AD7634BSTZ

更新时间： 2024-11-05 12:52:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	601K
描述
18-Bit, 670 kSPS, Differential Programmable Input PulSARÂ® ADC

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AD7634BSTZ 数据手册

18-Bit, 670 kSPS, Differential

Programmable Input PulSAR^®ADC

AD7634

Data Sheet

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

670 kSPS (warp mode)

570 kSPS (normal mode)

450 kSPS (impulse mode)

OVDD

AGND

AD7634

REF

OGND

AVDD

PDREF

PDBUF

IN+

AMP

SERIAL DATA

PORT

REF

SERIAL

CONFIGURATION

PORT

SWITCHED

CAP DAC

D[17:0]

BUSY

IN–

PARALLEL

INTERFACE

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

CLOCK

CNVST

D0/OB/2C

D1/A0

CONTROL LOGIC AND

CALIBRATION CIRCUITRY

RESET

SNR: 101 dB @ 2 kHz

D2/A1

THD: −112 dB @ 2kHz

WARP IMPULSE BIPOLAR TEN

iCMOS® process technology

MODE0

MODE1

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

Figure 1.

Table 1. 48-Lead PulSAR Selection

100 to

250

500 to

570

570 to

1000

(kSPS)

Res

>1000

(kSPS)

Input Type

(Bits) (kSPS)

(kSPS)

180 mW @ 670 kSPS, warp mode

28 mW @ 100 kSPS, impulse mode

10 mW @ 1 kSPS, impulse mode

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

Bipolar

AD7951

AD7952

Differential

Bipolar

Unipolar

AD7651

AD7660

AD7661

AD7650

AD7652

AD7664

AD7666

AD7653

AD7667

APPLICATIONS

CT scanners

High dynamic data acquisition

Σ-Δ replacement

Spectrum analysis

Medical instruments

Instrumentation

Bipolar

AD7610

AD7663

AD7665

AD7612

AD7671

Differential

Unipolar

AD7675

AD7676

AD7677

AD7621

AD7622

AD7623

Simultaneous/

Multichannel

Unipolar

AD7654

AD7655

Process controls

GENERAL DESCRIPTION

Differential

Unipolar

AD7678

AD7631

AD7679

AD7674

AD7634

AD7641

AD7643

The AD7634 is an 18-bit charge redistribution successive

approximation register (SAR), architecture analog-to-

Differential

Bipolar

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 AD7634 contains a

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

an internal reference (and buffer), error correction circuits, and

both serial and parallel system interface ports. A falling edge on

CNVST

samples the fully differential analog inputs on IN+ and

IN−. The AD7634 features four different analog input ranges and

three different sampling modes. Operation is specified from

−40°C to +85°C.

Rev. B

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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AD7634BSTZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7634BSTZRL	ADI	完全替代	18-Bit, 670 kSPS, Differential Programmable Input PulSAR® ADC

与AD7634BSTZ相关器件

型号	品牌	获取价格	描述	数据表
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
AD7641ACPRL	ADI	获取价格	18-Bit, 2 MSPS SAR ADC
AD7641AST	ADI	获取价格	18-Bit, 2 MSPS SAR ADC
AD7641ASTRL	ADI	获取价格	18-Bit, 2 MSPS SAR ADC
AD7641BCPZ	ADI	获取价格	18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC
AD7641BCPZ	ROCHESTER	获取价格	1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, QCC48, 7 X 7 MM, LEAD FR
AD7641BCPZRL	ADI	获取价格	18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC
AD7641BSTZ	ADI	获取价格	18-Bit 250/670 kSPS PulSAR Bipolar Programmable Inputs ADC

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