Part Number: AD790

Function: Fast, Precision Comparator

Package: DIP, SOP 8 Pin Type

Manufacturer: Analog Devices

Image and Pinouts:

 

Description

The AD790 is a fast (45 ns), precise voltage comparator, with a number of features that make it exceptionally versatile and easy to use. The device may operate from either a single 5 V supply or a dual ±15 V supply. In the single-supply mode, the AD790’s inputs may be referred to ground, a feature not found in other comparators. In the dual-supply mode it has the unique  ability of handling a maximum differential voltage of 15 V across its in put terminals, easing their interfacing to large amplitude and dynamic signals.

Features

1. 45 ns max Propagation Delay

2. Single 5 V or Dual ±15 V Supply Operation

3. CMOS or TTL Compatible Output

4. 250 μV max Input Offset Voltage

5. 500 μV max Input Hysteresis Voltage

6. 15 V max Differential Input Voltage

7. Onboard Latch

8. 60 mW Power Dissipation

 

Applications:

1. Zero-Crossing Detectors

2. Overvoltage Detectors

3. Pulse-Width Modulators

4. Precision Rectifiers

5. Discrete A/D Converters

Other data sheets are available within the file: AD790AQ, AD790BQ, AD790JN, AD790JR

AD790 Datasheet PDF Download

Part Number: MAX923

Function: Dual-Supply Comparator / 12µs Propagation Delay (10mV Overdrive)

Package: SOIC-8 Type

Manufacturer: Maxim Integrated

Image and Pinouts:

 

Description

The MAX921–MAX924, MAX923 single, dual, and quad micropower, low-voltage comparators feature the lowest power consumption available. These comparators draw less than 4µA supply current over temperature (MAX921/MAX922), and include an internal 1.182V ±1% voltage reference, programmable hysteresis, and TTL/CMOS outputs that sink and source current.

Ideal for 3V or 5V single-supply applications, the MAX921–MAX924 operate from a single +2.5V to +11V supply (or a ±1.25V to ±5V dual supply), and each comparator’s input voltage range swings from the negative supply rail to within 1.3V of the positive supply.

The MAX923 is an integrated voltage regulator manufactured by Maxim Integrated. It is a high-precision, low-dropout linear regulator that is designed for use in portable and battery-powered applications.

The device features a low dropout voltage, ensuring that it can regulate output voltage with minimal drop across the regulator, even when input voltage is close to output voltage.

Features

1. Input Voltage Range Includes Negative Supply

2. Internal 1.182V ±1% Bandgap Reference

3. Adjustable Hysteresis

4. TTL/CMOS-Compatible Outputs

5. 12μs Propagation Delay (10mV Overdrive)

6. No Switching Crowbar Current

7. 40mA Continuous Source Current

 

Applications:

1. Battery-Powered Systems

2. Threshold Detectors

3. Window Comparators

4. Oscillator Circuits

 

MAX923 Datasheet PDF Download

Other data sheets are available within the file:

MAX921C/D, MAX921CPA, MAX921CSA, MAX921CUA, MAX921EPA