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LM2901DR2G

Quad comparator, 2-36V, 1.3us, AEC-Q100, open-collector, SOIC-14, automotive

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Manufacturer Part：

LM2901DR2G

Package：

SOIC-14 (8.75 x 3.90 x 1.50 mm)

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Description

Product Overview

The LM2901DR2G from onsemi is a quad differential comparator in a SOIC-14 package. Operating from 2V to 36V single supply with 1.3us response time, it is AEC-Q100 qualified for automotive and industrial comparator applications.

Key Specifications

Channels 4 (quad)
Supply Voltage 2 V to 36 V (single) / +/-1V to +/-18V (dual)
Response Time 1.3 us (typical)
Input Offset Voltage 2 mV (typical)
Input Bias Current 25 nA (typical)
AEC-Q100 Yes
Operating Temperature -40C to +125C

Features

  • AEC-Q100 qualified for automotive applications
  • 2V to 36V wide single-supply range
  • 1.3us typical response time for fast comparison
  • Open-collector output for wired-OR logic
  • Low 25nA input bias current

Applications

  • Automotive battery monitoring and threshold detection
  • Industrial voltage and current comparison
  • Window comparator and level detection
  • Zero-crossing detection in power systems

The LM2901DR2G from onsemi is an AEC-Q100 qualified quad differential comparator in a SOIC-14 package. The device consists of four independent precision voltage comparators designed to operate from a single 2V to 36V supply or dual +/-1V to +/-18V supplies. Each comparator features 2mV typical input offset voltage, 25nA input bias current, and 1.3us typical response time. The open-collector output can be connected to logic supplies via a pull-up resistor and supports wired-OR connections for multi-comparator logic functions. The device is pin-compatible with the industry-standard LM2901/LM339 family. The -40C to +125C automotive temperature range and AEC-Q100 qualification make it suitable for automotive battery monitoring, threshold detection, and industrial comparison applications.

The LM2901DR2G uses a differential input stage with open-collector output. (1) Input Stage: A PNP differential pair provides the input common-mode range down to ground (0V), essential for single-supply operation. The two inputs (IN+ and IN-) are compared with 2mV typical offset. (2) Gain Stage: A high-gain amplification stage provides the comparison function. When IN+ is higher than IN-, the output transistor is off (open-collector, pulled high by external resistor). When IN+ is lower than IN-, the output transistor is on (saturated low). (3) Output Stage: An open-collector NPN output transistor can sink up to 16mA. The open-collector configuration allows wired-OR connections and interfacing to different logic voltage levels. (4) Response: The 1.3us response time is measured with 5mV overdrive and includes the output transition time.

Pin Name Type Function
1 OUT2 Output Comparator 2 output (open-collector)
2 OUT1 Output Comparator 1 output (open-collector)
3 VCC Power Supply (2-36V)
4 IN1- Input Comparator 1 inverting input
5 IN1+ Input Comparator 1 non-inverting input
6 IN2- Input Comparator 2 inverting input
7 IN2+ Input Comparator 2 non-inverting input
8 IN3- Input Comparator 3 inverting input
9 IN3+ Input Comparator 3 non-inverting input
10 IN4- Input Comparator 4 inverting input
11 IN4+ Input Comparator 4 non-inverting input
12 GND Ground Ground
13 OUT4 Output Comparator 4 output
14 OUT3 Output Comparator 3 output
  • Automotive battery monitoring and threshold detection with AEC-Q100
  • Industrial voltage and current comparison with 2V-36V supply range
  • Window comparator and level detection with open-collector wired-OR
  • Zero-crossing detection in power systems at 1.3us response time
Manufacturer Part Number Package Notes
onsemi LM339DR2G SOIC-14 Commercial temp version
TI LM2901DR SOIC-14 Direct equivalent
ST LM2901DT SOIC-14 Direct equivalent
TI TLV3201AIDBVR SOT-23-5 Single, 40ns, push-pull
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