Product Summary

The AD1674BD is a complete, multipurpose, 12-bit analog-todigital converter, consisting of a user-transparent onboard sample-and-hold amplifier (SHA), 10 volt reference, clock and three-state output buffers for microprocessor interface. The AD1674BD includes a sampling function while delivering a faster conversion rate. The on-chip SHA has a wide input bandwidth supporting 12-bit accuracy over the full Nyquist bandwidth of the converter. The AD1674BD is fully specified for ac parameters (such as S/(N+D) ratio, THD, and IMD) and dc parameters (offset, full-scale error, etc.). With both ac and dc specifications, the device is ideal for use in signal processing and traditional dc measurement applications.

Parametrics

AD1674BD absolute maximum ratings: (1)VCC to Digital Common: 0 to + 16.5 V; (2)VEE to Digital Common: 0 to –16.5 V; (3)VLOGIC to Digital Common: 0 V to +7 V; (4)Analog Common to Digital Common: ±1 V; (5)Digital Inputs to Digital Common: –0.5 V to VLOGIC +0.5 V; (6)Analog Inputs to Analog Common: VEE to VCC; (7)20 VIN to Analog Common: VEE to +24 V; (8)REF OUT:Indefinite Short to Common; Momentary Short to VCC; (9)Junction Temperature: +175℃; (10)Power Dissipation: 825 mW; (11)Lead Temperature, Soldering (10 sec): +300℃, 10 sec; (12)Storage Temperature: –65 to +150℃.

Features

AD1674BD features: (1)Complete Monolithic 12-Bit 10 ms Sampling ADC; (2)On-Board Sample-and-Hold Amplifier; (3)Industry Standard Pinout; (4)8- and 16-Bit Microprocessor Interface; (5)AC and DC Specified and Tested; (6)Unipolar and Bipolar Inputs; (7)65 V, 610 V, 0 V–10 V, 0 V–20 V Input Ranges; (8)Commercial, Industrial and Military Temperature Range Grades; (9)MIL-STD-883 and SMD Compliant Versions Available.

Diagrams

AD1674BD functional block diagram

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