OP27A, OP27C, OP27E, OP27G
OP37A, OP37C, OP37E, OP37G
LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS100B – FEBRUARY 1989 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
†
INPUT OFFSET VOLTAGE OF
REPRESENTATIVE INDIVIDUAL UNITS
vs
FREE-AIR TEMPERATURE
100
∆V
IO – Change in Input Offset Voltage –
µ
V
80
VIO – Input Offset Voltage –
µV
60
40
20
0
OP27E/37E
– 20
– 40
– 60
– 80
– 100
– 50
– 25
0
25
50
75
100
125
OP27G/37G
OP27C/37C
OP27A/37A
OP27A/37A
VCC
±
=
±
15 V
OP27C/37C
10
OP27CP/GP
OP37CP/GP
VCC
±
=
±
15 V
TA = 25°C
WARM-UP CHANGE IN
INPUT OFFSET VOLTAGE
vs
ELAPSED TIME
5
OP27AP/EP
OP37AP/EP
0
1
2
3
4
5
Time After Power On – minutes
TA – Free-Air Temperature –
°C
Figure 1
Figure 2
LONG-TERM DRIFT OF INPUT OFFSET VOLTAGE OF
REPRESENTATIVE INDIVIDUAL UNITS
6
∆V
IO – Change in Input Offset Voltage –
µ
V
0.2-µV/mo Trend Line
4
2
0
–2
–4
0.2-µV/mo Trend Line
–6
0
1
2
3
4
5
6
7
8
Time – months
Figure 3
† Data for temperatures below – 25°C and above 85°C are applicable to the OP27A, OP27C, OP37A, and OP37C only.
2–8
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443
•
•
TI [ TEXAS INSTRUMENTS ]
