Product Summary

The AD7874BR is a four-channel simultaneous sampling, 12-bit data acquisition system. The AD7874BR contains a high speed 12-bit ADC, on-chip reference, on-chip clock and four track/hold amplifiers. This latter feature allows the four input channels to be sampled simultaneously, thus preserving the relative phase information of the four input channels, which is not possible if all four channels share a single track/hold amplifier. This makes the AD7874BR ideal for applications such as phased-array sonar and ac motor controllers where the relative phase information is important. The applications of the AD7874BR include Sonar, Motor Controllers, Adaptive Filters and Digital Signal Processing.

Parametrics

AD7874BR absolute maximum ratings: (1)VDD to AGND: –0.3 V to +7 V; (2)VDD to DGND: –0.3 V to +7 V; (3)VSS to AGND: +0.3 V to –7 V; (4)AGND to DGND: –0.3 V to VDD + 0.3 V; (5)VIN to AGND: –15 V to +15 V; (6)REF OUT to AGND: 0 V to VDD; (7)Digital Inputs to DGND: –0.3 V to VDD + 0.3 V; (8)Digital Outputs to DGND: –0.3 V to VDD + 0.3 V; (9)Operating Temperature Range, Commercial (A, B Versions): –40 to +85℃; Extended (S Version): –55 to +125℃; (10)Storage Temperature Range: –65 to +150℃; (11)Lead Temperature (Soldering, 10 secs): +300℃; (12)Power Dissipation (Any Package) to +75℃: 1,000 mW; (13)Derates above +75℃ by: 10 mW/℃.

Features

AD7874BR features: (1)Four On-Chip Track/Hold Amplifiers; (2)Simultaneous Sampling of 4 Channels; (3)Fast 12-Bit ADC with 8 μs Conversion Time/Channel; (4)29 kHz Sample Rate for All Four Channels; (5)On-Chip Reference; (6)610 V Input Range; (7)65 V Supplies.

Diagrams

AD7874BR functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD7874BR
AD7874BR
Analog Devices Inc
IC DAS 12BIT 4CH 5V 28-SOIC
Data Sheet
Negotiable 
AD7874BRZ
AD7874BRZ

IC DAS 12BIT 4CH LC2MOS 28-SOIC
Data Sheet
0-5: $40.21