Datasheet

LT1790
4
1790fb
AVAILABLE OPTIONS
OUTPUT
VOLTAGE
INITIAL
ACCURACY
TEMPERATURE
COEFFICIENT
TEMPERATURE RANGE
0°C TO 70°C –40°C TO 85°C
ORDER PART NUMBER ORDER PART NUMBER
1.250V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-1.25
LT1790BCS6-1.25
LT1790AIS6-1.25
LT1790BIS6-1.25
2.048V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-2.048
LT1790BCS6-2.048
LT1790AIS6-2.048
LT1790BIS6-2.048
2.500V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-2.5
LT1790BCS6-2.5
LT1790AIS6-2.5
LT1790BIS6-2.5
3.000V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-3
LT1790BCS6-3
LT1790AIS6-3
LT1790BIS6-3
3.300V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-3.3
LT1790BCS6-3.3
LT1790AIS6-3.3
LT1790BIS6-3.3
4.096V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-4.096
LT1790BCS6-4.096
LT1790AIS6-4.096
LT1790BIS6-4.096
5.000V 0.05%
0.1%
10ppm/°C
25ppm/°C
LT1790ACS6-5
LT1790BCS6-5
LT1790AIS6-5
LT1790BIS6-5
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage (Notes 3, 4) LT1790A 1.24937
–0.05
1.25 1.25062
0.05
V
%
LT1790B 1.24875
–0.1
1.25 1.25125
0.1
V
%
LT1790AC
l
l
1.24850
–0.12
1.25 1.2515
0.12
V
%
LT1790AI
l
l
1.24781
–0.175
1.25 1.25219
0.175
V
%
LT1790BC
l
l
1.24656
–0.275
1.25 1.25344
0.275
V
%
LT1790BI
l
l
1.24484
–0.4125
1.25 1.25516
0.4125
V
%
Output Voltage Temperature Coeffi cient (Note 5) T
MIN
≤ T
A
≤ T
MAX
LT1790A
LT1790B
l
l
5
12
10
25
ppm/°C
ppm/°C
Line Regulation 2.6V ≤ V
IN
≤ 18V
l
50 170
220
ppm/V
ppm/V
Load Regulation (Note 6) I
OUT
Source = 5mA, V
IN
= 2.8V
l
100 160
250
ppm/mA
ppm/mA
I
OUT
Sink = 1mA, V
IN
= 3.2V
l
120 180
250
ppm/mA
ppm/mA
Minimum Operating Voltage (Note 7) V
IN
, ΔV
OUT
= 0.1%
I
OUT
= 0mA
I
OUT
Source = 5mA
I
OUT
Sink = 1mA
l
l
l
1.95 2.15
2.50
2.90
2.95
V
V
V
V
1.25V ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the specifi ed
temperature range, otherwise specifi cations are at T
A
= 25°C. C
L
= 1μF and V
IN
= 2.6V, unless otherwise noted.