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SBAS274H − MARCH 2003 − REVISED MAY 2007

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5

ELECTRICAL CHARACTERISTICS (continued)

All specifications at −40

°C to +85°C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, 2XMODE = low, VCM = 2.0V,

FIFO disabled, and RBIAS = 37kΩ, unless otherwise noted.

PARAMETER

UNIT

MAX

TYP

MIN

TEST CONDITIONS

Voltage Reference(1)

VREF = (VREFP − VREFN)

2.5

3.0

3.2

V

VREFP

3.75

4.0

4.25

V

VREFN

0.75

1.0

1.25

V

VMID

2.3

2.5

2.8

V

VREF drift

Internal reference (REFEN = low)

50

ppm/

°C

Startup time

Internal reference (REFEN = low)

15

ms

Clock Input

Frequency (fCLK)

40

50

MHz

Duty Cycle

fCLK = 40MHz

45

55

%

Digital Input/Output

VIH

0.7 IOVDD

IOVDD

V

VIL

DGND

0.3 IOVDD

V

VOH

IOH = 50µA

IOVDD − 0.5

V

VOL

IOL = 50µA

DGND +0.5

V

Input leakage

DGND < VDIGIN < IOVDD

±10

µA

Power-Supply Requirements

AVDD

4.75

5.25

V

DVDD

2.7

3.3

V

IOVDD

2.7

5.25

V

AVDD current (IAVDD)

REFEN = low

110

135

mA

AVDD current (IAVDD)

REFEN = high

85

105

mA

DVDD current (IDVDD)

45

55

mA

IOVDD current (IIOVDD)

IOVDD = 3V

4

6

mA

Power dissipation

AVDD = 5V, DVDD = 3V, IOVDD = 3V,

REFEN = high

570

710

mW

Power dissipation

PD = low, CLK disabled

5

mW

Temperature Range

Specified

−40

+85

°C

Operating

−40

+105

°C

Storage

−60

+150

°C

Thermal Resistance,

θJA

PowerPAD

 soldered to PCB with 2oz.

trace and copper pad.

25

°C/W

θJC

PowerPAD

soldered to PCB with 2oz.

trace and copper pad.

0.5

°C/W

(1) The specification limits for VREF, VREFP, VREFN, and VMID apply when using the internal or an external reference. The internal reference

voltages are bounded by the limits shown. When using an external reference, the limits indicate the allowable voltages that can be applied to

the reference pins.