Datasheet > ADAS1127

ADAS1127

更新时间： 2024-02-20 17:23:35

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
2页	48K
描述
64-Channel,24-Bit Current-to-Digital ADC

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中文翻译

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数据手册

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ADAS1127 数据手册

64-Channel, 24-Bit Current-to-Digital ADC

ADAS1127

FEATURES

GENERAL DESCRIPTION

64-channel, low level current-to-digital converter

Up to 24-bit resolution

Up to 19.7 kSPS (50.7 μs integration time)

Simultaneous sampling

Ultralow noise (down to 0.4 fC [2500e⁻])

User-adjustable full-scale range

INL: 0.025ꢀ of reading 0.75 ppm of FSR

Very low power dissipation: 6.25 mW/channel

LVDS self-clocked serial data interface

SPI configuration registers (daisy-chain)

The ADAS1127 is a 64-channel, current-to-digital, analog-to-

digital converter (ADC). It contains 64 low power, low noise,

low input current integrators, simultaneous sample-and-holds,

and a high speed, high resolution ADCs with configurable

sampling rate and resolutions up to 24 bits.

All converted channel results are output on a single LVDS self-

clocked serial interface, which reduces external hardware.

An SPI-compatible serial interface allows configuration of the

ADC using the SDI input. The SDO output allows the user to

On-board temperature sensor and reference buffer

10 mm × 10 mm, mini-BGA package

Low cost external components

Support tools

Evaluation board

Reference design with reference layout

FPGA Verilog code

daisy-chain several ADCs on a single, 3-wire bus. The

ADAS1127 uses the separate supply IOVDD to reduce the

digital noise effect on the conversions.

The ADAS1127 is in a 10 mm × 10 mm, mini-BGA package.

For more information on the ADAS1127, contact Analog

Devices, Inc, at adas@analog.com.

APPLICATIONS

Medical, industrial, and security CT scanner data acquisition

Photodiode sensors

Dosimetry and radiation therapy systems

Optical fiber power monitoring

X-ray detection systems

High channel-count data acquisition systems (current or

voltage inputs)

FUNCTIONAL BLOCK DIAGRAM

TO NEXT

SDI

2.5V

3.3V

TO ALL ADCs

SDO

SCK

AN0

CONFIGURATION

SDI

S/H

RESET

OR0

AN31

S/H

OR31

DOUTx

CLKx

SYNC

FPGA

LVDS/CMOS

INTERFACE

DATA

PROCESSING

ADCL

–

AN32

S/H

OR[0:63]

2.5V

IOVDD

IOGND

OR32

VIO

TEMPERATURE

ADAS1127

AN63

S/H

OR63

SDI

KGND

BUFP

BUFN

REF

SDI

2.048V

FROM DOUT

OF OTHER ADCs

FROM

SDO

Figure 1.

Rev. Sp0

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

中文翻译

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与ADAS1127相关器件

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