Datasheet > AD7988-1

AD7988-1

更新时间： 2024-09-13 07:18:51

品牌	Logo	应用领域
亚德诺 - ADI		/
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24页	463K
描述
16-Bit Lower Power

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AD7988-1 数据手册

16-Bit Lower Power

PulSAR ADCs in MSOP/LFCSP (QFN)

Data Sheet

AD7988-1/AD7988-5

FEATURES

GENERAL DESCRIPTION

Low power dissipation

AD7988-5: 3.5 mW @ 500 kSPS

AD7988-1: 700 µW @ 100 kSPS

16-bit resolution with no missing codes

Throughput: 100 kSPS/500 kSPS options

INL: 0.6 LSB typical, 1.25 LSB maximum

SINAD: 91.5 dB @ 10 kHz

The AD7988-1/AD7988-5 are 16-bit, successive approximation,

analog-to-digital converters (ADC) that operate from a single

power supply, VDD. The AD7988-1 offers a 100 kSPS throughput,

and the AD7988-5 offers a 500 kSPS throughput. They are low

power, 16-bit sampling ADCs with a versatile serial interface

port. On the CNV rising edge, they sample an analog input,

IN+, between 0 V to V_REFwith respect to a ground sense, IN−.

The reference voltage, REF, is applied externally and can be set

independent of the supply voltage, VDD.

THD: −114 dB @ 10 kHz

Pseudo differential analog input range

0 V to V_REFwith V_REFfrom 2.5 V to 5.5 V

Any input range and easy to drive with the ADA4841-1

No pipeline delay

Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V

logic interface

The SPI-compatible serial interface also features the ability to

daisy-chain several ADCs on a single 3-wire bus using the SDI

input. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using

the separate supply, VIO.

The AD7988-1/AD7988-5 generics are housed in a 10-lead

MSOP or a 10-lead LFCSP (QFN) with operation specified

from −40°C to +125°C.

SPI-/QSPI-/MICROWIRE™-/DSP-compatible serial interface

Daisy-chain multiple ADCs

10-lead MSOP and 10-lead, 3 mm × 3 mm LFCSP (QFN),

same space as SOT-23

Table 1. MSOP, LFCSP (QFN) 14-/16-/18-Bit PulSAR® ADCs

Wide operating temperature range: −40°C to +125°C

400 kSPS to

500 kSPS

AD7690²

≥1000

kSPS

AD7982²ADA4941-1

AD7984²ADA4841-1

ADA4941-1

Bits

100 kSPS

250 kSPS

ADC Driver

APPLICATIONS

18¹

AD7691²

Battery-powered equipment

Low power data acquisition systems

Portable medical instruments

ATE equipment

Data acquisitions

Communications

16¹

16³

AD7684

AD7687²

AD7688²

AD7693²

AD7686²

AD7988-5²

ADA4841-1

AD7680

AD7683

AD7988-1²

AD7940

AD7685²

AD7694

AD7980²ADA4841-1

ADA4841-1

14³

AD7942²

AD7946²

ADA4841-1

¹True differential.

²Pin-for-pin compatible.

³Pseudo differential.

TYPICAL APPLICATION DIAGRAM

2.5V TO 5V 2.5V

VIO

SDI

1.8V TO 5.5V

REF VDD

0V TO V

REF

^IN+AD7988-1/ _SCK

3- OR 4-WIRE INTERFACE

(SPI, DAISY CHAIN, CS)

_IN–AD7988-5

SDO

GND

CNV

Figure 1.

Rev. B

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 registered trademarks are the 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

12 3 4 5 6 7...24

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与AD7988-1相关器件

型号	品牌	获取价格	描述	数据表
AD7988-1_1208	ADI	获取价格	16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP (QFN)
AD7988-1_17	ADI	获取价格	16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP
AD7988-1BCPZ-RL	ADI	获取价格	16-Bit Lower Power
AD7988-1BCPZ-RL7	ADI	获取价格	16-Bit Lower Power
AD7988-1BRMZ	ADI	获取价格	16-Bit Lower Power
AD7988-1BRMZ-RL7	ADI	获取价格	16-Bit Lower Power
AD7988-5	ADI	获取价格	16-Bit Lower Power
AD7988-5BCPZ-RL	ADI	获取价格	16-Bit Lower Power
AD7988-5BCPZ-RL7	ADI	获取价格	16-Bit Lower Power
AD7988-5BRMZ	ADI	获取价格	16-Bit Lower Power

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