View HDAS-524_4399606.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

HDAS-524, HDAS-528
12-Bit, 400kHz, Complete Data Acquisition System
FEATURES
12-Bit resolution, 400kHz throughput 8 Channels single-ended or 4 channels differential Miniature, 40-pin, ceramic DDIP Full scale input range from 100mV to 10V Three-state outputs No missing codes
PIN
INPUT/OUTPUT CONNECTIONS
FUNCTION CH0/CH0 HI CH1/CH1 HI CH2/CH2 HI CH3/CH3 HI CH7/CH3 LO CH6/CH2 LO CH5/CH1 LO CH4/CH0 LO COMP BIN RGAIN LO RGAIN HI S/H OUT +10V REFERENCE OUT SIGNAL GROUND GAIN ADJUST OFFSET ADJUST BIPOLAR -15V SUPPLY ANALOG GROUND +15V SUPPLY
GAIN ADJUST
PIN 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
FUNCTION START CONVERT CA2 CA1 CA0 +5V SUPPLY DIGITAL GROUND ENABLE BIT 1 (MSB) BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 BIT 9 BIT 10 BIT 11 BIT 12 (LSB) EOC
GENERAL DESCRIPTION The HDAS-524 and HDAS-528 are complete data acquisition systems. Each contains an internal multiplexer, instrumentation amplifier, sample-hold, analog-to-digital converter and three-state outputs. Packaged in miniature, 40-pin, double-dip packages, the HDAS-524/528 have a low power dissipation of 2.6 Watts. The HDAS-524 provides 4 differential inputs, and the HDAS-528 provides 8 single-ended inputs. An internal instrumenta- tion amplifier is characterized for gains of 1, 2, 4, 8, 10 and 100. The gain range is selectable through a single external resistor. HDAS-524/528 OPERATION The HDAS devices accept either 8 single-ended or 4 differential input signals. Tie unused channels to SIGNAL GROUND, pin 14. Channel selection is accomplished using the multiplexer address pins as shown in Table 1. Obtain additional channels by connecting external multiplexers. The acquisition time is the amount of time the multiplexer, instrumentation amplifier and sample-hold require to settle within a specified range of accuracy. The acquisition time can be measured by how long EOC is low before the rising edge of the START CONVERT pulse for continuous operation. Higher
Continued on page 3
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
RGAIN LO
RGAIN HI
BIPOLAR
17
S/H OUT
11
10
12 15
OFFSET ADJUST
16
CH0/CH0 HI 1 CH1/CH1 HI 2 CH2/CH2 HI 3 CH3/CH3 HI 4 CH4/CH0 LO 8 CH5/CH1 LO 7 CH6/CH2 LO 6 CH7/CH3 LO 5 2 x 4:1 HDAS-524 MUX 8:1 HDAS-528 (524) (528) I/A S/H 12-BIT A/D 3 STATE OUTPUT
33 BIT 1 (MSB) 32 BIT 2 31 BIT 3 30 BIT 4 29 BIT 5 28 BIT 6 27 BIT 7 26 BIT 8 25 BIT 9 24 BIT 10 23 BIT 11 22 BIT 12 (LSB)
SIGNAL GROUND 14
39
38
37
19
35
36
20
18
13
40
21
9
34
+15V SUPPLY
+5V SUPPLY
15V SUPPLY
START CONVERT
COMP BIN
ANA GND
DIG GND
REF. OUT
Typical topology is shown. Figure 1. Functional Block Diagram
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HDAS-524/528.B01 Page 1 of 5
ENABLE
CA1
CA0
EOC
CA2
HDAS-524, HDAS-528
ABSOLUTE MAXIMUM RATINGS
PARAMETERS MIN. TYP. MAX. UNITS PERFORMANCE MIN.
+15V Supply, Pin 20 -15V Supply, Pin 18 +5V Supply, Pin 36 Digital Inputs, Pins 9, 34, 37-40 Analog Inputs, Pins 1-8 Lead Temperature (10 seconds)
0 0 -0.5 -0.3 -15 --
-- -- -- -- -- --
+18 -18 +7 +VDD +0.3 +15 300
Volts Volts Volts Volts Volts C
FUNCTIONAL SPECIFICATIONS
(Apply over the operating temperature range with 15V and +5V supplies unless otherwise specified.)
