NTE999M 查看數據表（PDF） - NTE Electronics

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NTE999M

Integrared Circuit Programmable Precision Reference

NTE Electronics 

Recommended Operating Conditions

Cathode to Anode Voltage, VKA

Cathode Current, IK

Min Max Unit

Vref

36

V

1.0 100 mA

Electrical Characteristics (TA = +25°C unless otherwise noted)

Characteristic

Reference Input Voltage

VKA = Vref, IK = 10mA

TA = +25°C

Reference Input Voltage Deviation Over

Temperature Range (Note 1, 2)

VKA = Vref, IK = 10mA

Ratio of Change in Reference Input Voltage

to Change in Cathode to Anode Voltage

IK = 10mA,

∆VKA = 10V to Vref

∆VKA = 36V to 10V

Reference Input Current

IK = 10mA, R1 = 10k, R2 = ∞

TA = +25°C

TA = Tlow to Thigh (Note 1)

Reference Input Current Deviation Over

Temperature Range (Note 1)

IK = 10mA, R1 = 10k, R2 = ∞

Minimum Cathode Current for Regulation

VKA = Vref

Off–State Cathode Current

VKA = 36V, Vref = 0V

Dynamic Impedance (Note 3)

VKA = Vref, ∆IK = 1.0mA to 100mA

f ≤ 1.0kHz

Symbol Min

Vref

2.470

∆Vref

–

∆Vref

∆VKA

–

–

Iref

–

–

∆Iref

–

Imin

–

Ioff

–

|Zka|

–

Typ

2.495

3.0

–1.4

–1.0

1.8

–

1.8

0.5

2.6

0.22

Max Unit

2.520 V

17 mV

mV/V

–2.7

–2.0

µA

4.0

5.2

4.0

µA

1.0 mA

1000 nA

0.5

Ω

Note 1: Tlow = 0°C, Thigh = +70°C

Note 2: The deviation parameter ∆Vref is defined as the differences between the maximum

and minimum values obtained over the full operating ambient temperature range

that applies.

∆Vref = VrefMax

–VrefMin

∆TA = T2–T1

Note 2: (cont’d) The average temperature coefficient of the reference input voltage, α Vref, is

defined as:

α Vref ppm =

°

∆Vref

x 106

Vref @ 25°C

∆Vref x 106

∆TA

= ∆TA (Vref @ 25°C)

C

α Vref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower

ambient temperature.

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