Datasheet > AD8250_15

AD8250_15

更新时间： 2024-11-05 01:07:15

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Programmable Gain Instrumentation Amplifier

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AD8250_15 数据手册

10 MHz, 20 V/μs, G = 1, 2, 5, 10 iCMOS

Programmable Gain Instrumentation Amplifier

Data Sheet

AD8250

FEATURES

FUNCTIONAL BLOCK DIAGRAM

DGND WR

Small package: 10-lead MSOP

Programmable gains: 1, 2, 5, 10

Digital or pin-programmable gain setting

Wide supply: 5 V to 15 V

LOGIC

–IN

Excellent dc performance

High CMRR 98 dB (minimum), G = 10

Low gain drift: 10 ppm/°C (maximum)

Low offset drift: 1.7 μV/°C (maximum), G = 10

Excellent ac performance

OUT

+IN

Fast settling time: 615 ns to 0.001% (maximum)

High slew rate: 20 V/µs (minimum)

Low distortion: −110 dB THD at 1 kHz

High CMRR over frequency: 80 dB to 50 kHz (minimum)

Low noise: 18 nV/√Hz, G = 10 (maximum)

Low power: 4.1 mA

AD8250

–V

REF

Figure 1.

G = 10

G = 5

APPLICATIONS

Data acquisition

Biomedical analysis

Test and measurement

G = 2

G = 1

GENERAL DESCRIPTION

The AD8250 is an instrumentation amplifier with digitally

programmable gains that has GΩ input impedance, low output

noise, and low distortion making it suitable for interfacing with

sensors and driving high sample rate analog-to-digital converters

(ADCs). It has a high bandwidth of 10 MHz, low THD of −110

dB and fast settling time of 615 ns (maximum) to 0.001%. Offset

drift and gain drift are guaranteed to 1.7 μV/°C and 10 ppm/°C,

respectively, for G = 10. In addition to its wide input common

voltage range, it boasts a high common-mode rejection of 80 dB

at G = 1 from dc to 50 kHz. The combination of precision dc

performance coupled with high speed capabilities makes the

AD8250 an excellent candidate for data acquisition. Furthermore,

this monolithic solution simplifies design and manufacturing

and boosts performance of instrumentation by maintaining a

tight match of internal resistors and amplifiers.

–5

–10

10k

100k

10M

100M

FREQUENCY (Hz)

Figure 2. Gain vs. Frequency

Table 1. Instrumentation Amplifiers by Category

General

Purpose

AD8220¹

AD8221

AD8222

AD8224¹

AD8228

Mil

Grade

Low

Power

AD627¹

AD623¹

AD8223¹

High Speed

PGA

Zero Drift

AD8231¹

AD8553¹

AD8555¹

AD8556¹

AD8557¹

AD620

AD621

AD524

AD526

AD624

AD8250

AD8251

AD8253

Rail-to-rail output.

The AD8250 user interface consists of a parallel port that allows

users to set the gain in one of two ways (see Figure 1). A 2-bit word

The AD8250 is available in a 10-lead MSOP package and is

specified over the −40°C to +85°C temperature range, making

it an excellent solution for applications where size and packing

density are important considerations.

sent via a bus can be latched using the

input. An alternative is

to use the transparent gain mode where the state of the logic levels

at the gain port determines the gain.

Rev. C

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

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与AD8250_15相关器件

型号	品牌	获取价格	描述	数据表
AD8250_16	ADI	获取价格	10 MHz, 20 V/Î¼s, G = 1, 2, 5, 10 iCMOS Progr
AD8250ARMZ	ADI	获取价格	10 MHz, 20 V/Î¼s, G = 1, 2, 5, 10 iCMOS Progr
AD8250ARMZ-R7	ADI	获取价格	10 MHz, 20 V/Î¼s, G = 1, 2, 5, 10 iCMOS Progr
AD8250ARMZ-RL	ADI	获取价格	10 MHz, 20 V/Î¼s, G = 1, 2, 5, 10 iCMOS Progr
AD8250ARZ	ADI	获取价格	12MHz 20V/us G=1,2,5,10 Programmable Gain iCMOS Instrumentation Amplifier
AD8250ARZ-R7	ADI	获取价格	12MHz 20V/us G=1,2,5,10 Programmable Gain iCMOS Instrumentation Amplifier
AD8250ARZ-RL	ADI	获取价格	12MHz 20V/us G=1,2,5,10 Programmable Gain iCMOS Instrumentation Amplifier
AD8250-EVAL	ADI	获取价格	12MHz 20V/us G=1,2,5,10 Programmable Gain iCMOS Instrumentation Amplifier
AD8250-EVALZ	ADI	获取价格	10 MHz, 20 V/Î¼s, G = 1, 2, 5, 10 iCMOS Progr
AD8251	ADI	获取价格	12MHz 20V/us G=1,2,4,8 Programmable Gain iCMOS Instrumentation Amplifier

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