Datasheet > AD7456BRT

AD7456BRT

更新时间： 2024-11-26 21:01:31

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
8页	228K
描述
IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOT-23, 8 PIN, Analog to Digital Converter

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数据手册

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AD7456BRT 数据手册

PRELIMINARY TECHNICAL DATA

Differential Input, 100kSPS,

PreliminaryTechnicalData

12-BitADCin8-leadSOT-23

AD7456

FEATU RES

F U NC T IO NAL B LO C K D IAG RAM

Specified for V_DDof 3 V and 5 V

Ve ry Lo w Po w e r:

TBD m W t yp a t 100kS PS w it h 3 V S u p p lie s

TBD m W t yp a t 100kS PS w it h 5 V S u p p lie s

Fu lly Diffe re n t ia l An a lo g In p u t

Wid e In p u t Ba n d w id t h :

12-BIT SUCCESSIVE

IN+

70d B S INAD a t 20kHz In p u t Fre q u e n cy

No Pip e lin e De la ys

APPROXIMATION

T/H

ADC

IN-

S e ria l In t e rfa ce - S PI^TM/ QS PI^TM/ MICROWIRE^TM

DS P Co m p a t ib le

REF

Au t o m a t ic Po w e r-Do w n Mo d e

8 Pin S OT-23 a n d µS OIC Pa cka g e

SCLK

AP P LICATIO N S

Tra n s d u c e r In t e rfa c e

Battery Pow ered System s

Data Acquisition System s

Portable Instrum entation

Motor Control

SDATA

CONTROL

LOGIC

AD7456

Co m m u n ic a t io n s

GND

G E NE R AL D E S C R IP T IO N

powered up on the falling edge of CS and a conversion is

initiated on the rising edge of CS, where the analog input

is sampled. Once a conversion is complete, the device

automatically enters a power down mode to reduce power

dissipation between conversions.

T he AD7456 is a 12-bit, low power, successive-approxi-

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

fully differential analog input. T his part operates from a

single 3 V or 5 V power supply and features throughput

rates up to 100kSPS.

T he SAR architecture of this part ensures that there are

no pipeline delays.

T he part contains a low-noise, wide bandwidth, differen-

tial track and hold amplifier (T /H) which can handle

input frequencies in excess of 1MHz with the -3dB point

being 20MH z typically. T he 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. T he 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.

P R O D U C T H IG H LIG H T S

1.Operation with either 3 V or 5 V power supplies.

2.Low Power Consumption.

With a 3V supply, the AD7456 offer T BDmW

typ power consumption for 100kSPS throughput.

3.Fully D ifferential Analog Input.

4.Variable Voltage Reference Input.

5.N o Pipeline D elay.

6.Accurate control of the sampling instant via a CS input

and once off conversion control.

7.8-lead SOT -23 package.

T he conversion process and data acquisition are controlled

using CS and the serial clock allowing the device to inter-

face with Microprocessors or DSPs. T he device is

8. ENOB > 8 bits typically with 100mV reference.

MICROWIRE is a trademark of National Semiconductor Corporation.

SPI and QSPI are trademarks of Motorola, Inc.

REV. PrA 24/05/02

Inform ation furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assum ed by Analog Devices for its

use, nor for any infringem ents of patents or other rights of third parties

which m ay result from its use. No license is granted by im plication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/ 329-4700

Fax: 781/ 326-8703

w w w .analog.com

12 3 4 5 6 7 8

中文翻译

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与AD7456BRT相关器件

型号	品牌	获取价格	描述	数据表
AD7457	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7457_05	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS
AD7457BRM	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MICRO, SOIC-8, Analog t
AD7457BRT	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7457BRT-R2	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7457BRT-REEL	ADI	获取价格	IC 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, SOT-23, 8 PIN, Analog t
AD7457BRT-REEL7	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD7457BRTZ-REEL7	ADI	获取价格	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23
AD745AN	ADI	获取价格	Ultralow Noise, High Speed, BiFET Op Amp
AD745AN	ROCHESTER	获取价格	OP-AMP, 1500 uV OFFSET-MAX, 20 MHz BAND WIDTH, PDIP8, MINI, PLASTIC, DIP-8

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