Datasheet > AD7688BCPRL7

AD7688BCPRL7

更新时间： 2024-09-16 20:05:15

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
28页	421K
描述
IC 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, 3 X 3 MM, QFN-10, Analog to Digital Converter

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AD7688BCPRL7 数据手册

16-Bit, 1.5 LSB INL, 500 kSPS PulSAR™

Differential ADC in MSOP/QFN

AD7688

APPLICATION DIAGRAM

FEATURES

0.5V TO 5V

16-bit resolution with no missing codes

Throughput: 500 kSPS

INL: ±0.4 LSB typ, ±1.5 LSB max (±23 ppm of FSR)

Dynamic range: 96.5 dB

SNR: 95.5 dB @ 20 kHz

THD: −118 dB @ 20 kHz

True differential analog input range

±±_REF

VREF

VIO

SDI

1.8V TO VDD

REF VDD

IN+

IN–

SCK

SDO

CNV

AD7688

3- OR 4-WIRE INTERFACE

(SPI, DAISY CHAIN, CS)

VREF

GND

0 ± to ±_REFwith ±_REFup to ±DD on both inputs

No pipeline delay

Figure 2.

Single-supply 5 ± operation with

1.8 ±/2.5 ±/3 ±/5 ± logic interface

Serial interface SPI®/QSPI™/MICROWIRE™/DSP-compatible

Daisy-chain multiple ADCs and BUSY indicator

Power dissipation

Table 1. MSOP, QFN (LFCSP)/SOT-23 16-Bit PulSAR ADC

Type

100 kSPS

AD7684

AD7683

250 kSPS

AD7687

AD7685

AD7694

500 kSPS

AD7688

AD7686

True Differential

Pseudo

Differential/Unipolar

Unipolar

3.75 mW @ 5 ±/100 kSPS

3.75 μW @ 5 ±/100 SPS

AD7680

Standby current: 1 nA

10-lead MSOP (MSOP-8 size) and

3 mm × 3 mm QFN (LFCSP) (SOT-23 size)

Pin-for-pin compatible with AD7685, AD7686, and AD7687

GENERAL DESCRIPTION

The AD7688 is a 16-bit, charge redistribution, successive

approximation, analog-to-digital converter (ADC) that operates

from a single 5 V power supply, VDD. It contains a low power,

high speed, 16-bit sampling ADC with no missing codes, an

internal conversion clock, and a versatile serial interface port.

The part also contains a low noise, wide bandwidth, short

aperture delay track-and-hold circuit. On the CNV rising edge,

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

The voltages on these pins usually swing in opposite phase

between 0 V and REF. The reference voltage, REF, is applied

externally and can be set up to the supply voltage.

APPLICATIONS

Battery-powered equipment

Data acquisitions

Instrumentation

Medical instruments

Process controls

1.5

POSITIVE INL = +0.31LSB

NEGATIVE INL = –0.39LSB

1.0

Its power scales linearly with throughput.

0.5

The SPI-compatible serial interface also features the ability,

using the SDI input, to daisy-chain several ADCs on a single,

3-wire bus and provides an optional BUSY indicator. It is

compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic, using the separate

supply VIO.

–0.5

The AD7688 is housed in a 10-lead MSOP or a 10-lead QFN

(LFCSP) with operation specified from −40°C to +85°C.

–1.0

–1.5

16384

32768

CODE

49152

65535

Figure 1. Integral Nonlinearity vs. Code

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

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与AD7688BCPRL7相关器件

型号	品牌	获取价格	描述	数据表
AD7688BCPWP	ADI	获取价格	IC 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, 3 X 3 MM, QFN-10, Anal
AD7688BCPZRL	ADI	获取价格	16-Bit, 1.5 LSB INL, 500 kSPS PulSAR Differential ADC in MSOP/QFN
AD7688BCPZRL7	ADI	获取价格	16-Bit, 1.5 LSB INL, 500 kSPS PulSAR Differential ADC in MSOP/QFN
AD7688BRM	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, MO-187BA, MSOP-10
AD7688BRMRL7	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, MO-187BA, MSOP-10
AD7688BRMRL7	ADI	获取价格	16-Bit, 1.5 LSB INL, 500 kSPS PulSAR Differential ADC in MSOP/QFN
AD7688BRMZ	ADI	获取价格	16-Bit, 1.5 LSB INL, 500 kSPS PulSARâ¢ Diffe
AD7688BRMZRL7	ADI	获取价格	16-Bit, 1.5 LSB INL, 500 kSPS PulSAR Differential ADC in MSOP/QFN
AD7689	ADI	获取价格	16-Bit, 8-Channel, 250 kSPS PulSAR㈢ ADC.
AD7689ACPZ	ADI	获取价格	16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC

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