AD7682BCPZ

更新时间： 2024-10-28 06:36:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	828K
描述
16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC

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AD7682BCPZ 数据手册

16-Bit, 4-Channel/8-Channel,

250 kSPS PulSAR ADC

AD7682/AD7689

FEATURES

FUNCTIONAL BLOCK DIAGRAM

2.7V TO 5V

0.5V TO 4.096V

0.1µF

0.5V TO VDD

22µF

16-bit resolution with no missing codes

4-channel (AD7682)/8-channel (AD7689) multiplexer with

choice of inputs

REFIN

REF

VDD

Unipolar single ended

Differential (GND sense)

Pseudobipolar

Throughput: 250 kSPS

INL: 0.5 LSB typical, 1.5 LSB maximum ( 23 ppm or FSR)

Dynamic range: 93.8 dB

SINAD: 92.5 dB @ 20 kHz

THD: −100 dB @ 20 kHz

Analog input range: 0 V to V_REFwith V_REFup to VDD

Multiple reference types

1.8V

VDD

BAND GAP

VIO

REF

AD7682/

AD7689

TEMP

SENSOR

CNV

IN0

IN1

IN2

IN3

IN4

IN5

IN6

IN7

SCK

SDO

DIN

SPI SERIAL

INTERFACE

16-BIT SAR

ADC

MUX

ONE-POLE

LPF

SEQUENCER

COM

GND

Internal selectable 2.5 V or 4.096 V

External buffered (up to 4.096 V)

External (up to VDD)

Figure 1.

Table 1. Multichannel 14-/16-Bit PulSAR® ADC

Internal temperature sensor

Channel sequencer, selectable 1-pole filter, busy indicator

No pipeline delay, SAR architecture

Single-supply 2.7 V to 5.5 V operation with

1.8 V to 5 V logic interface

Type

Channels 250 kSPS

500 kSPS ADC Driver

14-Bit

16-Bit

AD7949

AD7682

AD7689

ADA4841-x

AD7699

Serial interface compatible with SPI, MICROWIRE,

QSPI, and DSP

Power dissipation

GENERAL DESCRIPTION

The AD7682/AD7689 are 4-channel/8-channel, 16-bit, charge

redistribution successive approximation register (SAR) analog-

to-digital converters (ADCs) that operate from a single power

supply, VDD.

3.5 mW @ 2.5 V/200 kSPS

12 mW @ 5 V/250 kSPS

Standby current: 50 nA

20-lead 4 mm × 4 mm LFCSP package

The AD7682/AD7689 contain all components for use in a

multichannel, low power data acquisition system, including a

true 16-bit SAR ADC with no missing codes; a 4-channel

(AD7682) or 8-channel (AD7689), low crosstalk multiplexer

useful for configuring the inputs as single ended (with or

without ground sense), differential, or bipolar; an internal low

drift reference (selectable 2.5 V or 4.096 V) and buffer; a

temperature sensor; a selectable one-pole filter; and a sequencer

that is useful when channels are continuously scanned in order.

APPLICATIONS

Battery-powered equipment

Medical instruments: ECG/EKG

Mobile communications: GPS

Personal digital assistants

Power line monitoring

Data acquisition

Seismic data acquisition systems

Instrumentation

Process control

The AD7682/AD7689 use a simple SPI interface for writing to

the configuration register and receiving conversion results. The

SPI interface uses a separate supply, VIO, which is set to the

host logic level. Power dissipation scales with throughput.

Each AD7682/AD7689 is housed in a tiny 20-lead LFCSP with

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

Rev. 0

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

Fax: 781.461.3113

www.analog.com

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AD7682BCPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD7682BCPZRL7	ADI	完全替代	16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
AD7689BCPZ	ADI	类似代替	16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
AD7689ACPZ	ADI	类似代替	16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC

与AD7682BCPZ相关器件

型号	品牌	获取价格	描述	数据表
AD7682BCPZRL7	ADI	获取价格	16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
AD7682BCPZRL7	ROCHESTER	获取价格	4-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, QCC20, 4 X 4 MM, ROHS COMPLIANT,
AD7683	ADI	获取价格	16-Bit, 100 kSPS PulSAR ADC in MSOP/QFN
AD7683_17	ADI	获取价格	16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN
AD7683ACPZRL	ADI	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, DSO8, 3 X 3 MM, ROHS COMPLIANT, L
AD7683ACPZRL7	ADI	获取价格	100 kSPS 16-BIT PulSAR® A/D Converter in µSOIC/QFN
AD7683ARM	ADI	获取价格	16-Bit, 100 kSPS PulSAR ADC in MSOP/QFN
AD7683ARMRL7	ADI	获取价格	16-Bit, 100 kSPS PulSAR ADC in MSOP/QFN
AD7683ARMZ	ADI	获取价格	16-Bit, 100 kSPS, Single-Ended PulSAR ADC in MSOP/QFN
AD7683ARMZRL7	ADI	获取价格	100 kSPS 16-BIT PulSAR® A/D Converter in µSOIC/QFN

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