Datasheet > ADS127L11_V02

ADS127L11_V02

更新时间： 2024-11-01 02:52:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
90页	3904K
描述
ADS127L11 400-kSPS, Wide-Bandwidth, 24-Bit, Delta-Sigma ADC

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ADS127L11_V02 数据手册

ADS127L11

SBAS946A – APRIL 2021 – REVISED OCTOBER 2021

ADS127L11 400-kSPS, Wide-Bandwidth, 24-Bit, Delta-Sigma ADC

1 Features

3 Description

•

Programmable data rate:

The ADS127L11 is a 24-bit, delta-sigma (ΔΣ), analog-

to-digital converter (ADC) with data rates up to

400 kSPS using the wideband filter and up to

1067 kSPS using the low-latency filter. The device

offers an excellent combination of ac performance

and dc precision with low power consumption

(18.6 mW in high-speed mode).

– Up to 400 kSPS (wideband filter)

– Up to 1.067 MSPS (low-latency filter)

Selectable digital filter:

– Wideband or low-latency

AC accuracy with DC precision:

– Dynamic range: 111.5 dB (200 kSPS)

– THD: –120 dB

– INL: 0.9 ppm of FS

– Offset drift: 50 nV/°C

– Gain drift: 0.6 ppm/°C

Power-scalable architecture:

– High-speed mode: 400 kSPS, 18.6 mW

– Low-speed mode: 50 kSPS, 3.3 mW

Input and reference precharge buffers

Internal or external clock

Functional Safety-Capable

– Documentation available to aid functional safety

system design

•

The device integrates input and reference buffers

to reduce signal loading. The low-drift modulator

achieves excellent dc precision with low in-band noise

for outstanding ac performance. The power-scalable

architecture provides two speed modes to optimize

data rate, resolution, and power consumption.

•

The digital filter is configurable for wideband or low-

latency operation, allowing wideband ac performance

or data throughput for dc signals to be optimized, all in

one device.

•

The serial interface features daisy-chain capability to

reduce the SPI I/O over an isolation barrier. Input and

output data and register settings are validated by a

cyclic-redundancy check (CRC) feature to enhance

operational reliability.

2 Applications

•

Test and measurement:

– Data acquisition (DAQ)

– Shock and vibration instruments

– Acoustics and dynamic strain gauges

Factory automation and control:

– Condition monitoring

Aerospace and defense:

– SONAR

The small 3-mm × 3-mm WQFN and 6.5-mm × 4.4-

mm TSSOP packages are designed for limited space

applications. The device is fully specified for operation

over the –40°C to +125°C temperature range.

•

Device Information⁽¹⁾

PART NUMBER

PACKAGE

WQFN (20)⁽²⁾

TSSOP (20)

BODY SIZE (NOM)

3.00 mm × 3.00 mm

6.50 mm × 4.40 mm

Medical:

– Electroencephalogram (EEG)

Grid Infrastructure:

ADS127L11

– Power quality analyzer

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

(2) Preview package.

AVDD1 REFP REFN AVDD2

IOVDD

DRDY

÷ 2

VCM

ADS127L11

Control

Logic

START

RESET

Wideband

Filter

AINP

AINN

SCLK

SDI

SPI

Interface

Modulator

Low-latency

Filter

SDO/DRDY

Osc

CLK

Mux

AVSS

DGND

Simplified Block Diagram

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...90

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与ADS127L11_V02相关器件

型号	品牌	获取价格	描述	数据表
ADS127L11IPWR	TI	获取价格	ADS127L11 400-kSPS, Wide-Bandwidth, 24-Bit, Delta-Sigma ADC
ADS127L11IPWT	TI	获取价格	ADS127L11 400-kSPS, Wide-Bandwidth, 24-Bit, Delta-Sigma ADC
ADS127L11IRUKR	TI	获取价格	具有易驱动输入和宽带或低延迟滤波器的 24 位 400kSPS Δ-Σ ADC \| RUK
ADS127L11IRUKT	TI	获取价格	具有易驱动输入和宽带或低延迟滤波器的 24 位 400kSPS Δ-Σ ADC \| RUK
ADS127L18	TI	获取价格	八通道、同步采样、512kSPS 宽带 24 位 Δ-Σ ADC
ADS127L21	TI	获取价格	具有可编程 IIR 和 FIR 滤波器的 24 位、512kSPS 宽带宽 Δ-Σ ADC
ADS1281	TI	获取价格	High-Resolution Analog-to-Digital Converter
ADS1281_14	TI	获取价格	High-Resolution Analog-to-Digital Converter
ADS1281IPW	TI	获取价格	High-Resolution Analog-to-Digital Converter
ADS1281IPWG4	TI	获取价格	High-Resolution Analog-to-Digital Converter

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