Datasheet

LTC1992 Family
13
1992fb
TYPICAL PERFORMANCE CHARACTERISTICS
Single-Ended Input Large-Signal
Step Response
Single-Ended Input Large-Signal
Step Response
Power Supply Rejection Ratio
vs Frequency
Differential Input Small-Signal
Step Response
Differential Input Small-Signal
Step Response Output Balance vs Frequency
Differential Input Large-Signal
Step Response
Differential Input Large-Signal
Step Response
Common Mode Rejection Ratio
vs Frequency
Applicable to the LTC1992-1 only.
2μs/DIV
V
OUTDIFF
(1V/DIV)
1992 G46
+V
S
= 2.5V
–V
S
= –2.5V
V
OCM
= 0V
+V
IN
= ±1.5V
–V
IN
= 1.5V
C
LOAD
= 0pF
0V
±
20μs/DIV
V
OUTDIFF
(1V/DIV)
1992 G47
+V
S
= 2.5V
–V
S
= –2.5V
V
OCM
= 0V
+V
IN
= ±1.5V
–V
IN
= 1.5V
C
LOAD
= 10000pF
C
LOAD
= 1000pF
0V
±
FREQUENCY (Hz)
30
CMRR (dB)
90
100
20
10
80
50
70
60
40
100 10k 100k 1M
1992 G48
0
1k
ΔV
AMPCM
ΔV
AMPDIFF
2μs/DIV
V
OUTDIFF
(1V/DIV)
1992 G49
+V
S
= 5V
–V
S
= 0V
V
OCM
= 2.5V
+V
IN
= 0V TO 4V
–V
IN
= 2V
C
LOAD
= 0pF
2.5V
20μs/DIV
V
OUTDIFF
(1V/DIV)
1992 G50
+V
S
= 5V
–V
S
= 0V
V
OCM
= 2.5V
+V
IN
= 0V TO 4V
–V
IN
= 2V
C
LOAD
= 10000pF
C
LOAD
= 1000pF
2.5V
FREQUENCY (Hz)
10
40
PSRR (dB)
50
60
70
80
100 1k 10k 100k 1M
1992 G51
30
20
10
0
90
100
–V
S
+V
S
ΔV
S
ΔV
AMPDIFF
1μs/DIV
V
OUTDIFF
(50mV/DIV)
1992 G52
+V
S
= 2.5V
–V
S
= –2.5V
V
OCM
= 0V
+V
IN
= ±50mV
–V
IN
= 50mV
C
LOAD
= 0pF
0V
±
10μs/DIV
V
OUTDIFF
(50mV/DIV)
1992 G53
+V
S
= 2.5V
–V
S
= –2.5V
V
OCM
= 0V
+V
IN
= ±50mV
–V
IN
= 50mV
C
LOAD
= 10000pF
C
LOAD
= 1000pF
0V
±
FREQUENCY (Hz)
110
–40
OUTPUT BALANCE (dB)
–60
–80
100 1k 10k 100k 1M
1992 G54
–20
0
–100
ΔV
OUTCM
ΔV
OUTDIFF