ANALOG INPUTS MIN. TYP. MAX. UNITS
Number of Inputs HDAS-524 HDAS-528 Input Voltage Ranges Gain = 1 Gain = 100 I.A. Gain Ranges Input Impedance CH On, CH Off Input Capacitance (-524) CH On, CH Off (-528) CH On, CH Off Input Bias Current Input Offset Current Input Offset Voltage Common Mode Voltage Range CMRR, G = 1, @10Hz, Vcm = 1Vp-p Voltage Noise (RMS) Gain = 1 Gain = 8 MUX Crosstalk @125kHz MUX ON Resistance Bias Current Tempco Offset Current Tempco Offset Voltage Tempco Input Gain Equation
DIGITAL INPUTS
4 differential inputs 8 single-ended inputs 0 to +10V, 10V 0 to +100mV, 100mV 1, 2, 4, 8, 10, 100 1011 -- -- -- -- -- 11 72 1012 -- -- -- -- -- -- 80 -- 12 25 200 50 10 -- -- Ohms pF pF pA pA mV Volts dB
Resolution Integral Nonlinearity, +25C 0 to +70C -55 to +125C Differential Nonlinearity, +25C 0 to +70C -55 to +125C F.S. Abs. Accuracy, +25C 0 to +70C -55 to +125C Unipolar Zero Error, +25C Unipolar Zero Tempco Bipolar Zero Error, +25C Bipolar Zero Tempco Bipolar Offset Error, +25C Bipolar Offset Tempco Gain Error, +25C Gain Tempco Harmonic Distortion (-FS) (DC to 5kHz, 10Vp-p) No Missing Codes
SIGNAL TIMING
12-Bit, 400kHz, Complete TYP. MAX. UNITS Acquisition System 12 Data -- -- Bits
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.13 0.15 0.25 0.074 15 0.074 5 0.1 20 0.1 20 0.75 0.75 1.5 0.75 0.75 1 0.3 0.5 0.78 0.15 30 0.15 10 0.25 40 0.25 40 LSB LSB LSB LSB LSB LSB %FSR %FSR %FSR %FSR ppm/C %FSR ppm/C %FSR ppm/C % ppm/C
-73 -65 dB Over operating temperature range -- -- 100 -- -- -- -- -- -- -- -- -- -- 10 -- -- 20 800 850 880 -- -- -- -- -- -- ns ns ns ns ns ns ns kHz kHz kHz kHz kHz kHz
-- -- 200 V -- -- 50 V -72 -- -- dB -- 450 500 Ohms Doubles (max.) every 10C above +70C Doubles (max.) every 10C above +70C (30ppm/C x gain) 20ppm/C (max.) 2k GAIN = +1 RGAIN
Enable to Data Valid Delay MUX Address Set-up Time Start Convert Pulse Width Data Valid After EOC Signal Goes Low Conversion Time, +25C 0 to +70C -55 to +125C Throughput Rates Gain = 1 Gain = 2 Gain = 4 Gain = 8 Gain = 10 Gain = 100
S/H PERFORMANCE
-- 400 50 -- -- -- -- 400 325 275 225 175 40
Logic Levels Logic 1 Logic 0 Logic Loading Logic 1 Logic 0
OUTPUTS
+2.0 -- -- --
-- -- -- --
-- +0.5 +5 -600
Volts Volts A A
Acquisition Time Full-Scale Step to 0.01% Full-Scale Step to 0.1% Aperture Delay Aperture Uncertainty Slew Rate Hold Mode Settling Time To 1mV To 10mV Feedthrough Rejection Droop Rate
POWER SUPPLIES
-- -- -50 -- 70 -- -- 80 -- +14.25 -14.25 +4.75 -- -- -- -- -- 0 -55 -65
500 400 -20 -- 90 100 75 88 0.1 +15.0 -15.0 +5.0 +78 -72 +75 2.6 --
900 750 0 150 -- 200 150 -- 100 +15.75 -15.75 +5.25 +90 -82 +95 3 0.05
ns ns ns ps V/s ns ns dB V/s Volts Volts Volts mA mA mA Watts %FSR/%V C C C
Logic Levels Logic 1 Logic 0 Logic Loading Logic 1 Logic 0 Internal Reference Voltage, +25C Drift External Current Output Coding Footnotes:
+2.4 -- -- -- +9.9 -- --
-- -- -- --
-- +0.4 -160 +6.4
Volts Volts A mA
+10.0 +10.1 Volts 5 35 ppm/C -- 1.5 mA Straight binary/Offset binary Comp. binary/Comp. offset binary
Range, +15V Supply -15V Supply +5V Supply Current, +15V Supply -15V Supply +5V Supply Power Dissipation Power Supply Rejection
PHYSICAL/ENVIRONMENTAL
Specifications valid at +25C and over the temperature ranges of 0 to +70C or -55 to +125C.
