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ELECTRICAL CHARACTERISTICS (CONTINUED)

1.5 V

BAND

GAP

REFT

REFB

CT

CB

CTB

THS1230

THS1230

SLAS291B – OCTOBER 2000 – REVISED MARCH 2004

over recommended operating conditions (AV

internal reference, T

REFT, REFB REFERENCE VOLTAGES (all supplies = 3.3 V)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

Upper reference voltage

2.15

Lower reference voltage

1.15

V

0.95

1

1.05

–5%

5%

EXTERNAL REFERENCE

2

2.5

1.05

1.3

V

0.75

1.05

9

k

Ω

INTERNAL OR EXTERNAL REFERENCE

0.1

0.1

µF

10

(1)

The internal reference voltage is not intended for use driving off chip.

Figure 1. Reference Generation

6