LTC2978
TYPICAL PERFORMANCE CHARACTERISTICS
ADC Total Unadjusted Error
vs Temperature
Temperature Sensor Error
Reference Voltage vs Temperature
vs Temperature
1.2355
1.2350
1.2345
1.2340
1.2335
1.2330
1.2325
1.2320
1.2315
1.2310
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.035
0.030
ADC V = 1.8V
IN
0.025
0.020
0.015
0.010
0.005
THREE TYPICAL PARTS
0
–50 –35 –20 –5 10 25
100
–50 –35 –20 –5 10 25 40 55 70 85 100
–50
–5
55
100
70 85
40 55 70 85
–35 –20
10 25 40
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
2978 G01
2978 G02
2978 G03
ADC Zero Code Center Offset
Voltage vs Temperature
ADC-INL
ADC-DNL
0.8
0.6
0
–20
3.0
2.5
2.0
1.5
1.0
0.5
0
VOLTAGE SENSE MODE
122µV/LSB
122µV/LSB
0.4
–40
0.2
–60
0
–80
–0.2
–0.4
–0.6
–0.8
–1.0
–100
–120
–140
–160
–180
–0.5
–1.0
–1.5
–0.2 0.8
1.8
2.8
3.8
4.8
–50 –35 –20 –5 10 25
100
–0.2 0.8
1.8
2.8
3.8
4.8
5.8
40 55 70 85
5.8
INPUT VOLTAGE (V)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
2978 G06
2978 G04
2978 G05
ADC Rejection
vs Frequency at VIN
ADC Rejection
vs Frequency at VIN (Zoom)
ADC Rejection vs Frequency
at VIN (Current Sense Mode)
0
0
0
–20
–20
–20
–40
–60
–40
–60
–40
–60
–80
–100
–120
–80
–100
–120
–80
–100
–120
0
12500 25000 37500 50000 62500
FREQUENCY (Hz)
0
3125
6250
FREQUENCY (Hz)
9375
12500
0
12500 25000 37500 50000 62500
FREQUENCY (Hz)
2978 G07
2978 G08
2978 G09
2978fc
10
Linear Systems [ Linear Systems ]
