6.4 Recommended Operating Conditions (continued)

over operating free-air temperature range, all the voltages ratings are specified with respect to REF_GND pin voltage

(unless otherwise noted)

MIN

NOM

MAX

UNIT

Current

OP-STBL Current (Output Logic Low, Active HIGH output)

0

5

mA

TA

Operating temperature

0

70

°C

6.5 Electrical Characteristics

At VDD = 10V, VHEATER = 30V, CREF_Z = 10µF, CVDD = 1µF, IL = 0 mA, minimum and maximum specifications across

supported temperature range, typical specifications TA = 25℃; unless otherwise noted

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

ACCURACY AND DRIFT

Output voltage

TA = 25℃

7.6

V

Output voltage

accuracy

TA = 25℃

–50

50

mV

Output voltage

temperature

coefficient

0.05

0.2

ppm/

℃

HYSTERESIS AND LONG-TERM STABILITY

Long-term stability

0 to 336 Hours (14 days), TA = 25℃, TSET = 115℃

10

ppm

336 Hours to 1000 Hours, TA = 25℃, TSET = 115℃

0.9

enp-p

Low frequency noise

ƒ = 0.1Hz to 10Hz

0.16

ppmp-p

NOISE

en

Output voltage noise

ƒ = 10Hz to 100Hz,

0.6

uVrms

LINE AND LOAD REGULATION

ΔVREF_Z/

ΔVDD

Line regulation

VDD = 10V to 16.5V

4

10

ppm/V

POWER SUPPLY

VDD

Input voltage

10

16.5

V

VHEATER

Input voltage

(HEATP - HEATM)

10

42

V

IHEATER

Start up current

335

mA

Quiescent current

TA = 25℃, TSET = 115℃, VHEATER = 10V

75

TA = 25℃, TSET = 115℃, VHEATER = 42V

18

IVDD

Quiescent current

15

mA

TURNON TIME

Start-up

VREF_Z

REF_Z settled within ±3ppm

100

sec

Heater Turn-on time

OP-STBL = 1

250

ms

STABLE CAPACITANCE RANGE

Input capacitor range

0.1

µF

Output capacitor

range (1)

10

100

µF

(1)

ESR for the capacitor can range from 10 mΩ to 400 mΩ

REF80

SNAS856 – SEPTEMBER 2024

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