LM4120AIM5-2.0 datasheet(5/26 Pages) TI1

Part #	LM4120AIM5-2.0

Description	Precision Micropower Low Dropout Voltage Reference

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LM4120

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SNVS049D – FEBRUARY 2000 – REVISED JULY 2015

Electrical Characteristics (continued)

unless otherwise specified, VIN = 3.3 V, ILOAD = 0, COUT = 0.01 µF, TA = Tj = 25°C.

PARAMETER

TEST CONDITIONS

MIN (1)

TYP (2)

MAX (1)

UNIT

0.1 Hz to 10 Hz

20

VN

Output(4)

µVPP

10 Hz to 10 kHz

36

160

250

IS

Supply current

µA

–40°C

≤ TA ≤ 85°C

275

Enable = 0.4 V

1

Power-down supply

ISS

–40°C

≤ TJ ≤ 85°C

µA

–40°C

≤ TA ≤ 85°C

current

2

Enable = 0.2 V

2.4

VH

Logic high input voltage

V

–40°C

≤ TA ≤ 85°C

2.4

0.4

VL

Logic low input voltage

V

–40°C

≤ TA ≤ 85°C

0.2

7

IH

Logic high input current

µA

–40°C

≤ TA ≤ 85°C

15

IL

Logic low input current

0.1

µA

15

VIN = 3.3 V, VOUT = 0

–40°C

≤ TA ≤ 85°C

6

30

ISC

Short circuit current

mA

17

VIN = 12 V, VOUT = 0

–40°C

≤ TA ≤ 85°C

6

30

Hyst

Thermal hysteresis (5)

–40°C

≤ TA ≤ 125°C

0.5

mV/V

ΔVOUT

Long term stability (6)

1000 hrs @ 25°C

100

ppm

3 V, 3.3 V, 4.096 V, AND 5 V

Output voltage initial

accuracy

LM4120A-3.000

±0.2%

LM4120A-3.300

LM4120A-4.096

VOUT

LM4120A-5.000

LM4120-3.000

LM4120-3.300

±0.5%

LM4120-4.096

LM4120-5.000

TCVOUT/°C

Temperature coefficient

–40°C

≤ TA ≤ 125°C

14

50

ppm/°c

0.0007

0.008

ΔVOUT/ΔVIN

Line regulation

(VOUT + 1 V) ≤ VIN ≤ 12 V

%/V

–40°C

≤ TA ≤ 85°C

0.01

0.03

0.08

0 mA

≤ ILOAD ≤ 1 mA

–40°C

≤ TA ≤ 85°C

0.17

0.01

0.04

ΔVOUT/ΔILOAD

Load regulation

1 mA

≤ ILOAD ≤ 5 mA

%/mA

–40°C

≤ TA ≤ 85°C

0.1

–1 mA

≤ ILOAD ≤ 0 mA

0.04

0.12

–5 mA

≤ ILOAD ≤ –1 mA

0.01

45

65

ILOAD = 0 mA

–40°C

≤ TA ≤ 85°C

80

120

150

VIN−VOUT

Dropout voltage (3)

ILOAD = 1 mA

mV

–40°C

≤ TA ≤ 85°C

180

210

ILOAD = 5 mA

–40°C

≤ TA ≤ 85°C

250

(4)

Output noise voltage is proportional to VOUT. VN for other voltage option is calculated using (VN(1.8 V) / 1.8) × VOUT.

VN (2.5 V) = (36 μVPP / 1.8) × 2.5 = 46 μVPP.

(5)

Thermal hysteresis is defined as the change in 25°C output voltage before and after exposing the device to temperature extremes.

(6)

Long term stability is change in VREF at 25°C measured continuously during 1000 hours.

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