LTC2641/LTC2642
TYPICAL PERFORMANCE CHARACTERISTICS
Bipolar Gain Error vs Temperature
5
4
3
2
BGE (LSB)
ZSE (LSB)
1
0
–1
–2
–3
–4
–5
–40
–15
35
10
TEMPERATURE (°C)
60
85
26412 G10
Unbuffered Zero Scale Error vs
Temperature (LTC2641-16)
1.0
0.8
0.6
0.4
FSE (LSB)
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–40
–15
35
10
TEMPERATURE (°C)
60
85
26412 G11
Unbuffered Full-Scale Error vs
Temperature (LTC2641-16)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–40
–15
35
10
TEMPERATURE (°C)
60
85
26412 G12
V
REF
= 2.5V
V
DD
= 5V
14-Bit Integral Nonlinearity (INL)
(LTC2642-14)
1.0
0.8
0.6
0.4
DNL (LSB)
INL (LSB)
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192
CODE
12288
16383
26412 G13
14-Bit Differential Nonlinearity
(DNL) (LTC2642-14)
1.0
250
LTC2642-14
V
REF
= 2.5V
V
DD
= 5V
0.8
0.6
0.4
I
REF
(μA)
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192
CODE
12288
16383
26412 G14
I
REF
vs Code (Unipolar LTC2641)
V
REF
= 2.5V
LTC2642-14
V
REF
= 2.5V
V
DD
= 5V
200
150
100
50
0
0
16384
32768
CODE
49152
65535
26412 G15
12-Bit Integral Nonlinearity (INL)
(LTC2642-12)
1.0
0.8
0.6
0.4
DNL (LSB)
INL (LSB)
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1024
2048
CODE
3072
4095
26412 G16
12-Bit Differential Nonlinearity
(DNL) (LTC2642-12)
1.0
250
LTC2642-12
V
REF
= 2.5V
V
DD
= 5V
0.8
0.6
0.4
I
REF
(μA)
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1024
2048
CODE
3072
4095
26412 G17
I
REF
vs Code (Bipolar LTC2642)
VREF = 2.5V
LTC2642-12
V
REF
= 2.5V
V
DD
= 5V
200
150
100
50
0
0
16384
32768
CODE
49152
65535
26412 G18
26412f
7
LINER [ LINEAR TECHNOLOGY ]
