Datasheet > THS4531AIRUNR

THS4531AIRUNR

更新时间： 2024-11-21 12:00:31

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
50页	1485K
描述
Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

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THS4531AIRUNR 数据手册

THS4531A

www.ti.com

SLOS823A –DECEMBER 2012–REVISED JANUARY 2013

Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

Check for Samples: THS4531A

FEATURES

DESCRIPTION

The THS4531A is a low-power, fully-differential op

amp with input common-mode range below the

negative rail and rail-to-rail output. The device is

designed for low-power data acquisition systems and

high density applications where power consumption

and dissipation is critical.

•

Ultra Low Power:

–

Voltage: 2.5 V to 5.5 V

Current: 250 µA

Power-Down Mode: 0.5 µA (typ)

•

Fully-Differential Architecture

Bandwidth: 36 MHz

The device features accurate output common-mode

control that allows for dc coupling when driving

analog-to-digital converters (ADCs). This control,

coupled with the input common-mode range below

the negative rail and rail-to-rail output, allows for easy

interface from single-ended ground-referenced signal

sources to successive-approximation registers

(SARs), and delta-sigma (ΔΣ) ADCs using only

single-supply 2.5-V to 5-V power. The THS4531A is

also a valuable tool for general-purpose, low-power

differential signal conditioning applications.

Slew Rate: 200 V/µs

THD: –120 dBc at 1 kHz (1 V_RMS, R_L= 2 kΩ)

Input Voltage Noise: 10 nV/√Hz (f = 1 kHz)

High DC Accuracy:

–

V_OS: ±100 µV

V_OSDrift: ±3 µV/˚C (–40°C to +125°C)

A_OL: 114 dB

•

Rail-to-Rail Output (RRO)

Negative Rail Input (NRI)

Output Common-Mode Control

The THS4531A is characterized for operation over

the extended industrial temperature range from

–40°C to +125°C. The following package options are

available:

APPLICATIONS

•

8-pin SOIC (MSOP) and VSSOP (D and DGK)

10-pin WQFN (RUN)

•

Low-Power SAR, ΔΣ ADC Driver

Low Power, High Performance:

−10

−20

−30

−40

V_S= 5 V

G = 1 V/V

V_OUT= 1 V_RMS

R_F= 2 kΩ

–

Differential to Differential Amplifier

Single-Ended to Differential Amplifier

R_L= 600 Ω

•

Low-Power, Wide-Bandwidth Differential Driver

−50

−60

−70

−80

Low-Power, Wide-Bandwidth Differential

Signal Conditioning

−90

•

High Channel Count and Power Dense

Systems

−100

−110

−120

−130

−140

10k

15k

20k

24k

Frequency (Hz)

G071

Figure 1. 1-kHz FFT Plot on Audio Analyzer

Table 1. Related Products

THD (dBc) at 100

DEVICE

BW (MHz)

I_Q(mA)

kHz

V_N(nV/√Hz)

RAIL-TO-RAIL

THS4521

THS4520

THS4121

THS4131

145

570

100

150

1.14

15.3

–120

–114

–79

4.6

Out

5.4

1.3

In/Out

–107

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...50

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THS4531AIRUNR 替代型号

型号	品牌	替代类型	描述	数据表
THS4531AIRUNT	TI	功能相似	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IRUNR	TI	功能相似	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IRUNT	TI	功能相似	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

与THS4531AIRUNR相关器件

型号	品牌	获取价格	描述	数据表
THS4531AIRUNT	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531DGKEVM	TI	获取价格	THS4531DGKEVM Evaluation Module
THS4531ID	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IDGK	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IDGKR	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IDR	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IRUNR	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531IRUNT	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4532	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4532_16	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

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