Datasheet > AD7451BRTZ-REEL7

AD7451BRTZ-REEL7

更新时间： 2024-11-23 15:46:39

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
24页	468K
描述
IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, ROHS COMPLIANT, MO-178BA, SOT-23, 8 PIN, Analog to Digital Converter

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AD7451BRTZ-REEL7 数据手册

Pseudo Differential Input, 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:

IN+

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

T/H

IN–

REF

70 dB SINAD at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

High speed serial interface:

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

SCLK

SDATA

AD7441/AD7451

CONTROL LOGIC

Power-down mode: 1 µA max

8-lead SOT-23 and MSOP packages

APPLICATIONS

GND

Transducer interface

Figure 1.

Battery-powered systems

Data acquisition systems

Portable instrumentation

GENERAL DESCRIPTION

PRODUCT HIGHLIGHTS

1. Operation with 2.7 V to 5.25 V power supplies.

The AD7441/AD7451¹are, 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 achieve very low power dissipation at high throughput rates

of up to 1 MSPS.

2. High throughput with low power consumption. With a 3 V

supply, the AD7441/AD7451 offer 4 mW maximum power

consumption for a 1 MSPS throughput rate.

3. Pseudo differential analog input.

4. Flexible power/serial clock speed management. The

conversion rate is determined by the serial clock, allowing

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 AD7441/AD7451 contain a low noise, wide bandwidth,

differential track-and-hold (T/H) amplifier that handles input

frequencies up to 3.5 MHz. The reference voltage for these

devices is applied externally to the V_REFpin and can range from

100 mV to V_DD, depending on the power supply and what suits

the application.

5. Variable voltage reference input.

6. No pipeline delays.

7. Accurate control of the sampling instant via a

once-off conversion control.

input and

The conversion process and data acquisition are controlled

using

with microprocessors or DSPs. The input signals are sampled

and the serial clock, allowing the device to interface

8. ENOB > 10 bits typically with 500 mV reference.

on the falling edge of

when the conversion is initiated.

The SAR architecture of these parts ensures that there are no

pipeline delays.

¹Protected by U.S. Patent Number 6,681,332.

Rev. B

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.

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

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与AD7451BRTZ-REEL7相关器件

型号	品牌	获取价格	描述	数据表
AD7452	ADI	获取价格	Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7452_17	ADI	获取价格	Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7452BRT	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOT-23, 8 PIN, Analog t
AD7452BRT-R2	ADI	获取价格	Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7452BRT-REEL	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOT-23, 8 PIN, Analog t
AD7452BRT-REEL7	ADI	获取价格	Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7452BRTZ-R2	ADI	获取价格	Differential Input, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23
AD7452BRTZ-REEL7	ADI	获取价格	Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7453	ADI	获取价格	Pseudo Differential, 555 kSPS, 12-Bit ADC in an 8-Lead SOT-23
AD7453ART-REEL7	ADI	获取价格	Pseudo Differential, 555 kSPS, 12-Bit ADC in an 8-Lead SOT-23

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