Datasheet
Low-Noise, Low-Distortion
INSTRUMENTATION AMPLIFIER
Replacement for SSM2017
DESCRIPTION
The INA217 is a low-noise, low-distortion, monolithic instru-
mentation amplifier. Current-feedback circuitry allows the
INA217 to achieve wide bandwidth and excellent dynamic
response over a wide range of gain. The INA217 is ideal for
low-level audio signals such as balanced low-impedance
microphones. Many industrial, instrumentation, and medical
applications also benefit from its low noise and wide band-
width.
Unique distortion cancellation circuitry reduces distortion to
extremely low levels, even in high gain. The INA217 provides
near-theoretical noise performance for 200Ω source imped-
ance. The INA217 features differential input, low noise, and
low distortion that provides superior performance in profes-
sional microphone amplifier applications.
The INA217 features wide supply voltage, excellent output
voltage swing, and high output current drive, making it an
optimal candidate for use in high-level audio stages.
The INA217 is available in the same DIP-8 and SOL-16 wide
body packages and pinouts as the SSM2017. For a smaller
package, see the INA163 in SO-14 narrow. The INA217 is
specified over the temperature range of –40°C to +85°C.
APPLICATIONS
● PROFESSIONAL MICROPHONE PREAMPS
● MOVING-COIL TRANSDUCER AMPLIFIERS
● DIFFERENTIAL RECEIVERS
● BRIDGE TRANSDUCER AMPLIFIERS
FEATURES
● LOW NOISE: 1.3nV/√Hz at 1kHz
● LOW THD+N: 0.004% at 1kHz, G = 100
● WIDE BANDWIDTH: 800kHz at G = 100
● WIDE SUPPLY RANGE:
±4.5V to ±18V
● HIGH CMR: > 100dB
● GAIN SET WITH EXTERNAL RESISTOR
● DIP-8 AND SOL-16 WIDEBODY PACKAGES
INA217
SBOS247B – JUNE 2002 – REVISED FEBRUARY 2005
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2002-2005, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I
N
A
2
1
7
I
N
A
2
1
7
A1
A2
A3
6kΩ 6kΩ
6
45
2
1
8
3
6kΩ 6kΩ
V
IN
–
RG
1
V
IN
+
RG
2
7
V–
V+
REF
INA217
G = 1 +
10kΩ
R
G
5kΩ
5kΩ
V
OUT
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