AD7656YSTZ

Semiconductors - ICs

> Data & Signal Conversion

> Analog-to-Digital Converters - ADC

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Series Information for AD7656YSTZ - Analog Devices

Features

  • feature
    6 independent ADCs True bipolar analog inputs Pin-/software-selectable ranges: u00b110 V, u00b15 V Fast throughput rate: 250 kSPS iCMOS process technology Low power 140 mW at 250 kSPS with 5 V supplies Wide input bandwidth 86.5 dB SNR at 50 kHz input frequency On-chip reference and reference buffers Parallel, serial, and daisy-chain interface modes High speed serial interface SPI-/QSPIu2122-/MICROWIREu2122-/DSP-compatible Standby mode: 100 u00b5W maximum 64-lead LQFP

Description

16BIT ADC 6-CH SMD LQFP64 7656
The AD7656/AD7657/AD76581 contain six 16-/14-/12-bit, fast, low power, successive approximation ADCs all in the one package that is designed on the iCMOS™ process (industrial CMOS). iCMOS is a process combining high voltage silicon with submicron CMOS and complementary bipolar technol- ogies. It enables the development of a wide range of high performance analog ICs, capable of 33 V operation in a footprint that no previous generation of high voltage parts could achieve. Unlike analog ICs using conventional CMOS processes, iCMOS components can accept bipolar input signals while providing increased performance, which dramatically reduces power consumption and package size. The AD7656/AD7657/AD7658 feature throughput rates up to 250 kSPS. The parts contain low noise, wide bandwidth, track-and-hold amplifiers that can handle input frequencies up to 12 MHz. The conversion process and data acquisition are controlled using CONVST signals and an internal oscillator. Three CONVST pins allow independent, simultaneous sampling of the three ADC pairs. The AD7656/AD7657/AD7658 all have a high speed parallel and serial interface, allowing the devices to interface with microprocessors or DSPs. In serial interface mode, the parts have a daisy-chain feature that allows multiple ADCs to connect to a single serial interface. The AD7656/ AD7657/AD7658 can accommodate true bipolar input signals in the ±4 × VREF range and ±2 × VREF range. The AD7656/ AD7657/AD7658 also contain an on-chip 2.5 V reference.

Specifications

Resolution (Bits):
16bit
Sampling Rate:
250kSPS
Input Channel Type:
Single Ended
Data Interface:
Parallel Serial
Supply Voltage Type:
Dual (+/-)
Supply Voltage Min:
5V
Supply Voltage Max:
15V
ADC / DAC Case Style:
LQFP
No. of Pins:
64Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Product Range:
Hex 16-Bit SAR ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
Base Number:
7656
Conversion Time:
3.1µs
IC Case Style:
QFP
No. of Bits:
16bit
No. of Channels:
6Channels
Operating Temperature Range:
-40°C to +125°C
Supply Current:
26mA
Supply Voltage Range - Analogue:
4.75V to 5.25V ± 10V to ± 16.5V
Supply Voltage Range - Digital:
2.7V to 5.25V 4.75V to 5.25V
Termination Type:
Surface Mount Device

Alternate Descriptions

Richardson RFPD

CONVERTER - ADC