Datasheet > EVAL-AD7357EDZ

EVAL-AD7357EDZ

更新时间： 2024-12-01 06:58:07

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	468K
描述
Differential Input, Dual, Simultaneous Sampling, 4.2 MSPS, 14-Bit, SAR ADC

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EVAL-AD7357EDZ 数据手册

Differential Input, Dual, Simultaneous

Sampling, 4.2 MSPS, 14-Bit, SAR ADC

AD7357

FUNCTIONAL BLOCK DIAGRAM

FEATURES

DRIVE

Dual 14-bit SAR ADC

Simultaneous sampling

AD7357

Throughput rate: 4.2 MSPS per channel

Specified for a V_DDof 2.5 V

Power dissipation: 36 mW at 4.2 MSPS

On-chip reference: 2.048 V 0.25%, 6 ppm/°C

Dual conversion with read

INA+

14-BIT

SUCCESSIVE

APPROXIMATION

ADC

T/H

SDATA

INA–

REF

BUF

High speed serial interface

SPI-/QSPI-/MICROWIRE-/DSP-compatible

−40°C to +125°C operation

16-lead TSSOP package

SCLK

CONTROL

LOGIC

REF

BUF

APPLICATIONS

REF

14-BIT

SUCCESSIVE

APPROXIMATION

ADC

SDATA

Data acquisition systems

Motion control

INB+

INB–

T/H

I & Q demodulation

RFID readers

AGND

REFGND

DGND

Figure 1.

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7357¹is a dual, 14-bit, high speed, low power, successive

approximation analog-to-digital converter (ADC) that operates

from a single 2.5 V power supply and features throughput rates

up to 4.2 MSPS. The part contains two ADCs, each preceded by

a low noise, wide bandwidth track-and-hold circuit that can

handle input frequencies in excess of 110 MHz.

1. Two Complete ADC Functions.

These functions allow simultaneous sampling and conversion

of two channels. The conversion result of both channels is

simultaneously available on separate data lines or in suc-

cession on one data line if only one serial port is available.

2. High Throughput with Low Power Consumption.

The AD7357 offers a 4.2 MSPS throughput rate with

36 mW power consumption.

The conversion process and data acquisition use standard

control inputs allowing for easy interfacing to microprocessors

3. Simultaneous Sampling.

or DSPs. The input signal is sampled on the falling edge of ; a

The part features two standard successive approximation

ADCs with accurate control of the sampling instant via a

conversion is also initiated at this point. The conversion time is

determined by the SCLK frequency.

input and once off conversion control.

The AD7357 uses advanced design techniques to achieve very

low power dissipation at high throughput rates. With a 2.5 V

supply and a 4.2 MSPS throughput rate, the part consumes 14 mA

typically. The part also offers flexible power/throughput rate

management options.

Table 1. Related Devices

Generic Resolution Throughput Analog Input

AD7356 12-bit

AD7352 12-bit

AD7266 12-bit

AD7866 12-bit

AD7366 12-bit

AD7367 14-bit

5 MSPS

3 MSPS

2 MSPS

1 MSPS

Differential

Differential/single-ended

Single-ended

Single-ended bipolar

The analog input range for the part is the differential common

mode

V_REF/2. The AD7357 has an on-chip 2.048 V reference

that can be overdriven when an external reference is preferred.

The AD7357 is available in a 16-lead thin shrink small outline

package (TSSOP).

¹Protected by U.S. Patent No. 6,681,332.

Rev. 0

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 registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与EVAL-AD7357EDZ相关器件

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EVAL-AD7366CBZ	ADI	获取价格	True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-
EVAL-AD7366SDZ	ADI	获取价格	BOARD EVAL FOR AD7366
EVAL-AD7367CBZ	ADI	获取价格	True Bipolar Input, Dual 1 レs, 12-/14-Bit, 2-
EVAL-AD7367SDZ	ADI	获取价格	BOARD EVAL AD7367
EVAL-AD7376EBZ	ADI	获取价格	128-Position Digital Potentiometer
EVAL-AD7380FMCZ	ADI	获取价格	Dual, Simultaneous Sampling SAR ADCs, Differential Inputs
EVAL-AD7381FMCZ	ADI	获取价格	Dual, Simultaneous Sampling SAR ADCs, Differential Inputs
EVAL-AD7400AEBZ	ADI	获取价格	Isolated Sigma-Delta Modulator
EVAL-AD7400EB	ADI	获取价格	Isolated Sigma-Delta Modulator
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