LM399 datasheet(3/16 Pages) AD

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Data Sheet

ADR1399

SPECIFICATIONS

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Rev. A | 3 of 16

ELECTRICAL CHARACTERISTICS

TA = 25°C, unless otherwise noted.

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

ZENER REFERENCE VOLTAGE

3 mA ≤ reference current (IREF) ≤ 13 mA

6.75

7.05

7.30

CHANGE IN REFERENCE VOLTAGE WITH CURRENT ΔVZ

TO-46, 3 mA ≤ IREF ≤ 13 mA

0.4

0.8

LCC

0.11

0.25

DYNAMIC IMPEDANCE

TO-46, 3 mA ≤ IREF ≤ 13 mA

0.04

0.08

Ω

LCC

0.011

0.025

Ω

TEMPERATURE COEFFICIENT

dV/dT

IREF = 3 mA, heater voltage (VH) = 30 V, TA = 0℃ to

70°C

0.2

ppm/°C

REFERENCE NOISE

eN p-p

IREF = 3 mA, 0.1 Hz < f < 10 Hz

0.2

ppm p-p

IREF = 3 mA, 0.1 Hz < f < 10 Hz

1.44

µV p-p

eN rms

10 Hz < f < 1 kHz

1.84

µV rms

IREF = 3 mA

Frequency = 0.1 Hz

200

nV/√Hz

Frequency = 10 Hz

nV/√Hz

Frequency = 1 kHz

nV/√Hz

LONG-TERM STABILITY

dVZ /dt

VH = 30 V, 22°C ≤ TA ≤ 28°C, 1000 Hrs, IREF = 3 mA

ppm/√kHr

HEATER SUPPLY CURRENT, STILL AIR2

TO-46, TA = 25°C, VH = 30 V, IREF = 3 mA

8.5

TA = –55°C

281

LCC, TA = 25°C, VH = 30 V, IREF = 3 mA

TA = –55°C

HEATER START-UP CURRENT

IHS

VH = 9.5 V to 30 V

110

140

HEATER SUPPLY VOLTAGE

9.5

WARM-UP TIME

tHOT

TO-46, LCC socketed, to ±0.05%, VH = 30 V

0.1

sec

To ±20 ppm

sec

To ±10 ppm

sec

1 Guarantee by design, not 100% production tested.

2 Guarantee correlated to moving air production test.

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