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

V

REF165 initial accuracy

–0.3

0.06

0.3

%

VREF25

REF25 initial voltage

2.494

2.5

2.506

V

REF25 initial accuracy

–0.24

0.05

0.24

%

Temperature coefficient

REF165 reference, REF25 reference

20

ppm/

℃

Load regulation

REF165 reference, –2mA < IREF165 < 5mA

–360

µV/mA

REF25 reference, –2mA < IREF25 < 5mA

–475

Line regulation

5V < VS < 10V

REF165 reference

16

µV/V

REF25 reference

30

Short-circuit current

–14

mA

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

BW

–3dB bandwidth (4) (3)

I1 input

II2 = IREF, II1 = 100pA

12

kHz

II2 = IREF, II1 = 1nA

90

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

20

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

55

II1 = IREF, II2 = 1µA

0.55

MHz

II1 = IREF, II2 = 10µA to 10mA

6

MHz

Step response, I1 (5) (3)

II2 = IREF,

II1 = 100pA to 1nA

Rising

9

µs

Falling

30

II2 = IREF,

II1 = 1nA to 10nA

Rising

1.2

Falling

5

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

IQ

Quiescent current

IOUTA = IOUTB = 0mA

9.5

10

mA

TA = –40°C to +125°C

13

(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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