UCD3138RHAT datasheet(22/78 Pages) TI1

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2.475

2.480

2.485

2.490

2.495

2.500

2.505

2.510

2.515

−40

−20

100

120

Temperature (°C)

G003b

ADC12 2.5-V Reference

1.92

1.96

2.04

2.08

−40

−20

100

120

Temperature (°C)

G004b

UCD3138 Oscillator Frequency

−4

−2

−40

−20

100

120

Temperature (°C)

G002b

ADC12 Temperature Sensor Measurement Error

1.4

1.6

1.8

2.0

2.2

2.4

2.6

−60 −40 −20

100 120 140 160

Temperature (°C)

G006b

ADC12 Measurement Temperature Sensor Voltage

1.71

1.73

1.75

1.77

1.79

1.81

-50

100

150

Temperature (

SC)

Minimum

Maximum

Typical

C001

1.6

1.7

1.8

1.9

2.1

−40

−20

100

120

Temperature (°C)

G005a

UCD3138

SLUSAP2F – MARCH 2012 – REVISED NOVEMBER 2013

www.ti.com

3.8

Typical Temperature Characteristics

Figure 3-4. EADC LSB Size with 4X Gain (mV) vs.

Figure 3-5. BP18 Voltage vs Temperature

Temperature

Figure 3-6. ADC12 Measurement Temperature

Figure 3-8. ADC12 Temperature Sensor

Sensor Voltage vs. Temperature

Measurement Error vs. Temperature

Figure 3-9. UCD3138 Oscillator Frequency (2MHz

Figure 3-7. ADC12 2.5-V Reference vs.

Reference, Divided Down from 250MHz) vs.

Temperature

Electrical Specifications

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