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Part Number: LM293

Function: DUAL DIFFERENTIAL COMPARATOR

Package: SOIC, VSSOP, PDIP 8 Pin Type

Manufacturer: Texas Instruments

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Features

1. Single-Supply or Dual Supplies
2. Wide Range of Supply Voltage
– Maximum Rating: 2 V to 36 V
– Tested to 30 V: Non-V Devices
– Tested to 32 V: V-Suffix Devices
3. Low Supply-Current Drain Independent of Supply Voltage: 0.4 mA (Typical) Per Comparator
4. Low Input Bias Current: 25 nA (Typical)
5. Low Input Offset Current: 3 nA (Typical) (LM139)
6. Low Input Offset Voltage: 2 mV (Typical)
7. Common-Mode Input Voltage Range Includes Ground
8. Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage: ±36 V

Pinout

Description

This is Dual differential comparator.

The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM393B and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both “A” and “V”
grades.

These devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible as long as the difference between the two supplies is 2 V to 36 V, and V CC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.

Features

1. Common-mode input voltage range includes ground

2. Differential input voltage range equal to maximum-rated supply voltage : ±38 V

3. Low output saturation voltage

4. Output compatible with TTL, MOS, and CMOS

Applications:

• Vacuum robot
• Single phase UPS
• Server PSU
• Cordless power tool
• Wireless infrastructure
• Applicances
• Building automation
• Factory automation & control
• Motor drives
• Infotainment & cluste

Official Homepage: https://www.ti.com/product/LM293

Datasheet Download : https://www.ti.com/lit/ds/symlink/lm293.pdf

LM293 Datasheet PDF

Description

The TRF3722 is a high performance direct conversion quadrature modulator with exceptional linearity and low noise performance. The typical 0.25 V baseband common mode voltage supports seamless interface with current source DACs. The device integrates the PLL and VCO to provide the local oscillator (LO) to the modulator. The PLL and VCO provides excellent phase noise performance to satisfy the most stringent transmit communication requirements. The device also provides additional LO output for driving a second modulator or down converting mixer. The modulator features a high gain mode for a typical 3 dB gain increase and a low power mode when power optimization is desired.

Block Diagram :