Wide Supply Range, Rail-to-Rail
Output Instrumentation Amplifier
AD8226
Preliminary Technical Data
FEATURES
PIN CONFIGURATION
Gain set with 1 external resistor
Gain r a n g e : 1 to 1000
AD8226
1
2
3
4
8
7
6
5
–IN
+V
S
R
R
V
OUT
G
G
Input voltage goes to ground
Input overdrive protection
V e r y w ide power supply range
Dual supply: 1.3 V t o 18 V
Single supply: 2.6 V to 36 V
Bandwidt h ( G = 1): 800 kHz
CMRR (G = 1): 78 dB minimum
Input noise: 22 nV/r t(Hz)
REF
–V
+IN
S
TOP VIEW
(Not to Scale)
Figure 1.
Typical s u p p l y c u r r e n t : 350 µA
SOIC-8 and MSOP-8 packages
APPLICATIONS
Industrial process controls
Bridge amplifiers
Medical instrumentation
Portable data acquisition
Multichannel systems
GENERAL DESCRIPTION
Th e A D 8 2 2 6 i s a l o w c o s t i n s t r u m e n t a t i o n a m p l i f i e r t h a t r e q u i r e s
only one external resistor to set any gain between 1 and 1000.
Table 1. Instrumentation Amplifiers by Category
General Z e r o
Purpose Drift
Military L o w
Grade P o w e r
High Speed
PGA
The AD8226 is designed to work with a very wide range of
volta ge s. It can operate on supplies ranging from 1.2 V to
18 V (2.4 V to 36 V s i ng l e s uppl y ) . The AD8226 comes with
rail-to-rail output and a wide input range that includes the
ability to go slightly below the negative supply. In addition, the
AD8226 inputs can withstand voltages beyond the rail.
AD82201 AD82311 AD620
AD6271
AD6231
AD82261
AD8250
AD8251
AD8253
AD8221
AD8222
AD8290
AD621
AD82931 AD524
AD82241 AD85531 AD526
AD8228
AD85561 AD624
AD85571
The AD8226 is perfect for multichannel, space-cons traine d
a p p l i c a t i o n s . Being a low power and low cost amplifier allows
multiple channels to be used.
1 R a i l -to-rail output.
The AD8226 has three grades. The A grade is the lower cost
version and is specifie d for temperatures f rom −40°C to +85°C.
The B grade is the higher performance version and is specified
from −40°C to +85°C. The C grade version is the higher
temperature version and is specified from −40°C to +105°C. All
models are operational from −40°C to +125°C; behavior a t
these temperatures is shown in the typical performance curves.
The AD8226 is available in MSOP and SOIC packages.
Rev. PrA
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