AD7656YSTZ Analog Devices Inc, AD7656YSTZ Datasheet

AD7656YSTZ

Manufacturer Part Number

AD7656YSTZ

Description

IC ADC 16BIT 6CH 250KSPS 64LQFP

Manufacturer

Analog Devices Inc

Datasheet

1.AD7656BSTZ-500RL7.pdf (32 pages)

Specifications of AD7656YSTZ

Data Interface

Serial, Parallel

Number Of Bits

Sampling Rate (per Second)

250k

Number Of Converters

Power Dissipation (max)

143mW

Voltage Supply Source

Analog and Digital, Dual ±

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

64-LQFP

Resolution (bits)

16bit

Sampling Rate

250kSPS

Input Channel Type

Single Ended

Supply Voltage Range - Digital

4.75V To 5.25V

Supply Current

26mA

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

For Use With

EVAL-AD7656-1EDZ - BOARD EVAL CONTROL AD7656-1EVAL-AD7656-1CBZ - BOARD EVAL FOR AD7656-1EVAL-AD7656CBZ - BOARD EVAL FOR AD7656

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

AD7656YSTZ

Manufacturer:

Analog Devices Inc

Quantity:

10 000

Company:

BOSTOCK HK LIMITED

Part Number:

AD7656YSTZ

Manufacturer:

ADI

Quantity:

114

Company:

BOSTOCK HK LIMITED

Part Number:

AD7656YSTZ-1

Manufacturer:

Analog Devices Inc

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD7656YSTZ-1

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

Part Number:

AD7656YSTZ-1-RL

Manufacturer:

Analog Devices Inc

Quantity:

10 000

Company:

BOSTOCK HK LIMITED

Part Number:

AD7656YSTZ-REEL

Manufacturer:

Analog Devices Inc

Quantity:

10 000

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FEATURES

6 independent ADCs

True bipolar analog inputs

Pin-/software-selectable ranges: ±10 V, ±5 V

Fast throughput rate: 250 kSPS

iCMOS

Low power

Wide input bandwidth

On-chip reference and reference buffers

Parallel, serial, and daisy-chain interface modes

High speed serial interface

Standby mode: 100 μW maximum

64-lead LQFP

APPLICATIONS

Power line monitoring systems

Instrumentation and control systems

Multi-axis positioning systems

GENERAL DESCRIPTION

The AD7656/AD7657/AD7658

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

technologies. 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.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

Protected by U.S. Patent No. 6,731,232.

86.5 dB SNR at 50 kHz input frequency

SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible

140 mW at 250 kSPS with 5 V supplies

process technology

contain six 16-/14-/12-bit, fast,

Sampling, Bipolar 16-/14-/12-Bit ADC

250 kSPS, 6-Channel, Simultaneous

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

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 × V

AD7657/AD7658 also contain an on-chip 2.5 V reference.

PRODUCT HIGHLIGHTS

Six 16-/14-/12-bit, 250 kSPS ADCs on board.

Six true bipolar, high impedance analog inputs.

Parallel and high speed serial interfaces.

T/H

REF

AD7656/AD7657/AD7658

BUF

FUNCTIONAL BLOCK DIAGRAM

REF

range and ±2 × V

16-/14-/12-BIT SAR

CLK

OSC

CONVST A

Figure 1.

CONVST B CONVST C

CONTROL

LOGIC

AD7656/AD7657/AD7658

AGND

REF

range. The AD7656/

DGND

DRIVERS

OUTPUT

www.analog.com

DOUT A

SER/PAR

STBY

SCLK

DOUT B

DOUT C

DATA/

CONTROL

LINES

DRIVE

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