LTC1257C Linear Technology, LTC1257C Datasheet - Page 4

• Manufacturer Part Number: LTC1257C
• Description: Complete Single Supply 12-Bit Voltage Output DAC in SO-8
• Manufacturer: Linear Technology

LTC1257
TYPICAL PERFORMANCE CHARACTERISTICS
4
2.0495
2.0490
2.0485
2.0480
2.0475
2.0470
2.0465
0.59
0.54
0.49
0.44
0.39
0.34
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
–50
0.01
Minimum Supply Voltage
vs Load Current #1
Supply Current vs
Logic Input Voltage
0
Full-Scale Voltage vs
Temperature
V
V
T
V
INTERNAL REFERENCE
A
REF
OUT
–25
CC
= 25°C
= 5V
= INTERNAL
= FULL SCALE
OUTPUT LOAD CURRENT (mA)
1
0
TEMPERATURE (°C)
LOGIC VOLTAGE (V)
0.1
2
25
50
3
1
75
W
V
T
A
CC
4
= 25°C
100
= 5V
1257 G07
1257 G01
1257 G04
U
125
10
5
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0.01
–50
10
Output Swing vs Load Resistance
Minimum Supply Voltage
vs Load Current #2
Zero-Scale Voltage vs
Temperature
V
V
T
V
INTERNAL REFERENCE
A
REF
OUT
CC
–25
= 25°C
= 5V
= 10V
= FULL SCALE
OUTPUT LOAD CURRENT (mA)
LOAD RESISTANCE ( )
0
TEMPERATURE (°C)
100
0.1
FULL SCALE
R
L
25
TIED TO GND
50
R
ZERO SCALE
L
TIED TO V
1k
1
75
V
CC
100
CC
= 5V
1257 G08
1257 G02
1257 G05
10k
125
10
1000
0.38
0.37
0.36
0.35
0.34
0.33
0.32
0.31
–0.4
–0.8
–1.2
–1.6
–2.0
100
0.1
2.0
1.6
1.2
0.8
0.4
10
1
0
–50
Supply Current vs Temperature
Pull-Down Voltage vs Output Sink
Current Capability
Integral Nonlinearity (INL)
1
0
V
INTERNAL REFERENCE
T
CC
A
512
–25
= 25°C
= 5V
OUTPUT SINK CURRENT ( A)
1024
V
V
CC
V
CC
0
CC
TEMPERATURE (°C)
10
= 5.25V
= 4.75V
1536
= 5V
HOT
25
CODE
2048 2560
ROOM
50
COLD
100
75
3072 3584 4096
100
1257 G06
1257 G03
1257 G09
1000
125