AD7658

更新时间： 2024-11-21 08:17:07

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
25页	311K
描述
250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC

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AD7658 数据手册

250 kSPS, 6-Channel,Simultaneous

Sampling, Bipolar 12/14/16-Bit ADC

Preliminary Technical Data

AD7658/AD7657/AD7656*

FEATURES

FUNCTIONAL BLOCK DIAGRAM

6 Independent ADCs

CONVSTB

CONVSTC

CONVSTA

True Bipolar Analog Inputs

Pin/Software Selectable Ranges:- ±10ꢀ, ±±ꢀ

Fast throughput rate: 2±0 kSPS

Specified for ꢀ_CCof 4.± ꢀ to ±.± ꢀ

Low power

CLK

OSC

SER/PAR

CONTROL

LOGIC

DRIVE

REF

STBY

BUF

OUTPUT

DRIVERS

OUT

16-BIT SAR

T/H

160mW at 2±0 kSPS with ± ꢀ supplies

Wide input bandwidth:

SCLK

16-BIT SAR

8± dB SNR at ±0 kHz input frequency

On-chip Reference and Reference Buffers

Parallel and Serial Interface

High speed serial interface

SPI/QSPI/µWire/DSP compatible

Standby mode: ± µA max

OUTPUT

DRIVERS

OUT

BUF

T/H

OUTPUT

DRIVERS

OUT

DATA/

CONTROL

LINES

OUTPUT

DRIVERS

BUF

iCMOS^TMProcess Technology

64 LQFP package

T/H

AD7656

AGND

DGND

APPLICATIONS

Figure 1.

Power Line Monitoring systems

Instrumentation and control systems

Multi-axis positioning systems

signals in the 10V range and 5V range . They contain a 2.5V

internal reference and can also accept an external reference. If a

3V external reference is applied to the VREF pin, the ADCs can

accommodate a true bipolar 12V analog input range. V_DDand

V_SSsupplies of 12V are required for this 12V input range.

GENERAL DESCRIPTION

The AD7658/AD7657/AD7656 contain six 12/14/16-bit, fast, low

power, successive approximation ADCs all in the one package.

The AD7658/AD7657/AD7656 core operates from a single 4.5

V to 5.5 V power supply and features throughput rates up to 250

kSPS. The parts contain low noise, wide bandwidth track-and-

hold amplifiers that can handle input frequencies up to 8 MHz.

PRODUCT HIGHLIGHTS

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

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 AD7658/AD7657/AD7656 have both a

high speed parallel and serial interface allowing the devices to

interface with microprocessors or DSPs. When in Serial

interface mode these parts have a Daisy Chain feature allowing

multiple ADCs to connect to a single serial interface. The

AD7658/AD7657/AD7656 can accommodate true bipolar input

2. Six true bipolar high impedance analog inputs.

3. The AD7658/AD7657/AD7656 feature both a parallel and

a high speed serial interface.

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

iCMOS^TMProcess Technology

For analog systems designers within industrial/instrumentation equipment OEMs who need high performance ICs at higher-voltage levels, iCMOS is a technology platform

that enables the development of analog ICs capable of 30V and operating at +/- 15V supplies while allowing dramatic reductions in power consumption and package size, and

increased AC and DC performance.

Rev. PrI

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.

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

Specifications subject to change without notice. No license is granted by implication

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

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与AD7658相关器件

型号	品牌	获取价格	描述	数据表
AD7658_15	ADI	获取价格	250 kSPS, 6-Channel, Simultaneous
AD7658-1	ADI	获取价格	250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar, 16-/14-/12-Bit ADC
AD7658-1_15	ADI	获取价格	250 kSPS, 6-Channel, Simultaneous
AD7658-1BSTZ	ADI	获取价格	IC 6-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQFP64, LEAD FREE, MS-026BCD,
AD7658-1YSTZ-500RL7	ADI	获取价格	IC 6-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQFP64, LEAD FREE, MS-026BCD,
AD7658BSTZ	ADI	获取价格	250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
AD7658BSTZ-1	ROCHESTER	获取价格	6-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PQFP64, ROHS COMPLIANT,
AD7658BSTZ-1	ADI	获取价格	250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar, 16-/14-/12-Bit ADC
AD7658BSTZ-1-RL	ADI	获取价格	250 kSPS, 6-Channel, Simultaneous Sampling, Bipolar, 16-/14-/12-Bit ADC
AD7658BSTZ-500RL7	ADI	获取价格	IC 6-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQFP64, LEAD FREE, MS-026BCD,

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