to 70C VS = 15V, VOUT = 12V, 0C to 70C VS = 5V, VOUT = 3V, 0C to 70C VS = 15V, AVCL = - 2 (Note 3) 0C to 70C VS = 5V, AVCL = - 2 (Note 3) 0C to 70C VS = 15V, 10V Peak (Note 4) VS = 5V, 3V Peak (Note 4) VS = 15V, f = 0.1MHz VS = 5V, f = 0.1MHz VS = 15V, AVCL = 1, 10% to 90%, 0.1V VS = 5V, AVCL = 1, 10% to 90%, 0.1V VS = 15V, AVCL = 1, 0.1V VS = 5V, AVCL = 1, 0.1V VS = 15V, 50% VIN to 50%VOUT VS = 5V, 50% VIN to 50%VOUT VS = 15V, 10V Step, 0.1%, AVCL = 1 VS = 5V, 5V Step, 0.1%, AVCL = 1 AVCL = 1, f = 0.1MHz VOUT = 10V, RL = 2k Each Amplifier, VS = 5V and VS = 15V 0C to 70C
92 90 80 80 12.0 2.5
- 12.0 - 2.5
4.0 3.5 3.0 2.5 2.5 2.0 2.0 1.6 12.0 3.0 6 6 30 27 20 18
- 100 1.4 1.6
Note 1: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely. Note 2: Input offset voltage is pulse tested with automated test equipment and is exclusive of warm-up drift. Note 3: Slew rate is measured in a gain of -2. For 15V supplies measure between 10V on the output with 6V on the input. For 5V supplies measure between 2V on the output with 1.75V on the input.
Note 4: Full power bandwidth is calculated from the slew rate measurement: FPBW = SR/2VP. Note 5: Commercial grade parts are designed to operate over the temperature range of -40C to 85C but are neither tested nor guaranteed beyond 0C to 70C. Industrial grade parts specified and tested over -40C to 85C are available on special request. Consult factory.
3
LT1201/LT1202
TYPICAL PERFOR A CE CHARACTERISTICS
Input Common-Mode Range vs Supply Voltage
20
MAGNITUDE OF INPUT VOLTAGE (V)
OUTPUT VOLTAGE SWING (V)
TA = 25C VOS < 1mV
SUPPLY CURRENT (mA)
15
10
+VCM
-VCM
5
0 0 5 10 15 SUPPLY VOLTAGE (V) 20
LT1201/02 G01
Output Voltage Swing vs Resistive Load
30
OUTPUT VOLTAGE SWING (VP-P)
25
INPUT BIAS CURRENT (nA)
20 VS = 15V 15 10 5 0 100 VS = 5V
OPEN-LOOP GAIN (dB)
TA = 25C VOS = 30mV 1k 10k LOAD RESISTANCE () 100k
LT1201/02 G04
Input Bias Current vs Temperature
560
OUTPUT SHORT-CIRCUIT CURRENT (mA)
INPUT BIAS CURRENT (nA)
2
520 500 480 460 440 -50 -25
25 SOURCE 20 SINK 15 10 5 -50 -25
INPUT VOLTAGE NOISE (nV/Hz)
540
VS = 15V I + + IB- IB = B
25 75 0 50 TEMPERATURE (C)
4
UW
100 125
LT1201/02 G07
Supply Current vs Supply Voltage
1.6 EACH AMPLIFIER 1.4 1.2 1.0 0.8 0.6 0.4 25C 125C 15 20
Output Voltage Swing vs Supply Voltage
TA = 25C RL = 2k VOS = 30mV +VSW 10 -VSW 5
-55C
0 0 5 10 15 SUPPLY VOLTAGE (V) 20
1201/02 G02
0
5 10 15 SUPPLY VOLTAGE (V)
20
LT1201/02 G03
Input Bias Current vs Input Common-Mode Voltage
1000 TA = 25C VS = 15V IB+ + IB- IB = 2
90
Open-Loop Gain vs Resistive Load
TA = 25C 80 VS = 15V 70 VS = 5V
750
500
60
250
50
0 -15
-10 -5 0 5 10 INPUT COMMON-MODE VOLTAGE (V)
15
40 100
1k 10k LOAD RESISTANCE ()
100k
LT1201/02 G06
LT1201/02 G05
Output Short-Circuit Current vs Temperature
35 VS = 5V 30
1000
Input Noise Spectral Density
10 TA = 25C VS = 15V AV = 101 RS = 100k
INPUT CURRENT NOISE (pA/Hz)
100 in en
1
25 75 50 0 TEMPERATURE (C)
100
125
10 10 100 1k 10k FREQUENCY (Hz)
0.1 100k
1201/02 G09
LT1201/02 G08
LT1201/LT1202
