Datasheet
SLOS214C − OCTOBER 1998 − REVISED MARCH 2007
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 3
INPUT OFFSET VOLTAGE
vs
FREE-AIR TEMPERATURE
3
2.5
2
1.5
1
0.5
−40 −20 0 20 40 60
T
A
− Free-AIR Temperature − _C
V
0
IO
− Input Offset Voltage − mV
80 100
3.5
Preamp
V
CC
= ±15 V
PGA
V
CC
= ±5 V
Preamp
V
CC
= ±5 V
V
CC
= ±15 V
PGA
Figure 4
STANDBY SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
Standby Supply Current − mA
2
1.5
1
0.5
0
−0.5
−40 −20 0 20 40 60 80 100
Preamp − I
CC
Preamp − I
EE
PGA − I
EE
PGA − I
CC
T
A
− Free-Air Temperature − _C
V
CC
= ±15 V
Figure 5
QUIESCENT SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
9
8
7
6
5
−40 −20 0 20 40 60
T
A
− Free-Air Temperature − _C
4
Supply Current −
3
Preamp
mAI
CC
−
80 100
V
CC
= ±15 V
Preamp
V
CC
= ±5 V
PGA
V
CC
= ±5 V
Per Channel
PGA
V
CC
= ±15 V
Figure 6
PSRR
vs
FREQUENCY
120
100
80
60
40
20
10 100 1k 10k 100k 1M
0
PSRR − Power-Supply Rejection Ratio − dB
f − Frequency − Hz
V
CC
= ±15 V & ±5 V
10M
PGA - V
CC
+
PGA - V
CC
−
Preamp - V
CC
+ & V
CC
−
100M
Figure 7
INPUT BIAS CURRENT
vs
FREE-AIR TEMPERATURE
Iib − Input Bias Current − uA
3
2.5
2
1.5
1
0
−40 −20 0 20 40 60 80
100
PGA: V
CC
= ±15 V and ±5 V
T
A
− Free-Air Temperature − _C
Pre−Amp: V
CC
= ±15 V
Pre−Amp: V
CC
= ±5 V
0.5
Figure 8
100
10
1
100k 10M 100M
0.1
f − Frequency − Hz
1M
− Output Impedance −Z
o
Ω
500M
0.01
V
CC
= ±15 V & ±5 V
V
|(PP)
= 2 V
PGA: G = −22 dB
PGA: G = +20 dB
Preamp: G = +2
CLOSED-LOOP OUTPUT
IMPEDANCE vs
FREQUENCY
Figure 9
PREAMP INPUT COMMON-MODE
VOLTAGE RANGE
vs
SUPPLY VOLTAGE
15
13
11
9
7
579111315
±V
CC
− Supply Voltage − V
−
5
Input Common-Mode Range −
3
T
A
= 25 _C
V
+
V
ICR
−
Figure 10
PREAMP OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
14
12
10
8
6
4
57 9111315
|V V
2
− Output Voltage Swing −
± V
CC
− Supply Voltage − V
O
|
R
L
= 250 Ω
T
A
= 25° C
R
L
= 1 kΩ
Figure 11
PREAMP CMRR
vs
FREQUENCY
CMRR − Common-Mode Rejection Ratio − dB
f − Frequency − Hz
100
80
60
40
20
0
100 1k 10k 100k 1M 10M 100M
V
CC
= ±15 V and ±5 V