LTC1458 Linear Technology, LTC1458 Datasheet - Page 4

• Manufacturer Part Number: LTC1458
• Description: Quad 12-Bit Rail-to-Rail Micropower DACs
• Manufacturer: Linear Technology

LTC1458/LTC1458L
The
temperature range.
Note 1: Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 4095 (full scale).
TYPICAL PERFORMANCE CHARACTERISTICS
4
ELECTRICAL CHARACTERISTICS
1000
–0.1
–0.2
–0.3
–0.4
–0.5
900
800
700
600
500
400
300
200
100
0.1
0.5
0.4
0.3
0.2
0.1
0
0
denotes specifications which apply over the full operating
LTC1458
Differential Nonlinearity (DNL)
0
Minimum Output Voltage vs
Output Sink Current
REFLO = GND
X1/X2 = GND
512
5
OUTPUT SINK CURRENT (mA)
1024
10
1536
125 C
CODE
2048 2560
15
20
3072 3584 4095
25 C
–55 C
W
25
1458 G04
1458 G09
U
30
–0.4
–0.8
–1.2
–1.6
–2.0
2.0
1.6
1.2
0.8
0.4
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
10
Output Swing vs Load Resistance
LTC1458
Integral Nonlinearity (INL)
0
REFLO = GND
X1/X2 = GND
512
1024
LOAD RESISTANCE ( )
100
1536
CODE
2048 2560
Note 2: Load is 5k in parallel with 100pF.
Note 3: DAC switched between all 1s and the code corresponding to V
for the part.
Note 4: Digital inputs at 0V or V
1k
3072 3584 4095
R
L
1458 G05A
1458 G08
10k
1.4
1.2
1.0
0.8
0.6
0.4
0.2
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
CC
0
0
10
0
.
Minimum Supply Headroom for
Full Output Swing vs Load Current
Output Swing vs Load Resistance
REFLO = GND
X1/X2 = GND
CODE: ALL 1's
V
OUT
V
OUT
5
= 4.095V
< 1LSB
LOAD RESISTANCE ( )
LOAD CURRENT (mA)
10
100
15
V
CC
20
1k
REFLO = GND
X1/X2 = GND
R
L
25
1458 G06A
1458 G03
OS
10k
30