TYPICAL PERFOR A CE CHARACTERISTICS
Crosstalk vs Frequency
-40 -50 -60
COMMON-MODE REJECTION RATIO (dB)
POWER SUPPLY REJECTION RATIO (dB)
CROSSTALK (dB)
TA = 25C VIN = 0dBm VS = 15V AV = 1 RL = 2k
-70 -80 -90
-100 -110 -120 10k 100k 1M FREQUENCY (Hz) 10M
1201/02 G10
Voltage Gain and Phase vs Frequency
80 VS = 15V 60
VOLTAGE GAIN (dB)
VOLTAGE MAGNITUDE (dB)
VS = 5V VS = 15V VS = 5V
OUTPUT SWING (V)
40
20
0 TA = 25C -20 100 1k 1M 10k 100k FREQUENCY (Hz) 10M
Closed-Loop Output Impedance vs Frequency
1000 TA = 25C VS = 15V AV = +1 100
11.3
OUTPUT IMPEDANCE ()
GAIN-BANDWIDTH (MHz)
SLEW RATE (V/s)
10
1
0.1 10k
100k
1M 10M FREQUENCY (Hz)
UW
LT1201/02 G13 LT1201/02 G16
Power Supply Rejection Ratio vs Frequency
100 TA = 25C VS = 15V 80 +PSRR 60 -PSRR 40 120 100 80 60 40 20
Common-Mode Rejection Ratio vs Frequency
TA = 25C VS = 15V
20
0 100
1k
1M 10k 100k FREQUENCY (Hz)
10M
100M
0 100
1k
10k 100k 1M FREQUENCY (Hz)
10M
100M
LT1201/02 G11
LT1201/02 G12
Output Swing vs Settling Time
100 10 8 80
PHASE MARGIN (DEG)
Frequency Response vs Capacitive Load
10 8 6 4 2 0 -2 -4 -6 -8 C = 1000pF C=0 C = 500pF C = 100pF C = 50pF TA = 25C VS = 15V AV = -1
6 4 2 0 -2 -4 -6 -8 AV = +1 AV = +1 AV = -1
TA = 25C VS = 15V 10mV SETTLING
60
40
20
AV = -1
0 100M
-10 0 100 200 300 400 SETTLING TIME (ns) 500 600
-10 100k
1M 10M FREQUENCY (Hz)
100M
LT1201/02 G15
LT1201/02 G14
Gain-Bandwidth vs Temperature
90
VS = 15V 11.2 11.1 11.0 10.9 10.8 10.7 -50
Slew Rate vs Temperature
VS = 15V AV = -1
80 70
-SR 60 +SR 50 40 30 -50
100M
-25
25 75 0 50 TEMPERATURE (C)
100
125
-25
25 75 0 50 TEMPERATURE (C)
100
125
LT1201/02 G17
LT1201/02 G18
5
LT1201/LT1202
TYPICAL PERFOR A CE CHARACTERISTICS
Gain-Bandwidth and Phase Margin vs Supply Voltage
14 TA = 25C 12
GAIN-BANDWIDTH (MHz)
58 GBW
PHASE MARGIN (DEG)
70
SLEW RATE (V/s)
10 8 6 4 2 0 0 5
56 54
-SR 60 50 40 30 20 +SR
TOTAL HARMONIC DISTORTION (%)
PHASE MARGIN
15 SUPPLY VOLTAGE (V)
10
APPLICATI
S I FOR ATIO
Layout and Passive Components As with any high speed operational amplifier, care must be taken in board layout in order to obtain maximum performance. Key layout issues include: use of a ground plane, minimization of stray capacitance at the input pins, short lead lengths, RF-quality bypass capacitors located close to the device (typically 0.01F to 0.1F) and low ESR bypass capacitors for high drive current applications (typically 1F to 10F tantalum). Sockets should be avoided when maximum frequency performance is required, although low profile sockets can provide reasonable performance up to 50MHz. For more details see Design Note 50. The parallel combination of the feedback resistor and gain setting resistor on the inverting input combine with the input capacitance to form a pole which can cause peaking. If feedback resistors greater than 5k are used, a parallel capacitor of value: CF RG x CIN /RF should be used to cancel the input pole and optimize dynamic performance. For unity-gain applications where a large feedback resistor is used, CF should be greater than or equal to CIN.
