View AU2903_280597.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

INTEGRATED CIRCUITS
AU2903 Low power dual voltage comparator
Product data Supersedes data of 1994 Aug 31 File under Integrated Circuits, IC11 Handbook 2001 Aug 03
Philips Semiconductors
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
DESCRIPTION
The AU2903 consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max. for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.
PIN CONFIGURATION
D and N Packages
OUTPUT A INVERTING INPUT A NON-INVERTING INPUT A GND 1 2 3 4 A B 8 7 6 5
V+ OUTPUT B INVERTING INPUT B NON-INVERTING INPUT B
FEATURES
TOP VIEW
* Wide single supply voltage range 2.0 VDC to 36 VDC, * Very low supply current drain (0.8 mA) independent of supply * Low input biasing current 25 nA * Low input offset current 5 nA and offset voltage 2 mV * Input common-mode voltage range includes ground * Differential input voltage range equal to the power supply voltage * Low output 250 mV at 4 mA saturation voltage * Output voltage compatible with TTL, DTL, ECL, MOS and CMOS
logic systems voltage (2.0 mW/comparator at 5.0 VDC) or dual supplies 1.0 VDC, to 18 VDC
SL00110
Figure 1. Pin configuration.
EQUIVALENT CIRCUIT
V+
3.5 A
100 A
3.5 A
100 A
Q2
Q3 Q4 OUTPUT
+ INPUT
- INPUT
Q1
APPLICATIONS
Q8 Q7 Q5 Q6
* A/D converters * Wide range VCO * MOS clock generator * High voltage logic gate * Multivibrators.
ORDERING INFORMATION
DESCRIPTION 8-Pin Plastic Small Outline (SO) Package 8-Pin Plastic Dual In-Line Package (DIP)
(1 Comparator Only)
SL00111
Figure 2. Equivalent circuit.
TEMPERATURE RANGE -40 C to +125 C -40 C to +125 C
ORDER CODE AU2903D AU2903N
DWG # SOT96-1 SOT97-1
2001 Aug 03
2
853-1636 26837
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
ABSOLUTE MAXIMUM RATINGS
SYMBOL VCC VIN PDMAX Supply voltage Differential input voltage Input voltage Maximum power dissipation; Tamb = 25 C (still-air) N package D package Output short-circuit to ground1 IIN Tamb Tstg Tsld Input current (VIN < -0.3 VDC) 2 Operating temperature range Storage temperature range Lead soldering temperature (10 sec max)
3
PARAMETER
RATING 36 or 18 36 -0.3 to +36 1160 780 Continuous 50 -40 to +125 -65 to +150 230
UNIT VDC VDC VDC mW mW mA C C C
NOTES: 1. Short circuits from the output to V+ can cause excessive heating and eventual destruction. The maximum output current is approximately 20 mA independent of the magnitude of V+. 2. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3 VDC. 3. Derate above 25 C, at the following rates: N package at 9.3 mW/C D package at 6.2 mW/C
2001 Aug 03
3
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
DC AND AC ELECTRICAL CHARACTERISTICS
V+ = 5 VDC; -40 C Tamb +125 C, unless otherwise specified. SYMBOL VOS VCM VIDR IBIAS PARAMETER Input offset voltage2 In ut
, In ut Input common-mode voltage range3, 6
TEST CONDITIONS Tamb = 25 C Over temp. Tamb = 25 C Over temp. Keep all VIN 0 VDC (or V- if need) IIN(+) or IIN(-) with output in linear range Tamb = 25 C Over temp. IIN(+) - IIN(-) Tamb = 25 C Over temp. VIN(-) 1VDC; VIN(+) = 0; VO 1.5VDC; Tamb = 25 C VIN(+) 1 VDC; VIN(-) = 0 VO = 5 VDC; Tamb = 25 C VO = 30 VDC; over temp. RL = on both comparators. Tamb = 25 C V+ = 30 V; over temp. RL 15 k; V+ = 15 VDC; Tamb = 25 C VIN(-) 1 VDC; VIN(+) = 0; ISINK 4 mA Tamb = 25 C Over temp. VIN = TTL logic swing; VREF = 1.4 VDC; VRL = 5 VDC; RL = 5.1 k; Tamb = 25 C VRL = 5 VDC; RL = 5.1 k Tamb = 25 C
Limits Min Typ 2.0 2.5 0 0 Max 3 5 V+ -1.5 V+ -2.0 V+ 25 200 5 50 6.0 16 250 500 50 200
UNIT mV mV V V V nA nA nA nA mA
Differential input voltage1 Input bias current4
IOS
Input offset current
IOL
Output sink current
IOH
Output leakage current
0.1 1.0 0.8 1 25 100 1 2.5
nA A mA mA V/mV
ICC
Supply current
AV
Voltage gain
VOL
Saturation voltage
400
400 700
mV mV ns s
tLSR tR
Large-signal response time Response time5
