ad8236 Analog Devices, Inc., ad8236 Datasheet

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ad8236

Manufacturer Part Number
ad8236
Description
40?a Micropower Instrumentation Amplifier In Msop
Manufacturer
Analog Devices, Inc.
Datasheet

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Preliminary Technical Data
FEATURES
Low Power
Low input currents
High CMRR
Space Saving
Versatile
APPLICATIONS
Medical instrumentation
Low side current sense
Portable Electronics
GENERAL DESCRIPTION
The AD8236 is the industry’s lowest power instrumentation
amplifier. It has rail to rail outputs and can operate on voltages
as low as 1.8V. Its 40uA supply current makes it an excellent
choice in battery powered applications.
The AD8236 is an excellent choice for signal conditioning. It’s
low input bias current of 10pA and high CMRR of 106dB
(G=100) offer tremendous value for its size and low power. It
has a wider common-mode voltage range than typical three op
amp in-amps, making this a great solution for applications that
operate on a single 1.8V or 3V supply.
It is available in an 8 lead MSOP package and is specified over
the industrial temperature range of -40° to 125°C.
Rev. PrA
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
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.
Trademarks and registered trademarks are the property of their respective owners.
40 μA supply current
10 pA input bias current
5 pA input offset current
106 dB CMRR , G = 100
MSOP package
Rail-to-rail output
Gain set with single resistor (G = 5 to 200)
40μA Micropower Instrumentation
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Figure 2. Wide Common Mode Voltage Range vs. Output Voltage, REF = mid-
5
4
3
2
1
–IN
+IN
R
R
Vs = 1.8V
G
G
1
1
2
3
4
BLOCK DIAGRAM
©2007 Analog Devices, Inc. All rights reserved.
(Not to Scale)
OUTPUT VO LTAGE (V)
AD8236
TOP VIEW
Amplifier in MSOP
Figure 1.
2
supply
Vs = 5V
8
7
6
5
3
+V
V
REF
–V
OUT
S
S
AD8236
www.analog.com
4
5

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ad8236 Summary of contents

Page 1

... It has rail to rail outputs and can operate on voltages as low as 1.8V. Its 40uA supply current makes it an excellent choice in battery powered applications. The AD8236 is an excellent choice for signal conditioning. It’s low input bias current of 10pA and high CMRR of 106dB (G=100) offer tremendous value for its size and low power. It ...

Page 2

... AD8236 SPECIFICATIONS − 2 +25° REF A Table 1. Parameter Test Conditions COMMON-MODE REJECTION RATIO (CMRR) CMRR DC with 1 kΩ Source Imbalance 100 G = 200 NOISE Voltage Noise, 1 kHz Spectral Density Noise. RTI G=5 RTI, 0 ...

Page 3

... GΩ|| 4.98 4.99 V 4.98 V 4.9 4. ±45 mA 210 kΩ 1 μA -Vs + V/V 1.8 5 μA μA -40 125 °C Rev. PrA | Page AD8236 ...

Page 4

... AD8236 1 − 0 REF A Table 2. Parameter Test Conditions COMMON-MODE REJECTION RATIO (CMRR) CMRR DC with 1 kΩ Source Imbalance 100 G = 200 NOISE Voltage Noise, 1 kHz Spectral Density Noise. RTI G=5 RTI, 0 200 Current Noise VOLTAGE OFFSET ...

Page 5

... Typ Max Unit % % % % ppm ppm ppm ppm ppm ppm ppm ppm/°C ppm/°C 220||4 GΩ|| 1.78 1.79 V 1.78 V 1.65 1.75 1. ±4.5 mA 210 kΩ 1 μA -Vs + V/V 1.8 5 μA μA -40 125 °C Rev. PrA | Page AD8236 ...

Page 6

... Positive Input Terminal (True Differential Input) 5 −V Negative Power Supply Terminal S 6 REF Reference Voltage Terminal (Drive This Terminal with a Low Impedance Voltage Source to Level-Shift the Output Output Terminal OUT 8 +V Positive Power Supply Terminal S AD8236 – OUT R REF 3 6 ...

Page 7

... PR08000-0-12/08(PrA) 3.20 3.00 2.80 5. 3.20 4.90 3.00 4.65 2. PIN 1 0.65 BSC 0.95 0.85 1.10 MAX 0.75 8° 0.15 0.38 0.23 0° 0.00 0.22 0.08 COPLANARITY SEATING 0.10 PLANE COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 3. 8-Lead Mini Small Outline Package [MSOP] (RM-8) Dimensions shown in millimeters Package Description 8-Lead MSOP Rev. PrA | Page AD8236 0.80 0.60 0.40 Package Option Branding RM-8 ...

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