Datasheet

5
LTC1860L/LTC1861L
18601Lf
Reference Current vs
Sampling Rate
Reference Current vs
Temperature
Reference Current vs
Reference Voltage
Typical INL Curve
Typical DNL Curve
Analog Input Leakage vs
Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Change in Offset vs
Reference Voltage
Change in Offset vs Temperature
Change in Gain Error vs
Reference Voltage
TEMPERATURE (°C)
–50
REFERENCE CURRENT (µA)
25
20
15
10
5
0
25 75
1860L/61L G05
–25 0
50 100 125
f
S
= 150kHz
V
CC
= 2.7V
V
REF
= 2.5V
TEMPERATURE (°C)
–50
ANALOG INPUT LEAKAGE (nA)
100
75
50
25
0
25 75
1860L/61L G09
–25 0
50 100 125
CONV = 0V
V
CC
= 2.7V
V
REF
= 2.5V
SAMPLING FREQUENCY (kHz)
0
REFERENCE CURRENT (µA)
25
50
75 100
1860L/61L G04
125
10
9
8
7
6
5
4
3
2
1
0
150
CONV LOW = 1.5µs
T
A
= 25°C
V
CC
= 2.7V
V
REF
= 2.5V
CODE
0
INL ERROR (LSBs)
4096
1860L/61L G07
1024
2048
3072
1.0
0.5
0
–0.5
–1.0
512 1536 2560
3584
f
S
= 150kHz
T
A
= 25°C
V
CC
= 2.7V
V
REF
= 2.5V
CODE
0
DNL ERROR (LSBs)
4096
1860L/61L G08
1024
2048
3072
1.0
0.5
0
–0.5
–1.0
512 1536 2560
3584
f
S
= 150kHz
T
A
= 25°C
V
CC
= 2.7V
V
REF
= 2.5V
REFERENCE VOLTAGE (V)
0
CHANGE IN OFFSET (LSB)
4
1860L/61L G10
1
2
3
2
1
0
–1
–2
f
S
= 150kHz
T
A
= 25°C
V
CC
= 3.6V
REFERENCE VOLTAGE (V)
0
GHANGE IN GAIN ERROR (LSB)
4
1860L/61L G12
1
2
3
2
1
0
–1
–2
f
S
= 150kHz
T
A
= 25°C
V
CC
= 3.6V
TEMPERATURE (°C)
–50 25 75
1860L/61L G11
–25 0
50 100 125
CHANGE IN OFFSET (LSB)
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
f
S
= 150kHz
V
CC
= 2.7V
V
REF
= 2.5V
REFERENCE VOLTAGE (V)
0
REFERENCE CURRENT (µA)
0.5
1.0
2.01.5 3.02.5
1860L/61L G06
3.5
25
20
15
10
5
0
4.0
f
S
= 150kHz
T
A
= 25°C
V
CC
= 3.6V