Datasheet

8
LT1182/LT1183/LT1184/LT1184F
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
FBP Input Bias Current
vs Temperature
FBP to LCD V
C
Transconductance
vs Temperature
LCD FBP Reference
vs Temperature
TEMPERATURE (°C)
1.214
LCD FBP REFERENCE VOLTAGE (V)
1.234
1.224
1.254
1.244
1.274
1.264
–25 25 75 125
LT1182 • G28
175–50–75 0 50 100 150
TEMPERATURE (°C)
–75
FBP INPUT BIAS CURRENT (µA)
0.6
0.8
1.0
0.9
0.7
0.5
0.3
0.1
125 150
LT1182 • G30
0.4
0.2
0
–25 0–50
25 50
75 100
175
LCD FBN Offset Voltage
vs Temperature
TEMPERATURE (°C)
–27
LCD FBN OFFSET VOLTAGE (mV)
–23
–19
–21
–25
–1
–3
–9
–5
–7
–11
–15
–17
–13
–75 125 150
–25 0–50
25 50
75 100
175
FBN to LCD V
C
Transconductance
vs Temperature
LT1184/84F REF Output
Impedance vs Temperature
TEMPERATURE (°C)
–75
FBN TO LCD V
C
TRANSCONDUCTANCE (µmhos)
1000
1200
125
LT1182 • G34
800
600
400
–25
25
75
175
900
1100
700
500
100
–50
0
50
150
TEMPERATURE (°C)
–75
FBP TO LCD V
C
TRANSCONDUCTANCE (µmhos)
1100
1300
125
LT1182 • G33
900
700
500
–25
25
75
175
1000
1200
800
600
100
–50
0
50
150
TEMPERATURE (°C)
0
FBP REFERENCE VOLTAGE LINE REGULATION (%/V)
0.010
0.005
0.020
0.015
0.03
0.025
–25 25 75 125
LT1182 • G29
175–50–75 0 50 100 150
FBP Reference Voltage Line
Regulation vs Temperature
LT1183 REF Output Impedance
vs Temperature
TEMPERATURE (°C)
–75
LT1183 REF 0UTPUT IMPEDANCE (Ω)
50
60
70
65
55
45
35
25
125 150
LT1182 • G35
40
30
20
–25 0–50
25 50
75 100
175
TEMPERATURE (°C)
LT1184/84F REF OUTPUT IMPEDANCE (Ω)
20
25
30
LT1182 • G36
15
10
5
–75 125 150
–25 0–50
25 50
75 100
175
FBN Input Bias Current
vs Temperature
TEMPERATURE (°C)
0
FBN INPUT BIAS CURRENT (µA)
1.0
0.5
2.0
1.5
3.0
2.5
–25 25 75 125
LT1182 • G32
175–50–75 0 50 100 150