AD7631BCPZ

更新时间： 2024-09-13 12:48:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	681K
描述
18-Bit, 250 kSPS, Differential Programmable Input PulSARÂ® ADC

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AD7631BCPZ 数据手册

18-Bit, 250 kSPS, Differential

Programmable Input PulSAR^®ADC

AD7631

FEATURES

FUNCTIONAL BLOCK DIAGRAM

TEMP REFBUFIN REF REFGND VCC VEE DVDD DGND

Multiple pins/software-programmable input ranges

+5 V (10 V p-p), +10 V (20 V p-p), 5 V (20 V p-p),

10 V (40 V p-p)

Pins or serial SPI-compatible input ranges/mode selection

Throughput: 250 kSPS

INL: 1.5 LSB typical, 2.5 LSB maximum ( 9.5 ppm of FSR)

18-bit resolution with no missing codes

Dynamic range: 102.5 dB

OVDD

AGND

AD7631

REF

OGND

AVDD

PDREF

PDBUF

IN+

AMP

SERIAL DATA

PORT

REF

SERIAL

CONFIGURATION

PORT

SWITCHED

CAP DAC

D[17:0]

BUSY

IN–

PARALLEL

INTERFACE

SNR: 101 dB @ 2 kHz

THD: −112 dB @ 2 kHz

iCMOS® process technology

5 V internal reference: typical drift 3 ppm/°C; TEMP output

No pipeline delay (SAR architecture)

Parallel (18-/16-/8-bit bus) and serial 5 V/3.3 V interface

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

Power dissipation

CLOCK

CNVST

D0/OB/2C

D1/A0

CONTROL LOGIC AND

CALIBRATION CIRCUITRY

RESET

D2/A1

BIPOLAR TEN

MODE0

MODE1

Figure 1.

Table 1. 48-Lead PulSAR Selection

73 mW @ 250 kSPS

10 mW @ 1 kSPS

Pb-free, 48-lead LQFP and 48-lead LFCSP (7 mm × 7 mm)

100 to

250

(kSPS)

500 to

570

570 to

1000

Res

(Bits)

>1000

(kSPS)

Input Type

(kSPS)

Bipolar

AD7951

AD7952

APPLICATIONS

Process controls

High speed data acquisition

Digital signal processing

Spectrum analysis

ATE

Differential

Bipolar

Unipolar

AD7651

AD7660

AD7661

AD7650

AD7652

AD7664

AD7666

AD7653

AD7667

GENERAL DESCRIPTION

Bipolar

AD7610

AD7663

AD7665

AD7612

AD7671

The AD7631 is an 18-bit, charge redistribution, successive

approximation register (SAR), architecture analog-to-digital

converter (ADC) fabricated on Analog Devices, Inc.’s iCMOS

high voltage process. The device is configured through hardware

or via a dedicated write-only serial configuration port for input

range and operating mode. The AD7631 contains a high speed

18-bit sampling ADC, an internal conversion clock, an internal

reference (and buffer), error correction circuits, and both serial

Differential

Unipolar

AD7675

AD7676

AD7677

AD7621

AD7622

AD7623

Simultaneous/

AD7654

AD7655

Multichannel

Unipolar

Differential

Unipolar

AD7678

AD7631

AD7679

AD7674

AD7634

AD7641

AD7643

CNVST

and parallel system interface ports. A falling edge on

Differential

Bipolar

samples the fully differential analog inputs on IN+ and IN−.

The AD7631 features four different analog input ranges. Power is

scaled linearly with throughput. Operation is specified from

−40°C to +85°C.

Rev. A

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

12 3 4 5 6 7...32

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AD7631BCPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7631BCPZRL	ADI	类似代替	18-Bit, 250 kSPS, Differential Programmable I
AD7631BSTZRL	ADI	功能相似	18-Bit, 250 kSPS, Differential Programmable I

与AD7631BCPZ相关器件

型号	品牌	获取价格	描述	数据表
AD7631BCPZRL	ADI	获取价格	18-Bit, 250 kSPS, Differential Programmable I
AD7631BSTZ	ADI	获取价格	18-Bit, 250 kSPS, Differential Programmable I
AD7631BSTZRL	ADI	获取价格	18-Bit, 250 kSPS, Differential Programmable I
AD7634	ADI	获取价格	18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC
AD7634BCPZ	ROCHESTER	获取价格	1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, ROHS CO
AD7634BCPZRL	ADI	获取价格	暂无描述
AD7634BSTZ	ADI	获取价格	18-Bit, 670 kSPS, Differential Programmable I
AD7634BSTZRL	ADI	获取价格	18-Bit, 670 kSPS, Differential Programmable Input PulSAR® ADC
AD7641	ADI	获取价格	18-Bit, 2 MSPS SAR ADC
AD7641ACP	ADI	获取价格	18-Bit, 2 MSPS SAR ADC

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