6
U
W
UW
60 52 50 48 46 20
1201/02 G19
Slew Rate vs Supply Voltage
80 TA = 25C AV = -1
0.1
Total Harmonic Distortion vs Frequency
TA = 25C VOUT = 3VRMS RL = 2k 0.01
AV = -1 0.001 AV = 1
0
5 10 15 SUPPLY VOLTAGE (V)
20
1201/02 G20
0.0001 10
100
1k 10k FREQUENCY (Hz)
100k
1201/02 G21
U
UO
Capacitive Loading The LT1201/LT1202 amplifiers are stable with all capacitive loads. This is accomplished by sensing the load induced output pole and adding compensation at the amplifier gain node. As the capacitive load increases, both the bandwidth and phase margin decrease so there will be peaking in the frequency domain and in the transient response. The photo of the small-signal response with 1000pF load shows 40% peaking. The large-signal response with a 10,000pF load shows the output slew rate being limited by the short-circuit current. To reduce peaking with capacitive loads, insert a small decoupling resistor between the output and the load, and add a capacitor between the output and inverting input to provide an AC feedback path. Coaxial cable can be driven directly, but for best pulse fidelity the cable should be doubly terminated with a resistor in series with the output. When driving a 150 load the minimum output current of 6mA limits the swing to 0.9V.
LT1201/LT1202
APPLICATI
S I FOR ATIO
Small-Signal Capacitive Loading
AV = -1 CL = 1000pF
1201/02 AI01
Large-Signal Capacitive Loading Small-Signal Transient Response
AV = 1 CL = 10,000pF
1201/02 AI02
Input Considerations Resistors in series with the inputs are recommended for the LT1201/LT1202 in applications where the differential input voltage exceeds 6V continuously or on a transient basis. An example would be in noninverting configurations with high input slew rates or when driving heavy capacitive loads. The use of balanced source resistance at each input is recommended for applications where DC accuracy must be maximized. Transient Response The LT1201/LT1202 gain-bandwidth is 12MHz when measured at 100kHz. The actual frequency response in unitygain is considerably higher than 12MHz due to peaking
U
caused by a second pole beyond the unity-gain crossover. This is reflected in the 50 phase margin and shows up as overshoot in the unity-gain small-signal transient response. Higher noise gain configurations exhibit less overshoot as seen in the inverting gain of one response. The large-signal response in both inverting and noninverting gain shows symmetrical slewing characteristics. Normally the noninverting response has a much faster rising edge due to the rapid change in input common-mode voltage which affects the tail current of the input differential pair. Slew enhancement circuitry has been added to the LT1201/LT1202 so that the falling edge slew rate is balanced.
AV = 1
1201/02 AI03
W
U
UO
Small-Signal Transient Response
AV = -1
1201/02 AI04
7
LT1201/LT1202
APPLICATI
S I FOR ATIO
Large-Signal Transient Response
AV = 1
1201/02 AI05
Large-Signal Transient Response
AV = -1
1201/02 AI06
Low Voltage Operation The LT1201/LT1202 are functional at room temperature with only 3V of total supply voltage. Under this condition, however, the undistorted output swing is only 0.8VP-P . A more realistic condition is operation at 2.5V supplies (or 5V and ground). Under these conditions at room temperature the typical input common-mode range is 2.2V to -1.5V, and a 1MHz, 2.5VP-P sine wave can be accurately reproduced. With 5V total supply voltage the gain-bandwidth is reduced to 7MHz and the slew rate is reduced to 20V/s.
