LT1634 available opTionsTEMPERATURE COEFFICIENTPACKAGE TYPETEMPERATUREACCURACY (%)(ppm/°C)MS8S8Z 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 1.25v elecTrical characTeris TicsThe l denotes the specifications which apply over the fulloperating temperature range, otherwise specifications are at TA = 25°C. (Note 3)PARAMETERCONDITIONSMINTYPMAXUNITS Reverse Breakdown Voltage LT1634ACS8/LT1634BCMS8/LT1634BCS8/ 1.24937 1.250 1.25062 V LT1634AIS8/LT1634BIS8 (IR = 10µA) –0.05 0.05 % LT1634CCZ (IR = 10µA) 1.24750 1.250 1.25250 V –0.20 0.20 % LT1634ACS8 (IR = 10µA) l 1.24849 1.250 1.25149 V –0.12 0.12 % LT1634AIS8 (IR = 10µA) l 1.24781 1.250 1.25218 V –0.175 0.175 % LT1634BCS8/LT1634BCMS8 (IR = 10µA) l 1.24718 1.250 1.25281 V –0.225 0.225 % LT1634BIS8 (IR = 10µA) l 1.24547 1.250 1.25453 V –0.362 0.362 % LT1634CCZ (IR = 10µA) l 1.24531 1.250 1.25469 V –0.375 0.375 % Reverse Breakdown Change 10µA ≤ IR ≤ 2mA 0.25 1 mV with Current (Note 4) l 0.30 2 mV 2mA ≤ IR ≤ 20mA 2 8 mV l 2 10 mV Minimum Operating Current l 7 µA Temperature Coefficient (Note 8) LT1634A, IR = 10µA l 4 10 ppm/°C LT1634B/LT1634C, IR = 10µA 10 25 ppm/°C Reverse Dynamic Impedance (Note 5) 10µA ≤ IR ≤ 2mA l 0.125 0.5 Ω 0.150 1.0 Ω Low Frequency Noise (Note 6) IR = 10µA, 0.1Hz ≤ f ≤ 10Hz 10 µVP-P Hysteresis (Note 7) ∆T = –40°C to 85°C 160 ppm ∆T = 0°C to 70°C 40 ppm 1634ff For more information www.linear.com/LT1634 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Applications Information Typical Application Related Parts