45 ns max Propagation Delay
Single +5 V or Dual 615 V Supply Operation
CMOS or TTL Compatible Output
250 mV max Input Offset Voltage
500 mV max Input Hysteresis Voltage
15 V max Differential Input Voltage
Onboard Latch
60 mW Power Dissipation
Available in 8-Pin Plastic and Hermetic Cerdip
Packages
MIL-STD-883B Processing Available
Available in Tape and Reel in Accordance with
EIA-481A Standard
APPLICATIONS
Zero-Crossing Detectors
Overvoltage Detectors
Pulse-Width Modulators
Precision Rectifiers
Discrete A/D Converters
Delta-Sigma Modulator A/Ds
PRODUCT DESCRIPTION
The AD790SQ is a fast (45 ns), precise voltage comparator, with a number of features that make it exceptionally versatile and easy to use.
The AD790SQ 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 input terminals, easing their interfacing to large amplitude and dynamic signals.
This device is fabricated using Analog Devices’ Complementary Bipolar (CB) process–which gives the AD790’s combination of fast response time and outstanding input voltage resolution (1 mV max).
To preserve its speed and accuracy, the AD790 incorporates a “low glitch” output stage that does not exhibit the large current spikes normally found in TTL or CMOS output stages.
Its controlled switching reduces power supply disturbances that can feed back to the input and cause undesired oscillations.
The AD790SQ also has a latching function which makes it suitable for applications requiring synchronous operation.
The AD790SQ is available in five performance grades.
The AD790J and the AD790K are rated over the commercial temperature range of 0°C to +70°C.
The AD790A and AD790B are rated over the industrial temperature range of –40°C to +85°C.
The AD790S is rated over the military temperature range of –55°C to +125°C and is available processed to MIL-STD-883B, Rev. C.
Feature
- 45 ns max Propagation Delay
- Single 5 V or Dual ±15 V Supply Operation
- CMOS or TTL Compatible Output
- 250 µV max Input Offset Voltage
- 500 µV max Input Hysteresis Voltage
- 15 V max Differential Input Voltage
- Onboard Latch
- 60 mW Power Dissipation
- Available in 8-Pin Plastic and Hermetic Cerdip Packages
- Available in Tape and Reel in Accordance with EIA-481A Standard
(Picture: Pinout)
