OP27 Data Sheet
Rev. H | Page 6 of 21
TYPICAL ELECTRICAL CHARACTERISTICS
V
S
= ±15 V, T
A
= 25°C unless otherwise noted.
Table 4.
Parameter Symbol Test Conditions OP27N Typical Unit
AVERAGE INPUT OFFSET VOLTAGE DRIFT
1
TCV
OS
or TCV
OSn
Nulled or unnulled, R
P
= 8 kΩ to 20 kΩ 0.2 µV/°C
AVERAGE INPUT OFFSET CURRENT DRIFT TCI
OS
80 pA/°C
AVERAGE INPUT BIAS CURRENT DRIFT TCI
B
100 pA/°C
INPUT NOISE VOLTAGE DENSITY e
n
f
O
= 10 Hz 3.5 nV/√Hz
f
O
= 30 Hz 3.1 nV/√Hz
f
O
= 1000 Hz 3.0 nV/√Hz
INPUT NOISE CURRENT DENSITY i
n
f
O
= 10 Hz 1.7 pA/√Hz
f
O
= 30 Hz 1.0 pA/√Hz
f
O
= 1000 Hz 0.4 pA/√Hz
INPUT NOISE VOLTAGE SLEW RATE e
np-p
0.1 Hz to 10 Hz 0.08 µV p-p
SR R
L
≥ 2 kΩ 2.8 V/µs
GAIN BANDWIDTH PRODUCT GBW 8 MHz
1
Input offset voltage measurements are performed by automated test equipment approximately 0.5 seconds after application of power.
Data Sheet OP27
Rev. H | Page 7 of 21
ABSOLUTE MAXIMUM RATINGS
Table 5.
Parameter Rating
Supply Voltage ±22 V
Input Voltage
1
±22 V
Output Short-Circuit Duration Indefinite
Differential Input Voltage
2
±0.7 V
Differential Input Current
2
±25 mA
Storage Temperature Range −65°C to +150°C
Operating Temperature Range
OP27A (J, Z)
−55°C to +125°C
OP27E (Z) −25°C to +85°C
OP27E (P) 0°C to 70°C
OP27G (P, S, J, Z) −40°C to +85°C
Lead Temperature Range (Soldering, 60 sec) 300°C
Junction Temperature
−65°C to +150°C
1
For supply voltages less than ±22 V, the absolute maximum input voltage is
equal to the supply voltage.
2
The inputs of the OP27 are protected by back-to-back diodes. Current
limiting resistors are not used in order to achieve low noise. If differential
input voltage exceeds ±0.7 V, the input current should be limited to 25 mA.
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
THERMAL RESISTANCE
θ
JA
is specified for the worst-case conditions, that is, θ
JA
is
specified for device in socket for TO-99, CERDIP, and PDIP
packages; θ
JA
is specified for device soldered to printed circuit
board for SOIC package.
Absolute maximum ratings apply to both dice and packaged
parts, unless otherwise noted.
Table 6.
Package Type θ
JA
θ
JC
Unit
8-Lead Metal Can (TO-99) (J) 150 18 °C/W
8-Lead CERDIP (Z) 148 16 °C/W
8-Lead PDIP (P) 103 43 °C/W
8-Lead SOIC_N (S) 158 43 °C/W
ESD CAUTION
OP27 Data Sheet
Rev. H | Page 8 of 21
TYPICAL PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
30
0.01 0.1 1 10
100
FREQUENCY (Hz)
GAIN (dB)
TEST TIME OF 10sec FURTHER
LIMITS LOW FREQUENCY
(<0.1Hz) GAIN
00317-004
Figure 4. 0.1 Hz to 10 Hz p-p Noise Tester Frequency Response
10
9
8
7
6
5
4
3
2
1
1 10 100
1k
FREQUENCY (Hz)
VOLTAGE NOISE (nV/Hz)
I/F CORNER = 2.7Hz
T
A
= 25qC
V
S
= r15V
00317-005
Figure 5. Voltage Noise Density vs. Frequency
INSTRUMENTATION
RANGE TO DC
AUDIO RANGE
TO 20kHz
741
OP27 I/F CORNER
I/F CORNER = 2.7Hz
I/F CORNER
LOW NOISE
AUDIO OP AMP
100
10
1
1 10 100
1k
FREQUENCY (Hz)
VOLTAGE NOISE (nV/Hz)
00317-006
Figure 6. A Comparison of Op Amp Voltage Noise Spectra
10
1
0.1
0.01
100 1k 10k
100k
BANDWIDTH (Hz)
RMS VOLTAGE NOISE (PV)
T
A
= 25qC
V
S
= r15V
00317-007
Figure 7. Input Wideband Voltage Noise vs. Bandwidth (0.1 Hz to Frequency
Indicated)
100
10
1
100 1k
10k
SOURCE RESISTANCE (:)
TOTAL NOISE (nV/Hz)
T
A
= 25qC
V
S
= r15V
R2
R1
R
S
– 2R1
RESISTOR NOISE ONLY
AT 1kHz
AT 10Hz
00317-008
Figure 8. Total Noise vs. Sourced Resistance
5
4
3
2
1
–50 0–25 100755025
125
TEMPERATURE (qC)
VOLTAGE NOISE (nV/Hz)
AT 10Hz
AT 1kHz
V
S
= r15V
00317-009
Figure 9. Voltage Noise Density vs. Temperature

OP27GSZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers LOW-NOISE PREC IC 2.8V/uS
Lifecycle:
New from this manufacturer.
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