EL8170 Datasheet, PDF (1/14 Pages) Intersil Corporation – Micropower, Single Supply, Rail-to-Rail Input-Output Instrumentation Amplifiers

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Data Sheet
Micropower, Single Supply, Rail-to-Rail
Input-Output Instrumentation Amplifiers
The EL8170 and EL8173 are micropower instrumentation
amplifiers optimized for single supply operation over the
+2.4V to +5.5V range. Inputs and outputs can operate
rail-to-rail. As with all instrumentation amplifiers, a pair of
inputs provide very high common-mode rejection and are
completely independent from a pair of feedback terminals.
The feedback terminals allow zero input to be translated to
any output offset, including ground. A feedback divider
controls the overall gain of the amplifier.
The EL8170 is compensated for a gain of 100 or more, and
the EL8173 is compensated for a gain of 10 or more. The
EL8170 and EL8173 have bipolar input devices for best
offset and 1/f noise performance.
The amplifiers can be operated from one lithium cell or two
Ni-Cd batteries. The EL8170 and EL8173 input range
includes ground to slightly above positive rail. The output
stage swings to ground and positive supply (no pull-up or
pull-down resistors are needed).
Pinouts
EL8170
(8 LD SOIC)
TOP VIEW
DNC 1
+
-
8 FB+
IN- 2
-
+
Σ
7 V+
IN+ 3
6 VOUT
V- 4
5 FB-
EL8173
(8 LD SOIC)
TOP VIEW
DNC 1
+
-
8 FB+
IN- 2
-
+
Σ
7 V+
IN+ 3
6 VOUT
V- 4
5 FB-
EL8170, EL8173
August 31, 2009
FN7490.6
Features
• 95µA Maximum Supply Current
• Maximum Offset Voltage
- 200µV (EL8170)
- 1000µV (EL8173)
• Maximum 3nA Input Bias Current
• 396kHz -3dB Bandwidth (G = 10)
• 192kHz -3dB Bandwidth (G = 100)
• Single Supply Operation
- Input Voltage Range is Rail-to-Rail
- Output Swings Rail-to-Rail
• Pb-Free (RoHS Compliant)
Applications
• Battery- or Solar-Powered Systems
• Strain Gauges
• Current Monitors
• Thermocouple Amplifiers
Ordering Information
PART NUMBER
(Note)
PART
MARKING
PACKAGE
(Pb-Free)
PKG.
DWG. #
EL8170FSZ*
8170FSZ
8 Ld SOIC M8.15E
EL8173FSZ*
8173FSZ
8 Ld SOIC M8.15E
*Add “-T7” suffix for tape and reel. Please refer to TB347 for details
on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations). Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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