V

ADJ

V

R3

R2

R1

V > 4.8V

i

C1

R1 = 230

Ω,1%

R2 = 10k

Ω,1%

≤ 100Ω

R3 = 600

Ω

Output i mpedance of the LM134, LM234, LM334 at the

”A DJ” pin is approximately

16

lent external resi stance connected to the V

-

pi n. T his

negative resi stance can be reduced by a factor of 5 or

more by i nserting an equi val ent resistor in seri es with

the output

Figure 5 : Low Output Impedance Thermometer

C1

R1

R2

V

ADJ

V

R3

R4

R1 = 15k

Ω

R2 = 300

Ω

R3 = 100

Ω

R4 = 4.5k

Ω

C1 = 2.2nF

≤ 2Ω

FIgure 6 : Low Output Impedance Thermometer

ADJ

V

set

R

V

1

µA

UA776

Ω

Figure 7 : Micropower Bias

ADJ

V

V

C1

R2

LM136

R1

2N2905

R1 = 1.5k

Ω

R2 = 120

Ω

C1 = 0.1

µF

≤ 3mA

+

≥ Vref +200mV

Figure 8 : Low Input Voltage Reference Driver

LM134-LM234-LM334

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