AD5940集成電路（IC）的模擬前端（AFE）規(guī)格書PDF中文資料

AD5940屬于集成電路（IC）的模擬前端（AFE）。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD5940模擬前端（AFE）模擬前端 (AFE) 是一種用于信號(hào)調(diào)節(jié)的半導(dǎo)體器件，由模擬放大器、運(yùn)算放大器、濾波器和集成電路構(gòu)成。這種可配置功能塊能連接各種傳感器。分辨率范圍從 8 位至 42 位不等，通道數(shù)范圍為 1 至 256 個(gè)。

FEATURES

? Analog input

? 16-bit ADC with both 800 kSPS and 1.6 MSPS options

? Voltage, current, and impedance measurement capability

? Internal and external current and voltage channels

? Ultralow leakage switch matrix and input mux

? Input buffers and programmable gain amplifier

? Voltage DACs

? Dual output voltage DAC with an output range of 0.2 V to 2.4

V

? 12-bit VBIAS0 output to bias potentiostat

? 6-bit VZERO0 output to bias TIA

? Ultra low power: 1 μA

? 1 high speed, 12-bit DAC

? Output range from high-speed DAC (HSDAC): ±607 mV

? Programmable gain amplifier on HSDAC output with gain

settings of 2 and 0.05

? Amplifiers, accelerators, and references

? 1 low power, low noise potentiostat amplifier suitable for

potentiostat bias in electrochemical sensing

? 1 low noise, low power TIA, suitable for measuring sensor

current output

? 50 pA to 3 mA range

? Programmable load and gain resistors for sensor output

? Analog hardware accelerators

? Digital waveform generator

? Receive filters

? Complex impedance measurement (DFT) engine

? 1 high speed TIA to handle wide bandwidth input signals from

0.015 Hz up to 200 kHz

? Digital waveform generator for generation of sinusoid and

trapezoid waveforms

? 2.5 V and 1.82 V internal reference voltage sources

? System level power savings

? Fast power-up and power-down analog blocks for duty cycling

? Programmable AFE sequencer to minimize workload of host

controller

? 6 kB SRAM to preprogram AFE sequences

? Ultra low power potentiostat channel: 6.5 μA of current consumption

when powered on and all other blocks in hibernate

mode

? Smart sensor synchronization and data collection

? Cycle accurate control of sensor measurement

? Sequencer controlled GPIOs

? On-chip peripherals

? SPI serial input/output

? Wake-up timer

? Interrupt controller

? Power

? 2.8 V to 3.6 V supply

? 1.82 V input/output compliant

? Power-on reset

? Hibernate mode with low power DAC and potentiostat amplifier

powered up to maintain sensor bias

? Package and temperature range

? AD5940: 3.6 mm × 4.2 mm, 56-ball WLCSP

? AD5941: 7 mm × 7 mm, 48-lead LFCSP

? AD5940 and AD5941 fully specified for operating temperature

range of ?40°C to +85°C

? AD5941W fully specified for operating temperature range of

?40°C to +105°C

? AEC-Q100 qualified for automotive applications

APPLICATIONS

? Electrochemical measurements

? Electrochemical gas sensor measurements

? Potentiostat/amperometric/voltammetry/cyclic voltammetry

? Bioimpedance applications

? Skin impedance

? Body impedance

? Continuous glucose monitoring

? Battery impedance