Datasheet > AD7451ARM-REEL7

AD7451ARM-REEL7

更新时间： 2024-09-18 03:35:27

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		光电二极管
页数	文件大小	规格书
24页	2965K
描述
ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, PDSO8, MO-187AA, MSOP-8

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AD7451ARM-REEL7 数据手册

Pseudo Differential Input, 1 MSPS,

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

AD7441/AD7451

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Fast throughput rate: 1 MSPS

Specified for V_DDof 2.7 V to 5.25 V

Low power at maximum throughput rate:

4 mW maximum at 1 MSPS with V_DD= 3 V

9.25 mW maximum 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

SCLK

High speed serial interface:

SDATA

AD7441/AD7451

CONTROL LOGIC

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

Power-down mode: 1 μA maximum

8-lead SOT-23 and MSOP packages

APPLICATIONS

GND

Transducer interface

Figure 1.

Battery-powered systems

Data acquisition systems

Portable instrumentation

PRODUCT HIGHLIGHTS

GENERAL DESCRIPTION

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

The AD7441/AD7451¹are, respectively, 10-/12-bit high speed,

low power, single-supply, successive approximation (SAR),

analog-to-digital converters (ADCs) 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 maxi-

mum 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.

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

7. Accurate Control of Sampling Instant via

Once-Off Conversion Control.

Input and

on the falling edge of

The SAR architecture of these parts ensures that there are no

pipeline delays.

when the conversion is initiated.

8. ENOB > 10 Bits Typically with 500 mV Reference.

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

Rev. C

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

www.analog.com

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与AD7451ARM-REEL7相关器件

型号	品牌	获取价格	描述	数据表
AD7451ARMZ	ADI	获取价格	Pseudo Differential Input, 1 MSPS, 10-/12-Bit ADCs in an 8-Lead SOT-23
AD7451ART-R2	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN
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,

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