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LT1389

OUTPUT

TEMPERATURE COEFFICIENT

TEMPERATURE

VOLTAGE

ACCURACY (%)

(ppm/

°C)

PART TYPE

PART MARKING

°C to 70°C

1.250

0.05

LT1389ACS8-1.25

389A12

1.250

0.05

LT1389BCS8-1.25

389B12

2.500

0.05

LT1389BCS8-2.5

389B25

4.096

0.075

LT1389BCS8-4.096

1389B4

5.000

0.075

LT1389BCS8-5

1389B5

ORDER PART

NUMBER

(Note 1)

Operating Current

1.25V ............................................................... 20mA

2.5V ................................................................. 20mA

4.096V ............................................................. 10mA

5V .................................................................... 10mA

Forward Current .................................................. 20mA

Operating Temperature Range ..................... 0

°C to 70°C

Storage Temperature Range (Note 2) ... – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

S8 PART MARKING

LT1389ACS8-1.25

LT1389BCS8-1.25

LT1389BCS8-2.5

LT1389BCS8-4.096

LT1389BCS8-5

389A12

389B12

389B25

*Connected internally. Do Not Connect external circuitry to these pins.

Consult factory for Industrial and Military grade parts.

TJMAX = 125°C, θJA = 190°C/ W

TOP VIEW

S8 PACKAGE

8-LEAD PLASTIC SO

DNC*

GND

DNC*

VOUT

GND

AVAILABLE OPTIO S

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 3)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Reverse Breakdown Voltage

LT1389ACS8/LT1389BCS8 (IR = 0.8µA)

1.24937

1.250

1.25062

– 0.05

0.05

LT1389ACS8 (IR = 0.8µA)

1.24849

1.250

1.25149

– 0.12

0.12

LT1389BCS8 (IR = 0.8µA)

1.24762

1.250

1.25237

– 0.19

0.19

Reverse Breakdown Change

0.8

µA ≤ IR ≤ 200µA

0.20

0.4

with Current (Note 4)

0.20

1.0

200

µA ≤ IR ≤ 2mA

0.3

1.0

0.3

2.0

Minimum Operating Current

0.6

µA

Temperature Coefficient

LT1389ACS8 (IR = 0.8µA)

ppm/

°C

LT1389BCS8 (IR = 0.8µA)

ppm/

°C

Reverse Dynamic Impedance (Note 5)

0.8

µA ≤ IR ≤ 2mA

0.25

0.7

Ω

0.25

1.5

Ω

Low Frequency Noise (Note 6)

IR = 0.8µA, 0.1Hz ≤ f ≤ 10Hz

µVP-P

1.25V ELECTRICAL CHARACTERISTICS

1389B4

1389B5

PACKAGE/ORDER I FOR ATIO

ABSOLUTE

AXI U

RATI GS

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