Datasheet

3
LT1634
1634fb
The ● denotes specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Reverse Breakdown Voltage LT1634ACS8/LT1634BCMS8/LT1634BCS8/ 1.24937 1.250 1.25062 V
LT1634AIS8/LT1634BIS8 (I
R
= 10µA) –0.05 0.05 %
LT1634CCZ (I
R
= 10µA) 1.24750 1.250 1.25250 V
–0.20 0.20 %
LT1634ACS8 (I
R
= 10µA) ● 1.24849 1.250 1.25149 V
–0.12 0.12 %
LT1634AIS8 (I
R
= 10µA) ● 1.24781 1.250 1.25218 V
–0.175 0.175 %
LT1634BCS8/LT1634BCMS8 (I
R
= 10µA) ● 1.24718 1.250 1.25281 V
–0.225 0.225 %
LT1634BIS8 (I
R
= 10µA) ● 1.24547 1.250 1.25453 V
–0.362 0.362 %
LT1634CCZ (I
R
= 10µA) ● 1.24531 1.250 1.25469 V
–0.375 0.375 %
Reverse Breakdown Change 10µA ≤ I
R
≤ 2mA 0.25 1 mV
with Current (Note 4)
● 0.30 2 mV
2mA ≤ I
R
≤ 20mA 2 8 mV
● 210 mV
Minimum Operating Current ● 7 µA
Temperature Coefficient (Note 8) LT1634A, I
R
= 10µA ● 4 10 ppm/°C
LT1634B/LT1634C, I
R
= 10µA ● 10 25 ppm/°C
Reverse Dynamic Impedance (Note 5) 10µA ≤ I
R
≤ 2mA 0.125 0.5 Ω
● 0.150 1.0 Ω
Low Frequency Noise (Note 6) I
R
= 10µA, 0.1Hz ≤ f ≤ 10Hz 10 µV
P-P
Hysteresis (Note 7) ∆T = –40°C to 85°C 160 ppm
∆T = 0°C to 70°C 40 ppm
TEMPERATURE COEFFICIENT
PACKAGE TYPE
TEMPERATURE ACCURACY (%) (ppm/°C) MS8 S8 Z
0°C to 70°C 0.05 10 LT1634ACS8-1.25
LT1634ACS8-2.5
LT1634ACS8-4.096
LT1634ACS8-5
–40°C to 85°C 0.05 10 LT1634AIS8-1.25
LT1634AIS8-2.5
LT1634AIS8-4.096
LT1634AIS8-5
0°C to 70°C 0.05 25 LT1634BCMS8-1.25 LT1634BCS8-1.25
LT1634BCMS8-2.5 LT1634BCS8-2.5
LT1634BCS8-4.096
LT1634BCS8-5
–40°C to 85°C 0.05 25 LT1634BIS8-1.25
LT1634BIS8-2.5
LT1634BIS8-4.096
LT1634BIS8-5
0°C to 70°C 0.20 25 LT1634CCZ-1.25
LT1634CCZ-2.5
LT1634CCZ-4.096
LT1634CCZ-5
AVAILABLE OPTIO S
U
1.25V ELECTRICAL CHARACTERISTICS