DatasheetsPDF.com

ADC Driver. AD8275 Datasheet

DatasheetsPDF.com

ADC Driver. AD8275 Datasheet






AD8275 Driver. Datasheet pdf. Equivalent




AD8275 Driver. Datasheet pdf. Equivalent





Part

AD8275

Description

16-Bit ADC Driver



Feature


FEATURES Translates ±10 V to +4 V Drive s 16-bit SAR ADCs Small MSOP package In put overvoltage: +40 V to −35 V (VS = 5 V) Fast settling time: 450 ns to 0.0 01% Rail-to-rail output Wide supply ope ration: +3.3 V to +15 V High CMRR: 80 d B Low gain drift: 1 ppm/°C Low offset drift: 2.5 μV/°C APPLICATIONS Level t ranslator ADC driver Instrumentation am plifier building block A.
Manufacture

Analog Devices

Datasheet
Download AD8275 Datasheet


Analog Devices AD8275

AD8275; utomated test equipment GENERAL DESCRIPT ION The AD8275 is a G = 0.2 difference amplifier that can be used to translate ±10 V signals to a +4 V level. It sol ves the problem typically encountered i n industrial and instrumentation applic ations where ±10 V signals must be int erfaced to a single-supply 4 V or 5 V A DC. The AD8275 interfaces the two signa l levels, simplifyin.


Analog Devices AD8275

g design. The AD8275 has fast settling t ime of 450 ns and low distortion, makin g it suitable for driving medium speed successive approximation (SAR) ADCs. It s wide input voltage range and rail-tor ail outputs make it an easy to use buil ding block. Singl .


Analog Devices AD8275

.

Part

AD8275

Description

16-Bit ADC Driver



Feature


FEATURES Translates ±10 V to +4 V Drive s 16-bit SAR ADCs Small MSOP package In put overvoltage: +40 V to −35 V (VS = 5 V) Fast settling time: 450 ns to 0.0 01% Rail-to-rail output Wide supply ope ration: +3.3 V to +15 V High CMRR: 80 d B Low gain drift: 1 ppm/°C Low offset drift: 2.5 μV/°C APPLICATIONS Level t ranslator ADC driver Instrumentation am plifier building block A.
Manufacture

Analog Devices

Datasheet
Download AD8275 Datasheet




 AD8275
FEATURES
Translates ±10 V to +4 V
Drives 16-bit SAR ADCs
Small MSOP package
Input overvoltage: +40 V to −35 V (VS = 5 V)
Fast settling time: 450 ns to 0.001%
Rail-to-rail output
Wide supply operation: +3.3 V to +15 V
High CMRR: 80 dB
Low gain drift: 1 ppm/°C
Low offset drift: 2.5 μV/°C
APPLICATIONS
Level translator
ADC driver
Instrumentation amplifier building block
Automated test equipment
GENERAL DESCRIPTION
The AD8275 is a G = 0.2 difference amplifier that can be used
to translate ±10 V signals to a +4 V level. It solves the problem
typically encountered in industrial and instrumentation applic-
ations where ±10 V signals must be interfaced to a single-supply
4 V or 5 V ADC. The AD8275 interfaces the two signal levels,
simplifying design.
The AD8275 has fast settling time of 450 ns and low distortion,
making it suitable for driving medium speed successive approx-
imation (SAR) ADCs. Its wide input voltage range and rail-to-
rail outputs make it an easy to use building block. Single-supply
operation reduces the power consumption of the amplifier and
helps to protect the ADC from overdrive conditions.
Internal, matched, precision laser-trimmed resistors ensure
low gain error, low gain drift of 1 ppm/°C (maximum), and
high common-mode rejection of 80 dB. Low offset and low
offset drift, combined with its fast settling time, make the
AD8275 suitable for a variety of data acquisition applications
where accurate and quick capture is required.
G = 0.2, Level Translation,
16-Bit ADC Driver
AD8275
+10V
–10V VIN
PIN CONFIGURATION
REF1 1
–IN 2
+IN 3
–VS 4
AD8275
TOP VIEW
(Not to Scale)
8 REF2
7 +VS
6 OUT
5 SENSE
Figure 1.
TYPICAL APPLICATION
+5V
0.1µF
0.1µF
50k
2
–IN
7
+VS
10k
5
SENSE
OUT
6
50k
3
+IN
20k
8
REF2
20k
1
REF1
AD8275 –VS
4
+4.048V
+2.048V
+0.048V
33
2.7nF
VDD
IN+
AD7685
IN–
REF
GND
VREF
4.096V
10µF
Figure 2. Translating ±10 V to 4.096 V ADC Full Scale
The AD8275 can be used as an analog front end, or it can follow
buffers to level translate high voltages to a voltage range accepted
by the ADC. In addition, the AD8275 can be configured for diff-
erential outputs if used with a differential ADC.
The AD8275 is available in a space-saving, 8-lead MSOP
and is specified for performance over the −40°C to +85°C
temperature range.
Table 1. Difference Amplifiers by Category
Low Distortion
High Voltage
Single-Supply
Current Sense
AD8270
AD628
AD8202
AD8273
AD629
AD8203
AD8274
AD8205
AD8275
AD8206
AMP03
AD8216
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2008-2010 Analog Devices, Inc. All rights reserved.




 AD8275
AD8275* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
View a parametric search of comparable parts
Documentation
Data Sheet
• AD8275: G = 0.2, Level Translation, 16-Bit ADC Driver
Data Sheet
Tools and Simulations
• AD8275 SPICE Macro Model
Reference Designs
• CN0209
• CN0213
• CN0225
• CN0352
Reference Materials
Product Selection Guide
• SAR ADC & Driver Quick-Match Guide
Solutions Bulletins & Brochures
• Test & Instrumentation Solutions Bulletin, Volume 10,
Issue 3
Design Resources
• AD8275 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
View all AD8275 EngineerZone Discussions
Sample and Buy
Visit the product page to see pricing options
Technical Support
Submit a technical question or find your regional support
number
* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.




 AD8275
AD8275
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configuration............................................................................. 1
Typical Application........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Maximum Power Dissipation ..................................................... 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 11
Basic Connection........................................................................ 11
Power Supplies ............................................................................ 12
REVISION HISTORY
8/10—Rev. 0 to Rev. A
Changes to Figure 40...................................................................... 14
10/08—Revision 0: Initial Version
Reference ..................................................................................... 12
Common-Mode Input Voltage Range ..................................... 12
Input Protection ......................................................................... 12
Configurations............................................................................ 13
Applications Information .............................................................. 14
Driving a Single-Ended ADC ................................................... 14
Differential Outputs................................................................... 14
Increasing Input Impedance ..................................................... 15
AC Coupling ............................................................................... 15
Using the AD8275 as a Level Translator in a Data Acquisition
System .......................................................................................... 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 16
Rev. A | Page 2 of 16






Recommended third-party AD8275 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)