8
U
DAC Current-to-Voltage Converter The wide bandwidth, high slew rate and fast settling time of the LT1201/LT1202 make them well suited for currentto-voltage conversion after current output D/A converters. A typical application with a DAC-08 type converter (fullscale output of 2mA) uses a 5k feedback resistor. A 12pF compensation capacitor across the feedback resistor is used to null the pole at the inverting input caused by the DAC output capacitance. The combination of the LT1201/ LT1202 and DAC settles to less than 40mV (1LSB) in 500ns for a 0V to 10V step or for a 10V to 0V step. Active Filters The LT1201/LT1202 are well suited to active filter applications such as the circuit shown on the front page of the data sheet. This particular example is a 4-pole Butterworth lowpass filter with a cutoff frequency of 100kHz. In choosing an amplifier for filter applications a good rule of thumb is: fO x Q < GBW/20 For our example the first section has Q = 0.54 and the second section has Q = 1.31, so the amplifier easily meets the gain-bandwidth requirement of 2.6MHz for fO = 100kHz. This multiple feedback configuration and the Sallen-Key configuration (as shown in the Typical Applications section) are the most commonly used topologies. The multiple feedback configuration has an advantage over the noninverting Sallen-Key configuration in many cases because the amplifier does not see a frequency varying common-mode voltage and high frequency output impedance is not critical. The result is better frequency performance beyond fO (for our particular example the stopband performance is dramatically better above 1MHz). Advantages of the Sallen-Key topology over the multiple feedback topology include: better gain accuracy, better DC accuracy, and unity-gain filters can be implemented more easily.
W
U
UO
LT1201/LT1202
TYPICAL APPLICATI
DAC Current-to-Voltage Converter
12pF
5k
DAC-08 TYPE
-
1/2 LT1201 VOUT
+
0.1F 5k 1 LSB SETTLING = 500ns
1201/02 TA03
VIN R1 2.87k R2 26.7k
VIN
UO
3.9k
S
Instrumentation Amplifier
R5 432 R1 20k R2 2k R4 20k
-
1/2 LT1201
R3 2k
-
1/2 LT1201 VOUT
-
VIN AV =
+
+
+ ( R2 + R3 ) + R2R5R3 R1 R4 = 104
+
R4 1+ 1 R3 2
TRIM R5 FOR GAIN TRIM R1 FOR COMMON-MODE REJECTION BW = 120kHz
1201/02 TA05
100kHz 4th Order Butterworth Filter (Sallen-Key)
C4 1000pF
C2 330pF
- -
1/2 LT1201 1/2 LT1201 VOUT
+
R3 2.43k R4 15.4k C3 68pF
1201/02 TA04
+
C1 100pF
Full-Wave Rectifier
1N4148
-
1/2 LT1201
+
3.9k 7.8k
7.8k 1N4148 3.9k
-
1/2 LT1201 VOUT
+
1201/02 TA06
9
LT1201/LT1202
SI PLIFIED SCHE ATIC
V+
+IN
V-
1201/02 SS
PACKAGE DESCRIPTIO
0.300 - 0.320 (7.620 - 8.128)
0.009 - 0.015 (0.229 - 0.381)
0.065 (1.651) TYP 0.125 (3.175) MIN 0.020 (0.508) MIN
(
+0.025 0.325 -0.015 +0.635 8.255 -0.381
)
0.045 0.015 (1.143 0.381) 0.100 0.010 (2.540 0.254)
0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254) 0.016 - 0.050 0.406 - 1.270
0.053 - 0.069 (1.346 - 1.752) 0- 8 TYP 0.004 - 0.010 (0.101 - 0.254) 0.228 - 0.244 (5.791 - 6.197)
0.014 - 0.019 (0.355 - 0.483)
10
U
W
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One amplifier shown.
