at TA = 25°C, VAVDD = 5 V, VAVSS = 0 V, VDVDD = 3.3 V, VREF = 2.5 V, and fCLK = 7.3728 MHz (unless otherwise noted); typical ADC1 characteristics at data rate = 20 SPS and gain = 1; typical ADC2 characteristics at data rate = 10 SPS and gain = 1
| After offset calibration, shorted inputs |
Figure 7-4 ADC1
Offset Voltage vs Temperature
Figure 7-6 ADC1
Offset Voltage vs Temperature Distribution
Figure 7-8 ADC1
Offset Voltage vs Reference Voltage
Figure 7-10 ADC1
Gain vs Temperature Distribution
Figure 7-12 ADC1
Noise vs Temperature
| 20
SPS, 400 SPS, 7200 SPS = sinc4, 38400 SPS =
sinc5 |
| |
Figure 7-14 ADC1
Noise vs Reference Voltage
20
SPS, FIR filter, gain = 32, after offset calibration,
256 samples |
Figure 7-16 ADC1
Output Reading Distribution
7200
SPS, sinc4 filter, gain = 32, after offset
calibration,
8192
samples |
Figure 7-18 ADC1
Output Reading Distribution
Figure 7-20 ADC1
Output Spectrum
Figure 7-22 ADC1
INL vs Temperature
Figure 7-24 ADC1
INL vs Reference Voltage
Figure 7-26 ADC1
Absolute Input Current
Figure 7-28 ADC1
Absolute Input Current
Figure 7-30 ADC1
Differential Input Current
Figure 7-32 Voltage Reference Long-Term Drift
| IREFP measured with VREFN =
VAVSS, IREFN measured with
VREFP = VAVDD |
Figure 7-34 ADC1
Reference Input Current
Figure 7-36 ADC1 PSRR vs Frequency
Figure 7-38 IDAC Error vs Compliance Voltage
Figure 7-40 IDAC Error vs Compliance Voltage
Figure 7-42 Temperature Sensor Voltage vs Temperature
Figure 7-44 Internal Oscillator Frequency vs Temperature
Figure 7-46 ADC1
Differential Over-range Alarm Threshold vs Temperature
Figure 7-48 ADC1
Absolute High Alarm Threshold vs Temperature
| After offset calibration, shorted input |
Figure 7-50 ADC2
Offset Voltage vs Temperature
Figure 7-52 ADC2
Gain vs Temperature
| Gain = 1, 10 SPS, after offset calibration, 128
samples |
Figure 7-54 ADC2
Output Reading Distribution
Figure 7-56 ADC2
INL vs VIN
Figure 7-58 ADC2
Noise vs Temperature
Figure 7-60 ADC2 Absolute Input Current
Figure 7-62 ADC2 Differential Input Current
Figure 7-64 ADC2 CMRR vs Frequency
| Chop
mode on, after offset calibration, shorted
inputs |
Figure 7-5 ADC1
Offset Voltage vs Temperature
| Chop
mode on, shorted inputs, 30 units |
Figure 7-7 ADC1
Offset Voltage vs Temperature Distribution
Figure 7-9 ADC1
Gain Error vs Temperature
Figure 7-11 ADC1
Gain Error vs Reference Voltage
Figure 7-13 ADC1
Noise vs Temperature
20
SPS, FIR filter, gain = 1, after offset calibration,
256 samples |
Figure 7-15 ADC1
Output Reading Distribution
7200
SPS, sinc4 filter, gain = 1, after offset
calibration,
8192
samples |
Figure 7-17 ADC1
Output Reading Distribution
| 20
SPS, gain = 1, 256 points |
| |
Figure 7-19 ADC1
Output Spectrum
Figure 7-21 ADC1
INL vs VIN
Figure 7-23 ADC1
INL Distribution
Figure 7-25 ADC1
Differential Input Current
Figure 7-27 ADC1
Absolute Input Current
Figure 7-29 ADC1
Differential Input Current
Figure 7-31 Voltage Reference vs Temperature
Figure 7-33 Voltage Reference Start-Up Time
Figure 7-35 ADC1
CMRR vs Frequency
Figure 7-37 ADC1 CMRR, PSRR vs Temperature
Figure 7-39 IDAC Error vs Compliance Voltage
Figure 7-41 IDAC Current Error vs Compliance Voltage
Figure 7-43 Temperature Sensor Voltage Distribution
Figure 7-45 ADS1262 Active Current vs Temperature
Figure 7-47 ADC1
Absolute Low Alarm Threshold vs Temperature
Figure 7-49 TDAC
Error vs Temperature
Figure 7-51 ADC2
Offset Voltage vs Temperature Distribution
Figure 7-53 ADC2
Gain vs Temperature Distribution
| Gain
= 128, 10 SPS, after offset calibration, 128
samples |
Figure 7-55 ADC2
Output Reading Distribution
Figure 7-57 ADC2
INL vs Temperature
Figure 7-59 ADC2 Noise vs Reference Voltage
Figure 7-61 ADC2 Absolute Input Current
Figure 7-63 ADC2 Differential Input Current
| IREFP measured with VREFN = VAVSS, IREFN measured with VREFP = VAVDD |