LT1122 Datasheet, PDF (6/8 Pages) Linear Technology – Fast Settling, JFET Input Operational Amplifier

LT1122
TYPICAL PERFOR A CE CHARACTERISTICS
Distribution of Input Offset
Voltage
800
3370 UNITS TESTED
IN ALL PACKAGES
600
V_S = ±15V
T_A = 25°C
(NOT WARMED UP)
400
200
0
–900 –500 –100 100
500
900
INPUT OFFSET VOLTAGE (µV)
LT1122•TPC05
Warm-up Drift
250
V_S = ±15V
TA = 25°C
200
SO PACKAGE
N PACKAGE
150
J PACKAGE
100
Input Bias and Offset Currents
Over Temperature
100K
30K
V_S = ±15V
10K
V_CM = 0V
3K
BIAS
1K
CURRENT
300
100
30
OFFSET
10
CURRENT
3
1
0
25
50
75 100 125
CHIP TEMPERATURE (°C)
LT1122•TPC06
Noise Spectrum
1000
V_S = ±15V
TA = 25°C
100
Bias and Offset Currents Over
The Common-Mode Range
120
100
V_S = ±15V
TA = 25°C
(NOT-WARMED UP)
80
BIAS
60
CURRENT
40
OFFSET
CURRENT
20
0
–15 –10 –5 0
5 10 15
COMMON-MODE INPUT VOLTAGE (V)
LT1122•TPC07
0.1Hz to 10Hz Noise
50
IN STILL AIR (SO PACKAGE
SOLDERED ONTO BOARD)
1
0
1
2
3
TIME AFTER POWER ON (MINUTES)
Total Harmonic Distortion
+ Noise vs Frequency
Inverting Gain
LT1122•TPC08
0.1
T_A = 25°C
V_S = ±15V
Z_L = 5k//15pF
V_O = 7V RMS
0.01
A_V = –50
0.001
A_V = –10
A_V = –1
0.0001
20
100
1k
FREQUENCY (Hz)
10k 20k
LT1122•TPC11
6
10
1 3 10 30 100 300 1k 3k 10k
FREQUENCY (Hz)
Total Harmonic Distortion
+ Noise vs Frequency
Non-Inverting Gain
LT1122•TPC09
0.1
0
2
4
6
8
10
TIME (SECONDS)
LT1122•TPC10
Intermodulation Distortion
(CCIF Method) vs Frequency
LT1122 and LF156*
0.1
0.01
A_V = +50
A_V = +10
0.001
A_V = +1
0.0001
20 100
T_A = 25°C
V_S = ±15V
Z_L = 5k//15pF
V_O = 7V RMS
1k
10k 20k
FREQUENCY (Hz)
LT1122•TPC12
LF156
0.01
0.001
V_S = ±15V
T_A = 25°C
A_V = –10
V_O = 7V RMS
Z_L = 5k//15pF
LT1122
0.0001
3k
10k
20k
FREQUENCY (Hz)
*SEE LT1115 DATA SHEET FOR DEFINITION
OF CCIF TESTING
LT1122•TPC13