OP27A, OP27C
LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS100E − FEBRUARY 1989 − REVISED FEBRUARY 2010
D
Replacements for ADI, PMI and LTC OP27
Series
Features of OP27A and OP27C:
D
Maximum Equivalent Input Noise Voltage:
3.8 nV/√Hz at 1 kHz
5.5 nV/√Hz at 10 kHz
D
Very Low Peak-to-Peak Noise Voltage at
0.1 Hz to 10 Hz . . . 80 nV Typ
D
Low Input Offset Voltage
OP27A . . . 25
μV
Max
OP27C . . . 100
μV
Max
D
High Voltage Amplification
OP27A . . . 1 V/
μV
Min
OP27C . . . 0.7 V/
μV
Min
V
IO
TRIM
IN −
IN +
V
CC −
JG PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
V
IO
TRIM
V
CC +
OUT
NC
FK PACKAGE
(TOP VIEW)
NC
VIOTRIM
description
The OP27 operational amplifiers combine out-
standing noise performance with excellent
precision and high-speed specifications. The
wideband noise is only 3 nV/√Hz and with the 1/f
noise corner at 2.7 Hz, low noise is maintained for
all low-frequency applications.
The outstanding characteristics of the OP27 make
these devices excellent choices for low-noise
amplifier applications requiring precision
performance and reliability.
The OP27 series is compensated for unity gain.
The OP27A and OP27C are characterized for
operation over the full military temperature range
of −55°C to 125°C.
NC
1N −
NC
IN +
NC
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
NC
VIOTRIM
NC
NC
V
CC +
NC
OUT
NC
+
6
NC − No internal connection
symbol
IN +
IN −
3
VCC −
NC
NC
NC
NC
OUT
2
−
1
8
V
IO
TRIM
Pin numbers are for the JG packages.
AVAILABLE OPTIONS
PACKAGE
T
A
V
IO
max
AT 25°C
25
μV
100
μV
STABLE
GAIN
1
1
CERAMIC DIP
(JG)
OP27AJG
OP27CJG
CHIP CARRIER
(FK)
OP27AFK
—
−55°C to 125°C
55°C
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.
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
©
2010, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
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