LOG200 datasheet(7/42 Pages) TI

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5.5 Electrical Characteristics (continued)

at TA = 25°C, VS = 5V (±2.5V) to 10V (±5V), OUTA RL = 10kΩ connected to VS / 2, OUTB RL = 2kΩ connected to VS / 2,

VCM = VREFA = VS / 2, VREFGND = VS–, II1 = 1µA, and II2 = 1µA (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOLTAGE REFERENCE

VREF165 REF165 initial voltage

1.645

1.65

1.655

REF165 initial accuracy

–0.3

0.06

0.3

VREF25

REF25 initial voltage

2.494

2.5

2.506

REF25 initial accuracy

–0.24

0.05

0.24

Temperature coefficient

REF165 reference, REF25 reference

ppm/

℃

Load regulation

REF165 reference, –2mA < IREF165 < 5mA

–360

µV/mA

REF25 reference, –2mA < IREF25 < 5mA

–475

Line regulation

5V < VS < 10V

REF165 reference

µV/V

REF25 reference

Short-circuit current

–14

Noise

4.2

µVRMS

NOISE

Voltage noise (2) (3)

f = 1kHz, II2 = IREF

II1 = 1nA

2000

nV/√Hz

II1 = 10nA

650

II1 = 100nA

210

II1 = 1µA

110

FREQUENCY RESPONSE

–3dB bandwidth (4) (3)

I1 input

II2 = IREF, II1 = 100pA

kHz

II2 = IREF, II1 = 1nA

II2 = IREF, II1 = 10nA

0.5

MHz

II2 = IREF, II1 = 100nA

2.3

II2 = IREF, II1 = 1µA

6.3

II2 = IREF, II1 = 10µA to 10mA

I2 input

II1 = IREF, II2 = 100pA

0.05

kHz

II1 = IREF, II2 = 1nA

0.5

II1 = IREF, II2 = 10nA

5.2

II1 = IREF, II2 = 100nA

II1 = IREF, II2 = 1µA

0.55

MHz

II1 = IREF, II2 = 10µA to 10mA

MHz

Step response, I1 (5) (3)

II2 = IREF,

II1 = 100pA to 1nA

Rising

µs

Falling

II2 = IREF,

II1 = 1nA to 10nA

Rising

1.2

Falling

II2 = IREF,

II1 = 10nA to 100nA

Rising

0.24

Falling

0.62

II2 = IREF,

II1 = 100nA to 1µA

Rising

0.06

Falling

0.15

II2 = IREF,

II1 = 100µA to 1mA

Rising

0.02

Falling

0.03

POWER SUPPLY

Quiescent current

IOUTA = IOUTB = 0mA

9.5

TA = –40°C to +125°C

(1)

The result of this calculation is dominated by the error from TA = 95°C to 125°C.

(2)

Output referred.

(3)

Measurement parasitic CIN of 3pF nominal.

(4)

Assumes parasitic CIN of 3pF or less.

(5)

Step response is defined as 10% to 90%.

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LOG200

SBOSA28A – AUGUST 2023 – REVISED DECEMBER 2024

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