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AD674B
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MFG:TOSHIBA Package Cooled:DIP D/C:12

AD6 Series Datasheet download

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Part Number: AD674B

MFG: TOSHIBA

Package Cooled: DIP

D/C: 12

Description: The AD674B and AD774B are complete 12-bit successive approximation analog-to-digital converters with three-state output...

AD674B General Description

The AD674B and AD774B are complete 12-bit successive approximation 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 s (maximum) and the AD774B converts in 8 s (maximum).
The monolithic design is implemented us ing Analog Devices' BiMOS II process allowing high-performance bipolar analog circuitry to be combined on the same die with digital CMOS logic. Offset, line arity, 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 spec ified 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.

AD674B Maximum Ratings

V _CCto Digital Common . . . . . . . . . . . . . . . . . . . 0 to +16.5 V
V _EE to Digital Common . . . . . . . . . . . . . . . . . . . . 0 to 16.5 V
V_LOGICto Digital Common . . . . . . . . . . . . . . . . . . . 0 to +7 V
Analog Common to Digital Common . . . . . . . . . ±1 V+0.5 V
Digital Inputs to Digital Common . . . 0.5 V _LOGICto V
Analog Inputs to Analog Common . . . . . . . . . . . . VEE to VCC
20 V _INto Analog Common . . . . . . . . . . . . . . . . . . . . . . ±24 V
REF OUT . . . . . . . . . . . . . . . . . . Indefinite Short to Common
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Momentary Short to V _CCJunction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 175°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 825 mW
Lead Temperature, Soldering (10 sec) . . . . . . . . . . . . . 300°C
Storage Temperature . . . . . . . . . . . . . . . . . . 65°C to +150°C

AD674B Features

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 s (Max) Conversion Time (AD774B)
15 s (Max) Conversion Time (AD674B)5 V, 10 V, 0 V10 V, 0 V20 V Input Ranges
Commercial, Industrial, and Military Temperature
Range Grades
MIL-STD-883-Compliant Versions Available

AD674B Connection Diagram

AD674B datasheet

AD674B
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Datasheet: AD674B
File Size: 264995 KB
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