300 1.3
NOTES: 1. Positive excursions of input voltage may exceed the power supply level by 17 V. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than -0.3 VDC (VDC below the magnitude of the negative power supply, if used). 2. At output switch point, VO 1.4 VDC, RS = 0 with V+ from 5 VDC to 30 VDC and over the full input common-mode range (0 VDC to V+ -1.5 VDC). 3. The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range is V+ -1.5 V, but either or both inputs can go to 30 VDC without damage. 4. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the reference or input lines. 5. The response time specified is for a 100 mV input step with a 5 mV overdrive. 6. For input signals that exceed VCC, only the over-driven comparator is affected. With a 5 V supply, VIN should be limited to 25 V maximum, and a limiting resistor should be used on all inputs that might exceed the positive supply.
2001 Aug 03
4
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
TYPICAL APPLICATIONS
V+ 700k 100k V+
+ VC FREQUENCY CONTROL VOLTAGE INPUT
50k
-
10
500pF
30k 5.1k
3.0k
- +
.01F V - /2 OUTPUT 1
0.1F 20k 20k V + /2
+
OUTPUT 2
+ -
NOTES: V+ = 30VDC + 250m VDC < VC = 50VDC 700H < fO = 100kHz
Two-Decade High-Frequency VCO
+ V (12V
DC)
+V
2RS
REF HI
RS
10K + - LAMP
+V + 5V
IN
+
DC 360
2RS +VREF LOW
2N2222 -
Limit Comparator
+
+V
REF 4 100
-
100k + 5V 360 DC
5VDC
+ + - +VREF 1.4VDC
VO 10K
o -12V
+V
VO
REF 3 - 100 100k + 5V 360 DC
-12VDC
TTL-to-MOS Logic Converter
V+ 200k 2.0k V+ 0.1F + - VO 0
+V
+
REF 2 - 100k + 5V 360 DC
100k
100
+V
+
REF 1 - 100 100k
200k
CRYSTAL 1 - 100kHz
Visible Voltage Indicator
NOTE: Input of unused comparators should be grounded.
Crystal-Controlled Oscillator
SL00112
Figure 3. Typical applications.
2001 Aug 03
5
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
TYPICAL PERFORMANCE CHARACTERISTICS
Input Current
80
V O-- SATURATION VOLTAGE (V DC ) I N -- INPUT CURRENT -- nADC VIN (CM) = 0 VDC RIN (CM) = 10k 10 OUT OF SATURATION 1.0
Output Saturation Voltage
60
TA = -55oC TA = 0oC
40
0.1
TA = +125oC TA = -55oC
20
TA = +125oC
TA = +25oC TA = +70oC
0.01 TA = +25o 0.1 1.0 10 100
0
10
20
30
40
0.001 0.01
v + -- SUPPLY VOLTAGE -- VDC
IO -- OUTPUT SINK CURRENT (mA)
Response Time for Various Input Overdrives -- Negative Transition
OUTPUT VOLTAGE VO -- mV OUTPUT VOLTAGE VO -- mV 6 5 4 3 2 1 INPUT VOLTAGE VIN -- mV 0 0 -50 VIN - + 5mV = INPUT OVERDRIVE + 5V 6 5 4 3 2 1 INPUT VOLTAGE VIN -- mV 0 0 -50
Response Time for Various Input Overdrives -- Positive Transition
INPUT OVERDRIVE = 100mV
20mV
5.1K VOUT
5mV 20mV
100mV
+ 5V
OVERDRIVE
TA = 25oC 0 0.5 1.0 1.5 2.0 TIME -- sec
TA = 25oC
VIN
- +
5.1K VOUT
-100
-100 0 0.5
OVERDRIVE
1.0 1.5 2.0 TIME -- sec
SL00113
Figure 4. Typical performance characteristics.
2001 Aug 03
6
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
DIP8: plastic dual in-line package; 8 leads (300 mil)
SOT97-1
2001 Aug 03
7
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
SO8: plastic small outline package; 8 leads; body width 3.9 mm
SOT96-1
2001 Aug 03
8
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
NOTES
2001 Aug 03
9
Philips Semiconductors
Product data
Low power dual voltage comparator
AU2903
Data sheet status
Data sheet status [1] Objective data Preliminary data Product status [2] Development Qualification Definitions This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A.
Product data
Production
[1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
Contact information
For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825
(c) Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 01-02
For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
Document order number:
9397 750 09323
Philips Semiconductors
2001 Aug 03 10

▲Up To Search▲

Price & Availability of AU2903

	To Download AU2903 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .