Datasheet > AD7961BCPZ

AD7961BCPZ

更新时间： 2024-01-25 14:30:24

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
25页	616K
描述
16-Bit, 5 MSPS PULSAR® Differential ADC

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AD7961BCPZ 数据手册

16-Bit, 5 MSPS PulSAR

Differential ADC

Data Sheet

AD7961

FEATURES

FUNCTIONAL BLOCK DIAGRAM

REFIN

REF VCM

VDD1 VDD2

VIO

Throughput: 5 MSPS

16-bit resolution with no missing codes

Excellent ac and dc performance

Dynamic range: 96 dB

EN0

EN1

÷2

CLOCK

EN2

LOGIC

EN3

SNR: 95.5 dB

THD: −116 dB

IN+

IN–

CAP

DAC

CNV+, CNV–

INL: 0.2 LSB (typical), 0.55 LSB (maximum)

DNL: 0.14 LSB (typical), 0.25 LSB (maximum)

True differential analog input voltage range: 4.096 V or 5 V

Low power dissipation

D+, D–

SERIAL

LVDS

SAR

DCO+, DCO–

CLK+, CLK–

AD7961

GND

46.5 mW at 5 MSPS with external reference buffer

(echoed clock mode)

Figure 1.

64.5 mW at 5 MSPS with internal reference buffer

(echoed clock mode)

39 mW at 5 MSPS with external reference buffer

(self clocked mode, CNV in CMOS mode)

SAR architecture

GENERAL DESCRIPTION

The AD7961 is a 16-bit, 5 MSPS, charge redistribution successive

approximation (SAR), analog-to-digital converter (ADC). The

SAR architecture allows unmatched performance both in noise

and in linearity. The AD7961 contains a low power, high speed,

16-bit sampling ADC, an internal conversion clock, and an

internal reference buffer. On the CNV edge, the AD7961

samples the voltage difference between the IN+ and IN− pins.

The voltages on these pins swing in opposite phase between 0 V

and 4.096 V and between 0 V and 5 V. The reference voltage is

applied to the part externally. All conversion results are available

on a single LVDS self clocked or echoed clock serial interface.

No latency/pipeline delay

External reference options: 2.048 V buffered to 4.096 V (internal

reference buffer), 4.096 V, and 5 V

Serial LVDS interface

Self clocked mode

Echoed clock mode

LVDS or CMOS option for conversion control (CNV signal)

Operating temperature range of −40°C to +85°C

32-lead, 5 mm × 5 mm LFCSP (QFN)

The AD7961 is available in a 32-lead LFCSP (QFN) with

operation specified from −40°C to +85°C.

APPLICATIONS

Table 1. Fast PulSAR® ADC Selection

Digital imaging systems

Digital X-rays

Computed tomography

IR cameras

MRI gradient control

High speed data acquisition

Spectroscopy

1 MSPS to

<2 MSPS

2 MSPS to

3 MSPS

5 MSPS

to 6 MSPS 10 MSPS

Input Type

Pseudo-

Differential,

16-Bit

AD7653

AD7667

AD7980

AD7983

AD7671

AD7985

True Bipolar,

16-Bit

Test equipment

Differential,¹

16-Bit

Differential,¹

18-Bit

AD7677

AD7623

AD7643

AD7982

AD7984

AD7621

AD7622

AD7641

AD7986

AD7625

AD7961

AD7960

AD7626

¹Antiphase.

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the 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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AD7961BCPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7626BCPZ	ADI	类似代替	16-Bit, 10 MSPS, PulSAR Differential ADC

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