TSC2046

SBAS265G − OCTOBER 2002 − REVISED JANUARY 2008

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8

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C, +VCC = +2.7V, IOVDD = +1.8V, VREF = External +2.5V, 12-bit mode, PD0 = 0, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz,

unless otherwise noted.

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

20

40

60

80

100

120

140

160

180

200

Sampling Rate (kHz)

MAXIMUM SAMPLING RATE vs R

IN

INL: R

IN = 500Ω

INL: R

IN =2kΩ

DNL: R

IN = 500Ω

DNL: R

IN =2kΩ

INTERNAL V

REF vs TEMPERATURE

2.5080

2.5075

2.5070

2.5065

2.5060

3.5055

2.5050

2.5045

2.5040

2.5035

2.5030

Temperature (

°C)

INTERNAL V

REF vs +VCC

2.53.0

3.5

4.0

4.55.0

+V

CC (V)

2.510

2.505

2.500

2.495

2.490

2.485

2.480

INTERNAL VREF vs TURN− ON TIME

0

200

400

600

800

1000

1200

1400

100

80

60

40

20

0

Turn-On Time (

µs)

1

µF Cap

(124

µs)

12-Bit Settling

No Cap

(42

µs)

12-Bit Settling

TEMP DIODE VOLTAGE vs TEMPERATURE

850

800

750

700

650

600

550

500

450

90.1mV

135.1mV

TEMP1

TEMP0

Temperature (

°C)

TEMP0 DIODE VOLTAGE vs +V

CC

2.7

3.0

3.3

+V

CC (V)

604

602

600

598

596

594