# LMx93, LM2903 Dual Differential Comparators

## 1 Features
️· Single-Supply or Dual Supplies
️· Wide Range of Supply Voltage (2V to 36V)
️· Low Supply-Current Drain (0.4 mA typical per comparator)
️· Low Input Bias Current (25 nA typical)
️· Low Input Offset Current (3 nA typical)
️· Low Input Offset Voltage (2 mV typical)
️· Common-Mode Input Voltage Range Includes Ground
️· Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage (±36 V)
️· Low Output Saturation Voltage
️· Output Compatible With TTL, MOS, and CMOS

## 2 Applications
️· Chemical or Gas Sensor
️· Desktop PC
️· Motor Control: AC Induction
️· Weigh Scale

## 3 Description
These devices consist of two independent voltage comparators designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies is also possible.

## 4 Device Information
️· Package Options: SOIC (8), VSSOP (8), GDIP (8), PDIP (8), SO (8), TSSOP (8), CQCC (8)
️· Body Size (Nom): 4.90 mm x 6.00 mm (SOIC) to 9.00 mm x 9.00 mm (CQCC)

## 5 Specifications
️· Absolute Maximum Ratings:
- VCC: 36 V
- VID: ±36 V
- Input Voltage: -0.3 V to 36 V
- Output Current: 20 mA
- Operating Junction Temperature: 150°C
️· Recommended Operating Conditions:
- VCC (Non-V Devices): 2 V to 30 V
- VCC (V Devices): 2 V to 32 V
- Junction Temperature: -40°C to 125°C
️· Electrical Characteristics (LMx93): (at specified free-air temperature, VCC = 5V)
- Input Offset Voltage: 2 mV (typical)
- Input Bias Current: 25 nA (typical)
- Supply Current: 0.8 mA (typical)
- Large-signal differential-voltage amplification: 50V/mV

## 6 Detailed Description
️· Each comparator has a PNP Darlington pair input, providing high gain and fast response with minimal input bias current.
️· Open-drain NPN output.