AD8226 Datasheet, PDF (1/16 Pages) Analog Devices – Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier

Preliminary Technical Data
FEATURES
Gain set with 1 external resistor
Gain range: 1 to 1000
Input voltage goes to ground
Input overdrive protection
Very wide power supply range
Dual supply: ±1.3 V to ±18 V
Single supply: 2.6 V to 36 V
Bandwidth (G = 1): 800 kHz
CMRR (G = 1): 78 dB minimum
Input noise: 22 nV/rt(Hz)
Typical supply current: 350 µA
SOIC-8 and MSOP-8 packages
APPLICATIONS
Industrial process controls
Bridge amplifiers
Medical instrumentation
Portable data acquisition
Multichannel systems
Wide Supply Range, Rail-to-Rail
Output Instrumentation Amplifier
AD8226
PIN CONFIGURATION
–IN 1
R_G 2
R_G 3
+IN 4
AD8226
8 +V_S
7 V_OUT
6 REF
5 –V_S
TOP VIEW
(Not to Scale)
Figure 1.
GENERAL DESCRIPTION
The AD8226 is a low cost instrumentation amplifier that requires
only one external resistor to set any gain between 1 and 1000.
The AD8226 is designed to work with a very wide range of
voltages. It can operate on supplies ranging from ±1.2 V to
±18 V (2.4 V to 36 V single supply). 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.
The AD8226 is perfect for multichannel, space-constrained
applications. Being a low power and low cost amplifier allows
multiple channels to be used.
The AD8226 has three grades. The A grade is the lower cost
version and is specified for temperatures from −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 at
these temperatures is shown in the typical performance curves.
The AD8226 is available in MSOP and SOIC packages.
Table 1. Instrumentation Amplifiers by Category
General Zero
Military Low
High Speed
Purpose Drift
Grade Power
PGA
AD8220¹ AD8231¹ AD620 AD627¹
AD8250
AD8221 AD8290 AD621 AD623¹ AD8251
AD8222 AD8293¹ AD524 AD8226¹ AD8253
AD8224¹ AD8553¹ AD526
AD8228 AD8556¹ AD624
AD8557¹
1 _{Rail-to-rail output.}
Rev. PrA
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