Document
LM2903WH
Low-power, dual-voltage comparator
Datasheet - production data
S MiniSO8 (plastic micropackage)
Pin connections (top view)
1 - Output 1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC 5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+
Features
Wide, single supply voltage range or dual supplies, 2 V to 36 V or ±1 V to ±18 V Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at 5 V) Low input bias current: 25 nA typ. Low input offset current: ±5 nA typ. Input common-mode voltage range includes negative rail Low output saturation voltage: 250 mV typ. (IO = 4 mA) Differential input voltage range equal to the supply voltage TTL, DTL, ECL, MOS, CMOS compatible outputs ESD internal protection: 2 kV Wide operating temperature range: -40 to 150 °C
Description
This device consists of two independent low-power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.
The input common-mode voltage range includes negative rail even though operated from a single power supply voltage.
All pins are protected against electrostatic discharge up to 2 kV. Consequently, the input voltages must not exceed the VCC+ or VCCmagnitudes.
October 2015
DocID028311 Rev 1
This is information on a product in full production.
1/14
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Contents
LM2903WH
Contents
1 Schematic diagram.......................................................................... 3 2 Absolute maximum ratings and operating conditions ................. 4 3 Electrical characteristics ................................................................ 5 4 Typical application schematics ...................................................... 7 5 Package information ..................................................................... 10
5.1 MiniSO8 package information ......................................................... 11
6 Ordering information..................................................................... 12 7 Revision history ............................................................................ 13
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LM2903WH
Schematic diagram
1 Schematic diagram
Figure 1: Schematic diagram (1/2 LM2903WH)
VCC+
3.5 µA
100 µA 3.5 µA
100 µA
VCC+
Non-inverting input
Inverting input
VCCVCC-
VCC+
VCC-
VCC-
Vo
VCC-
DocID028311 Rev 1
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Absolute maximum ratings and operating conditions
LM2903WH
2 Absolute maximum ratings and operating conditions
Symbol
Table 1: Absolute maximum ratings Parameter
Value
Unit
VCC Vid Vin Vout
Rthja Rthjc Tj Tstg
ESD
Supply voltage
Differential input voltage
Input voltage
Output voltage Output short-circuit to ground (1) Thermal resistance junction to ambient (2) Thermal resistance junction to case (2)
Maximum junction temperature
Storage temperature range Human body model (HBM) (3) Machine model (MM) (4) CDM: charged device model (5)
±18 or 36
(VCC-) - 0.3 to (VCC+) + 0.3
36 Infinite
190 39 160 -65 to 160 2000 200 1500
V
°C/W °C V
Notes:
(1)Short-circuits from the output to VCC+ can cause excessive heating and possible destruction. The maximum output current is approximately 20 mA and is independent of the VCC+ magnitude. (2)Short-circuits can cause excessive heating and destructive dissipation. Values are typical and for a four-layer PCB.
(3)Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
(4)Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating.
(5)Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.
Symbol Vicm Toper
Table 2: Operating conditions Parameter
Common mode input voltage range -40 °C ≤ Tamb ≤ 150 °C Operating free-air temperature range
Value 0 to (VCC+) - 1.5 0 to (VCC+) - 2
-40 to 150
Unit V °C
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LM2903WH
Electrical characteristics
3 Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
Vio Input offset voltage (1) Iio Input offset current Iib Input bias current (2) Avd Large signal voltage gain
-40 °C ≤ Tamb ≤ 150 °C
-40 °C ≤ Tamb ≤ 150 °C
-40 °C ≤ Tamb ≤ 150 °C VCC = 15 V, RL = 15 kΩ, Vο = 1 tο 11 V
17 mV
15
5 50
150 25 250
nA
400
25 200
V/mV
ICC
Supply current (all comparators)
Vid Differential input voltage (3)
VOL Low level output voltage
IOH High level output current
Isink Output sink current
tres
Small signa.