Datasheet

2.475
2.480
2.485
2.490
2.495
2.500
2.505
2.510
2.515
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
ADC12 Reference
G003b
ADC12 2.5-V Reference
1.92
1.96
2
2.04
2.08
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
2-MHZ Reference
G004b
UCD3138 Oscillator Frequency
−4
−2
0
2
4
6
8
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
ADC12 Error (LSB)
G002b
ADC12 Temperature Sensor Measurement Error
1.4
1.6
1.8
2.0
2.2
2.4
2.6
−60 −40 −20 0 20 40 60 80 100 120 140 160
Temperature (°C)
Sensor Voltage (V)
G006b
ADC12 Measurement Temperature Sensor Voltage
1.71
1.73
1.75
1.77
1.79
1.81
-50 0 50 100 150
Voltage (V)
Temperature (C)
Minimum
Maximum
Typical
C001
1.6
1.7
1.8
1.9
2
2.1
−40 −20 0 20 40 60 80 100 120
Temperature (°C)
EADC LSB Size (mV)
G005a
UCD3138
SLUSAP2F –MARCH 2012 –REVISED NOVEMBER 2013 www.ti.com
3.8 Typical Temperature Characteristics
sp
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
Temperature
22 Electrical Specifications Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: UCD3138