LTC1863L/LTC1867L
6
1863l7lfc
TYPICAL PERFORMANCE CHARACTERISTICS
(LTC1867L)
(LTC1863L/ LTC1867L)
fSAMPLE (ksps)
1
500
SUPPLY
CURRENT
(μA)
600
700
800
10
100
1000
1863L7L G09
400
300
200
100
VDD = 2.7V
INPUT FREQUENCY (kHz)
1
–20
AMPLITUDE
(dB)
–40
–60
–100
10
100
1863L7L G07
–80
–30
–50
–90
–70
VDD = 3V
INTERNAL REF
fSAMPLE = 175ksps
THD
SFDR
RIPPLE FREQUENCY (kHz)
1
–60
POWER
SUPPLY
FEEDTHROUGH
(dB)
–40
–20
10
100
1000
1863L7L G08
–80
–70
–50
–30
–90
–100
VDD = 3V
fSAMPLE = 175ksps
VRIPPLE = 10mVP-P
Power Supply Feedthrough
vs Ripple Frequency
Supply Current vs fSAMPLE
(LTC1863L/LTC1867L)
Total Harmonic Distortion
vs Input Frequency
Supply Current vs Supply Voltage
Supply Current vs Temperature
Histogram for 4096 Conversions
(LTC1867L)
SUPPLY VOLTAGE (V)
2.7
600
SUPPLY
CURRENT
(μA)
700
800
900
1000
1200
3
3.3
1963L7L G10
3.6
1100
fSAMPLE = 175ksps
TEMPERATURE (°C)
–50
500
SUPPLY
CURRENT
(μA)
750
1000
1250
1500
–25
0
25
50
1863L7L G11
75
100
3.6VDD
3.3VDD
2.7VDD
3VDD
fSAMPLE = 175ksps
INTERNAL REF
CODE
20
7
0
COUNTS
200
400
600
800
1200
22
24
26
28
1863L7L G12
30
21
23
25
27
29
31
1000
58
465
1044
895
261
23 9 1
170
333
VDD = 2.7V
INTERNAL REF
LOAD CURRENT (mA)
0
2.495
2.500
2.510
1.5
1863L7L G13
2.490
2.485
0.5
1
2
2.480
2.475
2.505
REFCOMP
(V)
VDD = 2.7V
TEMPERATURE (°C)
–50
–10
UNIPOLAR
OFFSET
(LSB)
–5
0
5
10
–25
0
25
50
1863L7L G14
75
100
BIPOLAR
MODE
UNIPOLAR
MODE
VDD = 2.7V
fSAMPLE = 175ksps
EXT VREF = 1.25V
TEMPERATURE (°C)
–50
–15
UNIPOLAR
OFFSET
(LSB)
–10
–5
0
5
15
–25
025
50
1863L7L G15
75
100
10
VDD = 2.7V
fSAMPLE = 175ksps
EXT VREF = 1.25V
UNIPOLAR/BIPOLAR
REFCOMP vs Load Current
Offset Drift (LTC1867L)
vs Temperature
Gain Error Drift (LTC1867L)
vs Temperature