LM399MH

更新时间： 2024-11-23 13:09:23

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凌特 - Linear		/
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数据手册

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LM399MH 数据手册

LTZ1000/LTZ1000A

Ultra Precision Reference

FeaTures

DescripTion

1.2µV Noise

The LTZ1000 and LTZ1000A are ultra-stable temperature

controllable references. They are designed to provide 7V

outputs with temperature drifts of 0.05ppm/°C, about

P-P

2µV/√kHr Long-Term Stability

Very Low Hysteresis

0.05ppm/°C Drift

1.2µV of noise and long-term stability of 2µV/√kHr.

P-P

Temperature Stabilized

Included on the chip is a subsurface zener reference, a

heater resistor for temperature stabilization, and a tem-

perature sensing transistor. External circuitry is used to

set operating currents and to temperature stabilize the

reference. This allows maximum flexibility and best long-

term stability and noise.

400°C/W Thermal Resistance for LTZ1000A Reduces

Insulation Requirements

Specified for –55°C to 125°C Temperature Range

Offered in TO-99 package

applicaTions

The LTZ1000 and LTZ1000A references can provide su-

perior performance to older devices such as the LM199,

provided that the user implements the heater control and

properly manages the thermal layout. To simplify thermal

insulation, the LTZ1000A uses a proprietary die attach

method to provide significantly higher thermal resistance

than the LTZ1000.

Voltmeters

Calibrators

Standard Cells

Scales

Low Noise RF Oscillators

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Typical applicaTion

Low Noise Reference

Long-Term Stability

LTZ1000

≥ 10V

OUTPUT

1N4148

30k

LT^®1006

–

120Ω

0.02µF

–2

1000 TA01

DAYS

LONG-TERM STABILITY OF A TYPICAL DEVICE FROM TIME = 0

WITH NO PRECONDITIONING OR AGING

1000 TA01b

1000afd

12 3 4 5 6 7 8

中文翻译

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