Integrated Circuit Chip AD674BJNZ - Analog Devices - Complete 12-Bit A/D Converters



Detailed Product Description

Quick Detail:


Complete 12-Bit A/D Converters





The AD674B and AD774B are complete 12-bit successiveapproximation analog-to-digital converters with three-state output buffer circuitry for direct interface to 8- and 16-bit microprocessor busses. A high-precision voltage reference and clock are included on chip, and the circuit requires only power supplies and control signals for operation.

The AD674B and AD774B are pin-compatible with the industry standard AD574A, but offer faster conversion time and busaccess speed than the AD574A and lower power consumption.

The AD674B converts in 15 µs (maximum) and the AD774B converts in 8 µs (maximum).

The monolithic design is implemented using Analog Devices’ BiMOS II process allowing high-performance bipolar analog circuitry to be combined on the same die with digital CMOS logic.

Offset, linearity, and scaling errors are minimized by active laser trimming of thin-film resistors.

Five different grades are available. The J and K grades are specified for operation over the 0°C to 70°C temperature range.

The A and B grades are specified from –40°C to +85°C, the T grade is specified from –55°C to +125°C. The J and K grades are available in a 28-lead plastic DIP or 28-lead SOIC. All other grades are available in a 28-lead hermetically sealed ceramic DIP.





Complete Monolithic 12-Bit A/D Converters with

Reference, Clock, and Three-State Output Buffers

Industry Standard Pinout

High Speed Upgrades for AD574A

8- and 16-Bit Microprocessor Interface

8 [1]s (Max) Conversion Time (AD774B)

15 [1]s (Max) Conversion Time (AD674B)


5 V,

10 V, 0 V–10 V, 0 V–20 V Input Ranges

Commercial, Industrial, and Military Temperature

Range Grades

MIL-STD-883-Compliant Versions Available







Product Photos


Standard Package



Integrated Circuits (ICs)


Data Acquisition - Analog to Digital Converters (ADC)





Number of Bits


Sampling Rate (Per Second)


Data Interface


Number of Converters


Power Dissipation (Max)


Voltage Supply Source

Dual ±

Operating Temperature

0°C ~ 70°C

Mounting Type

Through Hole

Package / Case

28-DIP (0.600", 15.24mm)

Supplier Device Package


Number of Inputs and Type

2 Single-Ended, Unipolar; 2 Single-Ended, Bipolar



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Warranty :180 days !
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(goods weight below 3Kg) ,during 20130901-20130930 .

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