AD7685ACPZRL

更新时间： 2024-11-30 12:33:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
28页	484K
描述
16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN

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AD7685ACPZRL 数据手册

16-Bit, 250 kSPS PulSAR

ADC in MSOP/QFN

AD7685

APPLICATION DIAGRAM

FEATURES

0.5V TO VDD

2.5V TO 5V

16-bit resolution with no missing codes

Throughput: 250 kSPS

INL: 0.6 LSB typical, 2 LSB maximum ( 0.003% of FSR)

SINAD: 93.5 dB @ 20 kHz

THD: −110 dB @ 20 kHz

Pseudo differential analog input range

0 V to V_REFwith V_REFup to VDD

VIO

1.8V TO VDD

REF VDD

0 TO VREF

SDI

SCK

SDO

CNV

IN+

AD7685

3- OR 4-WIRE INTERFACE

(SPI, DAISY CHAIN, CS)

IN–

GND

No pipeline delay

Single-supply operation 2.3 V to 5.5 V with

1.8 V to 5 V logic interface

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

Daisy-chain multiple ADCs, BUSY indicator

Power dissipation

1.4 μW @ 2.5 V/100 SPS

1.35 mW @ 2.5 V/100 kSPS, 4 mW @ 5 V/100 kSPS

Standby current: 1 nA

Figure 2.

Table 1. MSOP, QFN (LFCSP)/SOT-23

14-/16-/18-Bit PulSAR ADC

400 kSPS

500 kSPS kSPS

100

kSPS

250

1000

ADC

Driver

Type

kSPS

18-Bit True

Differential

16-Bit True

Differential

AD7691 AD7690

AD7982

AD7982 ADA4941

ADA4841

10-lead package: MSOP (MSOP-8 size) and

3 mm × 3 mm QFN (LFCSP) (SOT-23 size)

Pin-for-pin-compatible with 10-lead MSOP/QFN PulSAR® ADCs

AD7684 AD7687 AD7688

AD7693

ADA4941

ADA4841

16-Bit Pseudo AD7680 AD7685 AD7686

Differential AD7683 AD7694

AD7980 ADA4841

APPLICATIONS

14-Bit Pseudo AD7940 AD7942 AD7946

Differential

ADA4841

Battery-powered equipment

Medical instruments

Mobile communications

Personal digital assistants (PDAs)

Data acquisition

GENERAL DESCRIPTION

The AD7685 is a 16-bit, charge redistribution successive

Instrumentation

Process controls

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

from a single power supply, VDD, between 2.3 V to 5.5 V. 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 an analog input IN+ between 0 V to REF with

respect to a ground sense IN−. The reference voltage, REF, is

applied externally and can be set up to the supply voltage.

2.0

POSITIVE INL = +0.33LSB

NEGATIVE INL = –0.50LSB

1.5

1.0

0.5

Power dissipation scales linearly with throughput.

–0.5

–1.0

–1.5

–2.0

The SPI-compatible serial interface also features the ability,

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

3-wire bus or 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.

16384

32768

CODE

49152

65536

The AD7685 is housed in a 10-lead MSOP or a 10-lead QFN

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

Figure 1. Integral Nonlinearity vs. Code.

Rev. C

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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AD7685ACPZRL 替代型号

型号	品牌	替代类型	描述	数据表
AD7685CCPZRL7	ADI	完全替代	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BCPZRL7	ADI	完全替代	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685ACPZRL7	ADI	完全替代	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN

与AD7685ACPZRL相关器件

型号	品牌	获取价格	描述	数据表
AD7685ACPZRL7	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685ARM	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, MO-187BA, MSOP-10
AD7685ARMRL7	ROCHESTER	获取价格	1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10, MO-187BA, MSOP-10
AD7685ARMZ	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685ARMZRL7	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BCPZRL	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BCPZRL7	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BRM	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BRMZ	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN
AD7685BRMZRL7	ADI	获取价格	16-Bit, 250 kSPS PulSAR ADC in MSOP/QFN

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