Datasheet

LTC2974
11
2974fc
For more information www.linear.com/LTC2974
Voltage Supervisor Total
Unadjusted Error vs Temperature
Current Supervisor Total
Unadjusted Error vs Temperature
DAC Full-Scale Voltage
vs Temperature, Gain = 0
Typical perForMance characTerisTics
DAC-INL DAC-DNL
V
DD33
Regulator Output Voltage
vs Temperature
DAC Full-Scale Voltage
vs Temperature, Gain = 1
DAC Offset Voltage
vs Temperature, Gain = 0
DAC Offset Voltage
vs Temperature, Gain = 1
TEMPERATURE (°C)
–50
SUPERVISOR ERROR (%)
50 75
0.25
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
2974 G10
–25 0 25
100
THREE TYPICAL PARTS
HIGH RES MODE
V
IN
= 1.5V
TEMPERATURE (°C)
–50
DAC OUTPUT VOLTAGE (V)
50 75
1.405
1.400
1.395
1.390
1.385
1.380
1.375
1.370
1.365
1.360
2974 G12
–25 0 25
100
THREE TYPICAL PARTS
GAIN SETTING = 0
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
50 75
3.285
3.280
3.275
3.270
3.265
3.260
3.255
3.250
3.245
3.240
2974 G18
–25 0 25
100
THREE TYPICAL PARTS
TEMPERATURE (°C)
–50
DAC OUTPUT VOLTAGE (V)
50 75
2.70
2.69
2.68
2.67
2.66
2.65
2.64
2.63
2.62
2974 G13
–25 0 25
100
THREE TYPICAL PARTS
GAIN SETTING = 1
DAC CODE
0
ERROR (LSBs)
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
768
2974 G16
256 512
1024
DAC CODE
0
ERROR (LSBs)
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
768
2974 G17
256 512
1024
TEMPERATURE (°C)
–50
DAC OUTPUT VOLTAGE (V)
50 75
0.0025
0.0020
0.0015
0.0010
0.0005
0
2974 G14
–25 0 25
100
THREE TYPICAL PARTS
GAIN SETTING = 0
TEMPERATURE (°C)
–50
DAC OUTPUT VOLTAGE (V)
50 75
0.0040
0.0030
0.0025
0.0035
0.0020
0.0015
0.0010
0.0005
0
2974 G15
–25 0 25
100
THREE TYPICAL PARTS
GAIN SETTING = 1
TEMPERATURE (°C)
–50
SUPERVISOR ERROR (%)
50 75
2974 G11
–25 0 25
100
50mV
20mV
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0