Oper. Temp. Range, Case, -MC, -MM, 883 Storage Temp. Range Package Type Weight
-- +70 -- +125 -- +150 40-pin ceramic DDIP 0.56 ounces (16 grams)
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HDAS-524/528.B01 Page 2 of 5
HDAS-524, HDAS-528
gains require the use of the RGAIN resistor to increase the acquisition time. The gain is equal to 1 without an RGAIN resistor. Table 2 refers to the appropriate RGAIN resistors for various throughputs. The HDAS devices enter the hold mode and are ready for conversion upon the start convert going high. The conversion is complete within a maximum of 800ns (+25C). EOC returns low, the data is valid and sent to the three-state output buffers. The sample/hold is now ready to acquire new data. CALIBRATION PROCEDURE 1. Connect the converter per Figure 2 and Tables 2 and 3 for the appropriate input range. Apply a pulse of 100 nano-seconds (typical) to the START CONVERT input (pin 40) at a rate of 100kHz. This rate is chosen to reduce flicker if LED's are used on the outputs for calibration purposes. 2. Zero Adjustments Apply a precision voltage reference source between the analog input and SIGNAL GROUND (pin 14). Adjust the output of the reference source per Table 3. For unipolar, adjust the zero trimming potentiometer so that the output code flickers equally between 0000 0000 0000 and 0000 0000 0001 with the COMP BIN (pin 9) tied high (straight binary) or between 1111 1111 1111 and 1111 1111 1110 with the COMP BIN (pin 9) tied low (complementary binary). For bipolar operation, adjust the potentiometer such that the code flickers equally between 1000 0000 0000 and 1000 0000 0001 with COMP BIN (pin 9) tied high (offset binary) or between 0111 1111 1111 and 0111 1111 1110 with COMP BIN (pin 9) tied low (complementary offset binary). 3. Full-Scale Adjustment Set the output of the voltage reference used in step 2 to the value shown in Table 3. Adjust the gain trimming potentiometer so that the output code flickers equally between 1111 1111 1110 and 1111 1111 1111 or 0000 0000 0001 and 0000 0000 0000 for complementary coding. 4. To confirm proper operation of the device, vary the precision reference voltage source to obtain the output coding listed in Table 4.
36 + 4.7F DGND 0.1F 35 10 R GAIN 11 +10V REF 4.7F 15V 20k 15V 20k +15V 15V 18 4.7F 4.7F +15V + + 0.1F 19 0.1F 20 +15V 16 OFFSET ADJUST 15 GAIN ADJUST 13 + 0.1F 19 RGAIN HI R GAIN LO
12-Bit, 400kHz, Complete Data Acquisition System
Table 1. MUX Channel Addressing MUX ADDRESS PINS 39 38 37 CA2 CA1 CA0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1
CHANNEL 0 1 2 3 4 5 6 7
HDAS-524 (2-BIT ADDRESS)
HDAS-528 (3-BIT ADDRESS)
Table 2. Input Range Parameters INPUT RANGE 0 to +10V 0 to +5V 0 to +2.5V 0 to +1.25V 0 to +1V 0 to +100mV 10V 5V 2.5V 1.25V 1V 100mV GAIN 1 2 4 8 10 100 1 2 4 8 10 100 2k (GAIN -1) RGAIN OPEN 2k 665 287 221 20 OPEN 2k 665 287 221 20 THROUGHPUT 400kHz 325kHz 275kHz 225kHz 175kHz 40kHz 400kHz 325kHz 275kHz 225kHz 175kHz 40kHz 2k +1 RGAIN
+5V
RGAIN =
GAIN =
Table 3. Zero and Gain Adjust INPUT RANGE 0 to +10V 10V ZERO ADJUST +1/2LSB +1.22mV +2.44mV GAIN ADJUST +FS - 1 1/2LSB +9.9963V +9.9927V Notes:
AGND
Figure 2. Typical Connection Diagram
1. For unipolar operation, connect pin 12 to pin 17. 2. For bipolar operation, connect pin 13 to pin 17. 3. Position RGAIN as close as possible to pins 10 and 11. Use RN55C, 1% resistors. 4. If gain and offset adjusts are not used, connect pin 15 to ground and leave pin 16 open.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HDAS-524/528.B01 Page 3 of 5
HDAS-524, HDAS-528
TECHNICAL NOTES 1. Rated performance requires using good high-frequency circuit board layout techniques. The analog and digital ground pins are not connected to each other internally. Avoid ground-related problems by connecting the analog, signal and digital grounds to one point, the ground plane beneath the converter. Due to the inductance and resistance of the power supply return paths, return the analog and digital grounds separately to the power supplies. This prevents contamination of the analog ground by noisy digital ground currents. 2. Double-level multiplexing allows expanding the multiplexer channel capacity of the HDAS-528 from 8 single-ended channels to 128 single-ended channels or the HDAS-524 from 4 differential channels to 32 differential channels.
