Серия аналогово цифровых преобразователей (АЦП) AD7124-4

Общие характеристики

Раздел Аналогово Цифровые Преобразователи (АЦП)
Разрядность АЦП
Кол-во измерительных каналов
Тип аналого-цифрового преобразователя
Цифровой интерфейс
Конфигурация источника опорного напряжения
Диапазон питающих напряжений аналоговой части
Диапазон питающих напряжений цифровой части
Диапазон рабочих температур
Частота захвата сигнала

Документация на серию AD7124-4

4-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference AD7124-4 Data Sheet FEATURES Low-side power switch General-purpose outputs Multiple filter options Internal temperature sensor Self and system calibration Sensor burnout detection Automatic channel sequencer Per channel configuration Power supply: 2.7 V to 3.6 V and ±1.8 V Independent interface power supply Power-down current: 5 µA maximum Temperature range: −40°C to +125°C 32-lead LFCSP/24-lead TSSOP 3-wire or 4-wire serial interface SPI, QSPI, MICROWIRE, and DSP compatible Schmitt trigger on SCLK ESD: 4 kV 3 power modes RMS noise Low power: 24 nV rms at 1.17 SPS, gain = 128 (255 µA typical) Mid power: 20 nV rms at 2.34 SPS, gain = 128 (355 µA typical) Full power: 23 nV rms at 9.4 SPS, gain = 128 (930 µA typical) Up to 22 noise free bits in all power modes (gain = 1) Output data rate Full power: 9.38 SPS to 19,200 SPS Mid power: 2.34 SPS to 4800 SPS Low power: 1.17 SPS to 2400 SPS Rail-to-rail analog inputs for gains > 1 Simultaneous 50 Hz/60 Hz rejection at 25 SPS (single cycle settling) Diagnostic functions (which aid safe integrity level (SIL) certification) Crosspoint multiplexed analog inputs 4 differential/7 pseudo differential inputs Programmable gain (1 to 128) Band gap reference with 10 ppm/°C drift maximum (70 µA) Matched programmable excitation currents Internal clock oscillator On-chip bias voltage generator APPLICATIONS Temperature measurement Pressure measurement Industrial process control Instrumentation Smart transmitters FUNCTIONAL BLOCK DIAGRAM 1.9V LDO REGCAPA VBIAS BANDGAP REF AVDD AVSS CROSSPOINT MUX AIN2/IOUT/VBIAS/P1 BUF BURNOUT DETECT AIN4/IOUT/VBIAS PGA1 24-BIT Σ-Δ ADC PGA2 BUF AIN5/IOUT/VBIAS 1.8V LDO REFERENCE BUFFERS AIN1/IOUT/VBIAS AIN3/IOUT/VBIAS/P2 REFIN2(+) REFIN2(–) AVSS AVDD AIN0/IOUT/VBIAS IOVDD REGCAPD REFIN1(+) REFIN1(–) REFOUT VARIABLE DIGITAL FILTER SERIAL INTERFACE AND CONTROL LOGIC X-MUX ANALOG BUFFERS AVSS CHANNEL SEQUENCER GPOs TEMPERATURE SENSOR DIAGNOSTICS PSW POWER SWITCH SCLK CS AIN6/IOUT/VBIAS/REFIN2(+) AIN7/IOUT/VBIAS/REFIN2(–) DOUT/RDY DIN AVDD SYNC DIAGNOSTICS COMMUNICATIONS POWER SUPPLY SIGNAL CHAIN DIGITAL EXCITATION CURRENTS INTERNAL CLOCK AD7124-4 AVSS AVSS DGND CLK 13197-001 AVDD Figure 1. Rev. D 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 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 ©2015–2018 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com PDF
Документация на серию AD7124-4 

AD7124-4 (Rev. D) 4-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference

Дата модификации: 18.06.2021

Размер: 1.7 Мб

93 стр.

    Товары серии AD7124-4

    Наименование i Упаковка Корпус
    AD7124-4BBCPZ (AD) QFN-32 32-QFN (5x5)
    AD7124-4BCPZ (AD) 1 шт LFCSP32
    AD7124-4BCPZ-RL (AD)
    AD7124-4BCPZ-RL7 (AD) QFN-32 32-QFN (5x5)
    AD7124-4BRUZ (AD) The AD7124-4 is a 4ch 24b ?-? ADC 1 шт TSSOP-24
    AD7124-4BRUZ-RL7 (AD) 1 шт TSSOP-24

    AD7124-4 публикации

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