LTC1458LCSW 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LTC1458LCSW Datasheet PDF : 12 Pages
| |||
LTC1458/LTC1458L
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 4095 (full scale).
Note 3: Load is 5kΩ in parallel with 100pF.
Note 4: DAC switched between all 1s and the code corresponding to VOS
for the part.
Note 5: Digital inputs at 0V or VCC.
TYPICAL PERFOR A CE CHARACTERISTICS
LTC1458
Differential Nonlinearity (DNL)
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0 512 1024 1536 2048 2560 3072 3584 4095
CODE
1458 G09
Minimum Output Voltage vs
Output Sink Current
1000
REFLO = GND
900 X1/X2 = GND
800
25°C
700
125°C
600
–55°C
500
400
300
200
100
0.1
0
5 10 15 20 25 30
OUTPUT SINK CURRENT (mA)
1458 G04
LTC1458
Integral Nonlinearity (INL)
2.0
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
–2.0
0 512 1024 1536 2048 2560 3072 3584 4095
CODE
1458 G08
Output Swing vs Load Resistance
4.5
4.0
3.5
3.0
2.5
RL
2.0
1.5
1.0
0.5
0
10
REFLO = GND
X1/X2 = GND
DAC CODE = FFFH
100
1k
LOAD RESISTANCE (Ω)
10k
1458 G05A
Minimum Supply Headroom for
Full Output Swing vs Load Current
1.4
∆VOUT < 1LSB
1.2
REFLO = GND
X1/X2 = GND
CODE: ALL 1's
1.0 VOUT = 4.095V
0.8
0.6
0.4
0.2
0
0 5 10 15 20 25 30
LOAD CURRENT (mA)
1458 G03
Output Swing vs Load Resistance
4.5
REFLO = GND
4.0
X1/X2 = GND
DAC CODE = OOOH
3.5
3.0
VCC
2.5
RL
2.0
1.5
1.0
0.5
0
10
100
1k
10k
LOAD RESISTANCE (Ω)
1458 G06A
4
Share Link: 