Datasheet > AD4112BCPZ-RL7

AD4112BCPZ-RL7

更新时间： 2024-10-15 01:14:59

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
58页	1009K
描述
Single Supply, 24-Bit, Sigma-Delta ADC

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数据手册

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AD4112BCPZ-RL7 数据手册

Single Supply, 24-Bit, Sigma-Delta ADC

with 10 V and 0 mA to 20 mA Inputs

Data Sheet

AD4112

FEATURES

GENERAL DESCRIPTION

Tested for robustness per: IEC61000-4-2, IEC61000-4-3,

IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, CISPR 11

24-bit ADC with integrated analog front end

Fast and flexible output rate: 1.25 SPS to 31.25 kSPS

Channel scan data rate of 6.21 kSPS per channel

(161 µs settling)

The AD4112 is a low power, low noise, 24-bit, sigma-delta (Σ-Δ)

analog-to-digital converter (ADC) that integrates an analog front

end (AFE) for fully differential or single-ended, high impedance

(≥1 MΩ) bipolar, 10 V voltage inputs, and 0 mA to 20 mA

current inputs.

The AD4112 also integrates key analog and digital signal

conditioning blocks to configure eight individual setups for

each analog input channel in use. The AD4112 features a

maximum channel scan rate of 6.21 kSPS (161 µs) for fully

settled data.

16 noise free bits at 1 kSPS per channel

85 dB rejection of 50 Hz and 60 Hz at 20 SPS per channel

10 V inputs, 4 differential or 8 single-ended

Pin absolute maximum rating 50 V

Overrange up to 20 V

The embedded 2.5 V, low drift (5 ppm/°C), band gap internal

reference (with output reference buffer) reduces the external

component count.

≥1 MΩ impedance

0.06% accuracy at 25°C

0 mA to 20 mA inputs, 4 single-ended

Pin absolute maximum rating 50 mA

Overrange from −0.5 mA to +24 mA

60 Ω impedance

0.08% accuracy at 25°C

On-chip 2.5 V reference

0.12% accuracy at 25°C, 5 ppm/°C (typical) drift

Internal or external clock

Power supplies

The digital filter allows flexible settings, including simultaneous

50 Hz and 60 Hz rejection at a 27.27 SPS output data rate. The

user can select between the different filter settings depending on

the demands of each channel in the application. The automatic

channel sequencer enables the ADC to switch through each

enabled channel.

The precision performance of the AD4112 is achieved by

integrating the proprietary iPassives™ technology from Analog

Devices, Inc. The AD4112 is factory calibrated to achieve a high

degree of specified accuracy.

AVDD = 3.0 V to 5.5 V

IOVDD = 2 V to 5.5 V

Total IDD = 3.9 mA

The AD4112 operates with a single power supply, making it easy to

use in galvanically isolated applications. The specified operating

temperature range is −40°C to +105°C. The AD4112 is housed

in a 40-lead, 6 mm × 6 mm LFCSP package.

Temperature range: −40°C to +105°C

3-wire or 4-wire serial digital interface (Schmitt trigger on SCLK)

SPI, QSPI, MICROWIRE, and DSP compatible

APPLICATIONS

Process control

PLC and DCS modules

Instrumentation and measurement

Rev. A

Document Feedback

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

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AD4115BCPZ-RL7	ADI	获取价格	Single-Supply, Multichannel, 125 kSPS, 24-Bit
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