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L212

1.225V MICROPOWER VOLTAGE REFERENCE

STMicroelectronics 

TS821

ELECTRICAL CHARACTERISTICS

TS821A (1% Precision)

Tamb = 25oC (unless otherwise specified)

Symbol

Parameter

Test Condition

Vk Reverse Breakdown Voltage

Reverse Breakdown Voltage

Tolerance

Ikmin Minimum Operating Current

∆Vref/∆T

∆Vk/∆Ik

Average Temperature Coeffi-

cient

Reverse Breakdown Voltage

Change with Operating Current

Change

Rka Static Impedance

Kvh Long Term Stability

en Wideband Noise

Ik = 100µA @ Tamb = 25oC

I-k4=0o1C0<0µTAam@b < T+a8m5b =oC25oC

Tamb = 25oC

-40oC < T < +85oC

amb

IK = 100µA

-Ik4m0in o<C

Ik < 1mA

< Tamb <

+@85ToCamb

=

25oC

1mA < I < 12mA @ T = 25oC

-40oC

<

k

Tamb

<

+85oC

amb

∆Ik = 45µA to 1mA

ITKa=m1b 0=0µ2Α5o,Ct = 1000hrs

IK = 100µA

10Hz < f < 10kHz

Min.

1.213

-12

-24

Typ.

1.225

40

Max.

1.237

+12

+24

45

50

150

Unit

V

mV

µA

µA

ppm/oC

0.3

0.7

mV

1

2.5

5

mV

7

0.25 0.5

Ω

120

ppm/kHr

200

nV/ Hz

ELECTRICAL CHARACTERISTICS

TS821B (0.5% Precision)

Tamb = 25oC (unless otherwise specified)

Symbol

Parameter

Test Condition

Vk Reverse Breakdown Voltage

Reverse Breakdown Voltage

Tolerance

Ikmin Minimum Operating Current

∆Vref/∆T Average Temperature Coeffi-

cient

Ik = 100µA @ Tamb = 25oC

I-k4=0o1C0<0µTAam@b < T+a8m5b =oC25oC

Tamb = 25oC

-40oC < Tamb < +85oC

IK = 100µA

∆Vk/∆Ik

R

ka

Kvh

en

Reverse Breakdown Voltage

Change with Operating Current

Change

Static Impedance

Long Term Stability

Wideband Noise

-Ik4m0in o<C

Ik < 1mA

< Tamb <

+@85ToCamb

=

25oC

1-4m0AoC<<IkT<am1b 2<m+A85o@C Tamb = 25oC

∆Ik = 45µA to 1mA

ITKa=m1b 0=02µ5AoC, t = 1000hrs

IK = 100µA

10Hz < f < 10kHz

Min.

1.219

-6

-14

Typ.

1.225

40

Max.

1.231

+6

+14

45

50

120

Unit

V

mV

µA

µA

ppm/oC

0.3

0.7

mV

1

2.5

5

mV

7

0.25 0.5

Ω

120

ppm

200

nV/ Hz

3/7

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