Datasheet > AD7451ART-R2

AD7451ART-R2

更新时间： 2024-09-17 15:30:23

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管转换器
页数	文件大小	规格书
20页	502K
描述
IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN, Analog to Digital Converter

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替代型号

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AD7451ART-R2 数据手册

Pseudo Differential, 1 MSPS,

10- and 12-Bit ADCs in an 8-Lead SOT-23

AD7441/AD7451

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Fast Throughput Rate: 1 MSPS

Specified for V_DDof 2.7 V to 5.25 V

Low Power at Max Throughput Rate:

4 mW Max at 1 MSPS with V_DD= 3 V

9.25 mW Max at 1 MSPS with V_DD= 5 V

Pseudo Differential Analog Input

Wide Input Bandwidth:

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

IN+

T/H

70 dB SINAD at 100 kHz Input Frequency

Flexible Power/Serial Clock Speed Management

No Pipeline Delays

IN–

REF

High Speed Serial Interface—SPI^®/QSPI™/

MICROWIRE™/DSP Compatible

Power-Down Mode: 1 ␮A Max

8-Lead SOT-23 and MSOP Packages

SCLK

SDATA

AD7441/AD7451

CONTROL LOGIC

APPLICATIONS

Transducer Interface

Battery-Powered Systems

Data Acquisition Systems

Portable Instrumentation

Motor Control

GND

Communications

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

The AD7441/AD7451 are, respectively, 10-bit and 12-bit, high

speed, low power, successive approximation (SAR) analog-to-

digital converters that feature a pseudo differential analog input.

These parts operate from a single 2.7 V to 5.25 V power supply

and feature throughput rates up to 1 MSPS.

1. Operation with 2.7 V to 5.25 V Power Supplies.

2. High Throughput with Low Power Consumption.

With a 3 V supply, the AD7441/AD7451 offer 4 mW max

power consumption for a 1 MSPS throughput rate.

3. Pseudo differential Analog Input.

The parts contain a low noise, wide bandwidth, differential

track-and-hold amplifier (T/H) that can handle input frequen-

cies in excess of 1 MHz. The reference voltage for the AD7441/

AD7451 is applied externally to the V_REFpin and can range

from 100 mV to 3.5 V, depending on the power supply and

what suits the application.

4. Flexible Power/Serial Clock Speed Management.

The conversion rate is determined by the serial clock, allow-

ing the power to be reduced as the conversion time is reduced

through the serial clock speed increase. These parts also

feature a shutdown mode to maximize power efficiency at

lower throughput rates.

The conversion process and data acquisition are controlled

using CS and the serial clock, allowing the device to interface

with microprocessors or DSPs. The input signals are sampled

on the falling edge of CS; the conversion is also initiated at

this point.

5. Variable Voltage Reference Input.

6. No Pipeline Delay.

7. Accurate control of the sampling instant via a CS input and

once-off conversion control.

8. ENOB > 10-bits Typically with 500 mV Reference.

The SAR architecture of these parts ensures that there are no

pipeline delays.

The AD7441/AD7451 use advanced design techniques to

achieve very low power dissipation at high throughput rates.

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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat

may result from its use. 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 companies.

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

Tel: 781/329-4700

Fax: 781/326-8703

www.analog.com

12 3 4 5 6 7...20

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AD7451ART-R2 替代型号

型号	品牌	替代类型	描述	数据表
AD7451ARTZ-REEL7	ADI	完全替代	Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23
AD7091BCPZ-RL7	ADI	类似代替	1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP
AD7091BCPZ-RL	ADI	类似代替	1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP

与AD7451ART-R2相关器件

型号	品牌	获取价格	描述	数据表
AD7451ART-REEL7	ROCHESTER	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO8, MO-178BA,
AD7451ARTZ-REEL7	ADI	获取价格	Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23
AD7451BRM	ADI	获取价格	Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23
AD7451BRM-REEL7	ROCHESTER	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO8, MO-187AA,
AD7451BRMZ	ADI	获取价格	Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23
AD7451BRT	ADI	获取价格	Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23
AD7451BRT-R2	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN
AD7451BRT-R2	ROCHESTER	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO8, MO-178BA,
AD7451BRT-REEL7	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN
AD7451BRT-REEL7	ROCHESTER	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO8, MO-178BA,

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