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(Maxim) MAX11214EUG analog-to-digital Converter: 24-bit, 5mW, 140dB SNR, 32ksps Δ-Σ ADC, integrated PGA

The MAX11214EUG mainly has the following functions:

High resolution, suitable for wide dynamic range instruments and meters

134dB SNR@ 15.6sps

124dB SNR @ 500sps

21-bit noise-free resolution @ 50sps

18.6-bit noise-free resolution @ 1ksps

It has a long battery life and is suitable for portable applications

The working mode current of AVDD is 1.2mA

The PGA low-noise mode current of AVDD is 2.6mA

1μA sleep current

High-precision DC measurement

1ppm INL (typical value), 4ppm (maximum value)

Single power supply or dual power supply, flexible input voltage range

2.7V to 3.6V (single power supply) or ±1.8V (dual power supply

Flexible high-performance filter architecture simplifies design

Programmable SINC + FIR + IIR

Linear or minimum phase response

Programmable high-pass filter

Selectable FIR data rate: 62.5sps to 8ksps

Support system integration

Low-noise PGA, with gain Settings of 1, 2, 4, 8, 16, 32, 64, and 128

Signal buffer options

Three general-purpose I/ OS

Gain and offset calibration of devices and systems can be carried out as needed

Reliable 24-pin TSSOP package

Description

The MAX11214EUG is a 24-bit Δ-Σ ADC with an excellent 140dB SNR and an ultra-low power consumption of 5mW. A sampling rate of up to 32ksps supports high-precision DC and AC measurements. The sampling rate of MAX11214EUG supports high-precision AC/DC measurements. It can guarantee a maximum integral nonlinearity of 4ppm and -122dB THD. The MAX11214EUG communicates via a SPI-compatible serial interface and is packaged in a small-sized 24-pin TSSOP.

The MAX11214EUG offers a programmable gain amplifier with a noise of only 6.5nV/ and a gain setting range of 1 to 128 times. The buffer can provide isolation between the signal input and the switching capacitor sampling network, allowing the MAX11214EUG to be directly used in conjunction with high-impedance sources without affecting the effective dynamic range.

The MAX11214EUG is equipped with a single analog power supply of 2.7V to 3.6V or a dual analog power supply of ±1.8V, allowing the sampled analog input to be below the ground potential. The digital power supply range is 2.0V to 3.6V and allows logical connection with 2.5V, 3V or 3.3V.

Application scenarios

The MAX11214EUG is suitable for high-precision measurement and applications requiring low power consumption, such as:

ATE

High-precision portable sensor

Medical device

Scientific instruments

Seismic data acquisition

Basic parameters

Model: MAX11214EUG

Digit number: 24

Sampling rate (per second) : 32k

Input number: 1

Input type: Differential

Data interface: SPI

Configuration: PGA-ADC

Ratio -S /H:ADC: -

Number of A/D converters: 1

Architecture: Triangular integral

Reference type: External

Voltage - Power supply, simulation: ±1.8V, 2.7V to 3.6V

Voltage - Power supply, digital: 2V to 3.6V

Feature: PGA

Operating temperature: -40°C to 85°C

Package/Shell: 24-TSSOP

Installation type: Surface mount type

【 Contact Mingjiada 】

For purchase of MAX11214EUG analog-to-digital converters, please visit www.hkmjd.com for inventory details.