Datasheet > THS4531IDR

THS4531IDR

更新时间： 2024-11-21 11:44:27

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
54页	1182K
描述
Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

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THS4531IDR 数据手册

THS4531

www.ti.com

SLOS358B –SEPTEMBER 2011–REVISED MARCH 2012

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

Check for Samples: THS4531

FEATURES

DESCRIPTION

The THS4531 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 THS4531 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_OSDrift: ±4 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 THS4531 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:

V_S= 5 V

G = 1 V/V

V_OUT= 1 V_RMS

R_F= 2 kΩ

−10

−20

−30

−40

−50

–

Differential to Differential Amplifier

Single-Ended to Differential Amplifier

•

Low-Power, Wide-Bandwidth Differential Driver

R_L= 600 Ω

Low-Power, Wide-Bandwidth Differential

Signal Conditioning

−60

−70

−80

−90

−100

−110

−120

−130

−140

•

High Channel Count and Power Dense

Systems

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...54

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THS4531IDR 替代型号

型号	品牌	替代类型	描述	数据表
THS4531AIDR	TI	类似代替	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531AID	TI	类似代替	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4531ID	TI	类似代替	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

与THS4531IDR相关器件

型号	品牌	获取价格	描述	数据表
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
THS4532IPW	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4532IPWR	TI	获取价格	Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier
THS4541	TI	获取价格	高速差动 I/O 放大器
THS4541-DIE	TI	获取价格	裸片 850MHz 精密全差分放大器
THS4541IRGTR	TI	获取价格	高速差动 I/O 放大器 \| RGT \| 16 \| -40 to 125
THS4541IRGTT	TI	获取价格	高速差动 I/O 放大器 \| RGT \| 16 \| -40 to 125

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