Datasheet > AD7452_17

AD7452_17

更新时间： 2024-11-24 01:16:27

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
25页	639K
描述
Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23

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AD7452_17 数据手册

Differential Input, 555 kSPS

12-Bit ADC in an 8-Lead SOT-23

Data Sheet

AD7452

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Specified for V_DDof 3 V and 5 V

Low power at max throughput rate

3.3 mW max at 555 kSPS with 3 V supplies

7.25 mW max at 555 kSPS with 5 V supplies

Fully differential analog input

IN+

12-BIT

SUCCESSIVE

APPROXIMATION

ADC

T/H

Wide input bandwidth

IN–

70 dB SINAD at 100 kHz input frequency

Flexible power/serial clock speed management

No pipeline delays

REF

High speed serial interface

SCLK

SPI/QSPI™/MICROWIRE™/DSP compatible

Power-down mode: 1 μA max

8-lead SOT-23 package

SDATA

AD7452

CONTROL LOGIC

APPLICATIONS

Transducer interface

Battery-powered systems

Data acquisition systems

Portable instrumentation

Motor control

GND

Figure 1.

The SAR architecture of this part ensures that there are no

pipeline delays.

GENERAL DESCRIPTION

The AD7452 uses advanced design techniques to achieve very

low power dissipation.

The AD7452¹is a 12-bit, high speed, low power, successive

approximation (SAR) analog-to-digital converter that features a

fully differential analog input. This part operates from a single

3 V or 5 V power supply and features throughput rates up to

555 kSPS.

PRODUCT HIGHLIGHTS

1. Operation with Either 3 V or 5 V Power Supplies.

2. High Throughput with Low Power Consumption. With a

3 V supply, the AD7452 offers 3.3 mW max power

consumption for 555 kSPS throughput.

The part contains a low noise, wide bandwidth, differential

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

frequencies up to 3.5 MHz. The reference voltage is applied

externally to the V_REFpin and can be varied from 100 mV to

3.5 V depending on the power supply and what suits the

application. The value of the reference voltage determines the

common-mode voltage range of the part. With this truly

differential input structure and variable reference input, the

user can select a variety of input ranges and bias points.

3. Fully 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. This part also

features a shutdown mode to maximize power efficiency at

lower throughput rates.

5. Variable Voltage Reference Input.

6. No Pipeline Delay.

The conversion process and data acquisition are controlled

7. Accurate Control of the Sampling Instant via a

and Once-Off Conversion Control.

Input

using

and the serial clock, allowing the device to interface

with microprocessors or DSPs. The input signals are sampled

8. ENOB > 8 Bits Typically with 100 mV Reference.

on the falling edge of , and the conversion is also initiated at

this point.

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

Rev. C

Document Feedback

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.

Technical Support

www.analog.com

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与AD7452_17相关器件

型号	品牌	获取价格	描述	数据表
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
AD7453ARTZ-REEL7	ADI	获取价格	1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MO-178BA, SOT-23, 8 PIN
AD7453BRM	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MSOP-8, Analog to Digit

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