BIAS 1
-IN
BIAS 2 OUT
Dimensions in inches (millimeters) unless otherwise noted. N8 Package 8-Lead Plastic DIP
0.045 - 0.065 (1.143 - 1.651)
0.130 0.005 (3.302 0.127)
0.400 (10.160) MAX 8 7 6 5
0.250 0.010 (6.350 0.254)
1
2
3
4
0.018 0.003 (0.457 0.076)
N8 0392
S8 Package 8-Lead Plastic SOIC
8
0.189 - 0.197 (4.801 - 5.004) 7 6 5
0.050 (1.270) BSC
0.150 - 0.157 (3.810 - 3.988)
1
2
3
4
SO8 0493
LT1201/LT1202
PACKAGE DESCRIPTIO U
Dimensions in inches (millimeters) unless otherwise noted. N Package 14-Lead Plastic DIP
0.770 (19.558) MAX 14 13 12 11 10 9 8
0.260 0.010 (6.604 0.254)
1
2
3
4
5
6
7
0.300 - 0.325 (7.620 - 8.255)
0.130 0.005 (3.302 0.127) 0.015 (0.380) MIN
0.045 - 0.065 (1.143 - 1.651)
0.009 - 0.015 (0.229 - 0.381) +0.025 0.325 -0.015 8.255 +0.635 -0.381
0.065 (1.651) TYP 0.125 (3.175) MIN 0.075 0.015 (1.905 0.381) 0.100 0.010 (2.540 0.254) 0.018 0.003 (0.457 0.076)
(
)
N14 0392
S Package 16-Lead Plastic SOIC
0.386 - 0.394* (9.804 - 10.008) 16 15 14 13 12 11 10 9
0.228 - 0.244 (5.791 - 6.197)
0.150 - 0.157* (3.810 - 3.988)
1 0.010 - 0.020 x 45 (0.254 - 0.508) 0.008 - 0.010 (0.203 - 0.254) 0 - 8 TYP 0.053 - 0.069 (1.346 - 1.752)
2
3
4
5
6
7
8
0.004 - 0.010 (0.101 - 0.254)
0.016 - 0.050 0.406 - 1.270
0.014 - 0.019 (0.355 - 0.483)
0.050 (1.270) TYP
SO16 0392
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LT1201/LT1202
U.S. Area Sales Offices
NORTHEAST REGION Linear Technology Corporation One Oxford Valley 2300 E. Lincoln Hwy.,Suite 306 Langhorne, PA 19047 Phone: (215) 757-8578 FAX: (215) 757-5631 SOUTHEAST REGION Linear Technology Corporation 17060 Dallas Parkway Suite 208 Dallas, TX 75248 Phone: (214) 733-3071 FAX: (214) 380-5138 CENTRAL REGION Linear Technology Corporation Chesapeake Square 229 Mitchell Court, Suite A-25 Addison, IL 60101 Phone: (708) 620-6910 FAX: (708) 620-6977 SOUTHWEST REGION Linear Technology Corporation 22141 Ventura Blvd. Suite 206 Woodland Hills, CA 91364 Phone: (818) 703-0835 FAX: (818) 703-0517 NORTHWEST REGION Linear Technology Corporation 782 Sycamore Dr. Milpitas, CA 95035 Phone: (408) 428-2050 FAX: (408) 432-6331
Linear Technology Corporation 266 Lowell St., Suite B-8 Wilmington, MA 01887 Phone: (508) 658-3881 FAX: (508) 658-2701
International Sales Offices
FRANCE Linear Technology S.A.R.L. Immeuble "Le Quartz" 58 Chemin de la Justice 92290 Chatenay Malabry France Phone: 33-1-41079555 FAX: 33-1-46314613 GERMANY Linear Techonolgy GMBH Untere Hauptstr. 9 D-8057 Eching Germany Phone: 49-89-3197410 FAX: 49-89-3194821 JAPAN Linear Technology KK 5F YZ Bldg. Iidabashi, Chiyoda-Ku Tokyo, 102 Japan Phone: 81-3-3237-7891 FAX: 81-3-3237-8010 KOREA Linear Technology Korea Branch Namsong Building, #505 Itaewon-Dong 260-199 Yongsan-Ku, Seoul Korea Phone: 82-2-792-1617 FAX: 82-2-792-1619 SINGAPORE Linear Technology Pte. Ltd. 101 Boon Keng Road #02-15 Kallang Ind. Estates Singapore 1233 Phone: 65-293-5322 FAX: 65-292-0398 TAIWAN Linear Technology Corporation Rm. 801, No. 46, Sec. 2 Chung Shan N. Rd. Taipei, Taiwan, R.O.C. Phone: 886-2-521-7575 FAX: 886-2-562-2285 UNITED KINGDOM Linear Technology (UK) Ltd. The Coliseum, Riverside Way Camberley, Surrey GU15 3YL United Kingdom Phone: 44-276-677676 FAX: 44-276-64851
World Headquarters
Linear Technology Corporation 1630 McCarthy Blvd. Milpitas, CA 95035-7487 Phone: (408) 432-1900 FAX: (408) 434-0507
04/15/93
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
(408) 432-1900 q FAX: (408) 434-0507 q TELEX: 499-3977
LT/GP 0893 10K REV 0 * PRINTED IN USA
(c) LINEAR TECHNOLOGY CORPORATION 1993

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