12-Bit, 400kHz, Complete Data Acquisition System
3. Obtain straight binary/offset binary output coding by tying COMP BIN (pin 9) to +5V or leaving it open. The device has an internal pull-up resistor on this pin. To obtain complementary binary or complementary offset binary output coding, tie pin 9 to ground. The COMP BIN signal is compatible to CMOS/TTL logic levels for those users desiring logic control of this function. 4. To enable the three-state outputs, connect ENABLE (pin 34) to a logic "0" (low). To disable, connect pin 34 to a logic "1" (high).
START CONVERT
N1
100ns min. 850ns
N
EOC
20ns min. 35ns max. 35ns
OUTPUT DATA
N 1 Valid 1.8s N 1 Valid
N Valid
ENABLE 30ns 30ns CA1 30ns Disable N 1
Enabled data N Valid
Notes:
40ns typical
CA0
40ns typical
CH0 ADDRESSED
CH1 ADDRESSED
CH2 ADDRESSED
1. A START CONVERT pulse greater than 150ns will slow the throughput. 2. Retriggering START CONVERT before EOC goes low will not start a new conversion. 3. Times shown apply over the 0 to +70C operating temperature range.
Figure 3. HDAS-524/528 Timing Diagram
Table 4. Output Coding
STRAIGHT BINARY UNIPOLAR SCALE +FS - 1LSB +7/8FS +3/4FS +1/2FS +1/4FS +1/8FS +1LSB 0 INPUT RANGE 0 to +10V +9.9976V +8.7500V +7.5000V +5.0000V +2.5000V +1.2500V +0.0024V 0.0000V MSB 1111 1110 1100 1000 0100 0010 0000 0000 1111 0000 0000 0000 0000 0000 0000 0000
COMP. BINARY LSB INPUT RANGE 10V +9.9951V +7.5000V +5.0000V 0.0000V -5.0000V -7.5000V -9.9951V -10.0000V BIPOLAR SCALE +FS - 1LSB +3/4FS +1/2FS 0 -1/2FS -3/4FS -FS + 1LSB -FS
OUTPUT CODING LSB MSB 1111 0000 0000 0000 0000 0000 0001 0000
0000 0000 0000 0001 1111 1111 0011 1111 1111 0111 1111 1111 1011 1111 1111 1101 1111 1111 1111 1111 1110 1111 1111 1111 COMP. OFF. BINARY
OFFSET BINARY
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HDAS-524/528.B01 Page 4 of 5
HDAS-524, HDAS-528
Mechnical Dimensions INCHES (mm)
12-Bit, 400kHz, Complete Data Acquisition System
2.12 MAX. (53.85)
40-PIN DDIP
(unless otherwise indicated): 2 place decimal (.XX) 0.010 (0.254) 3 place decimal (.XXX) 0.005 (0.127) 21 0.80 MAX. (20.32) Kovar alloy 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating
40
1
20
0.100 TYP. (2.540) 1.900 0.008 (48.260) 0.245 MAX. (6.223)
PIN 1 INDEX ( ON TOP)
0.200 MAX. (5.080)
0.210 MAX. (5.334) 0.018 0.002 (0.457) 0.040 (10.160) 0.100 (2.540) SEATING PLANE 0.025 (0.635)
0.012 0.003 (0.305)
0.600 0.010 (15.240)
0.100 (2.540)
Ordering Information
Model No. HDAS-524MC HDAS-524MM HDAS-528MC HDAS-528MM HDAS-528/883 Input 4D Channels 4D Channels 8SE Channels 8SE Channels 8SE Channels Operating Temp. Range 0 to +70C -55 to +125C 0 to +70C -55 to +125C -55 to +125C
ISO 9001
REGISTERED
Receptacle for PC board mounting can be ordered through AMP Inc., Part #3-331272-8 (Component Lead Socket), 40 required. Contact Murata Power Solutions for MIL-STD-883 product specifications.
USA: Canada: UK: France:
Tucson (AZ), Tel: (800) 547 2537, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com
ISO 9001 REGISTERED
Japan:
email: sales@murata-ps.com
3/12/08
China:
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HDAS-524/528.B01 Page 5 of 5

▲Up To Search▲

Price & Availability of HDAS-524

	To Download HDAS-524 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .