OP27（低噪声精密高速运算放大器）.pdf
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OP27A, OP27C, OP27E, OP27G
OP37A, OP37C, OP37E, OP37G
LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994
Copyright 1994, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
• Direct Replacements for PMI and LTC OP27
and OP37 Series
Features of OP27A, OP27C, OP37A, and
OP37C:
• Maximum Equivalent Input Noise Voltage:
3.8 nV/√Hz
at 1 kHz
5.5 nV/√Hz
at 10 kHz
• Very Low Peak-to-Peak Noise Voltage at
0.1 Hz to 10 Hz . . . 80 nV Typ
• Low Input Offset Voltage ...25 µV Max
• High Voltage Amplification ...1 V/µV Min
Feature of OP37 Series:
• Minimum Slew Rate ...11 V/µs
description
The OP27 and OP37 operational amplifiers
combine outstanding 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 and
OP37 make these devices excellent choices
for low-noise amplifier applications requiring
precision performance and reliability. Additionally,
the OP37 is free of latch-up in high-gain,
large-capacitive-feedback configurations.
The OP27 series is compensated for unity gain.
The OP37 series is decompensated for increased
bandwidth and slew rate and is stable down to a
gain of 5.
The OP27A, OP27C, OP37A, and OP37C are
characterized for operation over the full military
temperature range of –55°C to 125°C. The
OP27E, OP27G, OP37E, and OP37G are
characterized for operation from – 25°C to 85°C.
AVAILABLE OPTIONS
V
IO
max
STABLE
PACKAGE
T
A
V
IO
max
AT 25°C
STABLE
GAIN
CERAMIC DIP
(JG)
CHIP CARRIER
(FK)
PLASTIC DIP
(P)
25 µV
1 — — OP27EP
25
°
Cto85
°
C
25
µ
V
5 — — OP37EP
–
25°C
to
85°C
100 µV
1 — — OP27GP
100
µ
V
5 — — OP37GP
25 µV
1 OP27AJG OP27AFK —
55
°
Cto125
°
C
25
µ
V
5 OP37AJG OP37AFK —
–
55°C
to
125°C
100 µV
1 OP27CJG — —
100
µ
V
5 OP37CJG — —
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.
1
2
3
4
8
7
6
5
V
IO
TRIM
IN–
IN +
V
CC –
V
IO
TRIM
V
CC+
OUT
NC
JG OR P PACKAGE
(TOP VIEW)
IN+
IN –
OUT
V
IO
TRIM
18
6
3
2
symbol
3 2 1 20 19
910111213
4
5
6
7
8
18
17
16
15
14
NC
V
CC+
NC
OUT
NC
NC
1N–
NC
IN+
NC
FK PACKAGE
(TOP VIEW)
NC
NC
NC
NC
NC
NC
NC – No internal connection
CC –
V
Pin numbers are for the JG and P packages.
IO
V TRIM
NC
IO
V TRIM
+
–
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