LTC1863L/LTC1867L
TYPICAL PERFORMANCE CHARACTERISTICS
(LTC1867L)
Total Harmonic Distortion
vs Input Frequency
–100
–90
–80
AMPLITUDE (dB)
POWER SUPPLY FEEDTHROUGH (dB)
Power Supply Feedthrough
vs Ripple Frequency
V
DD
= 3V
–30 f
SAMPLE
= 175ksps
V
RIPPLE
= 10mV
P-P
SUPPLY CURRENT (μA)
Supply Current vs f
SAMPLE
(LTC1863L/LTC1867L)
800
700
600
500
400
300
200
100
V
DD
= 2.7V
–20
–40
–50
–60
–70
–80
–90
–100
1
10
100
RIPPLE FREQUENCY (kHz)
1000
1863L7L G08
SFDR
–70
THD
–60
–50
–40
V
DD
= 3V
–30 INTERNAL REF
f
SAMPLE
= 175ksps
–20
10
1
INPUT FREQUENCY (kHz)
100
1863L7L G07
1
10
100
f
SAMPLE
(ksps)
1000
1863L7L G09
(LTC1863L/ LTC1867L)
Supply Current vs Supply Voltage
1200
1100
SUPPLY CURRENT (μA)
Supply Current vs Temperature
1500
f
SAMPLE
= 175ksps
INTERNAL REF
1200
1000
Histogram for 4096 Conversions
(LTC1867L)
1044
895
830
800
V
DD
= 2.7V
INTERNAL REF
f
SAMPLE
= 175ksps
SUPPLY CURRENT (μA)
1250
1000
900
800
700
600
3.6V
DD
3.3V
DD
3V
DD
1000
COUNTS
600
465
400
200
170
7
58
23 9
1
333
261
750
2.7V
DD
2.7
3
3.3
SUPPLY VOLTAGE (V)
3.6
1963L7L G10
500
–50
0
–25
0
25
50
TEMPERATURE (°C)
75
100
20 21 22 23 24 25 26 27 28 29 30 31
CODE
1863L7L G12
1863L7L G11
REFCOMP vs Load Current
2.510
2.505
UNIPOLAR OFFSET (LSB)
Offset Drift (LTC1867L)
vs Temperature
10
V
DD
= 2.7V
f
SAMPLE
= 175ksps
EXT V
REF
= 1.25V
BIPOLAR
MODE
0
15
Gain Error Drift (LTC1867L)
vs Temperature
UNIPOLAR
MODE
UNIPOLAR OFFSET (LSB)
V
DD
= 2.7V
10
5
0
–5
–10
2.500
REFCOMP (V)
5
V
DD
= 2.7V
f
SAMPLE
= 175ksps
EXT V
REF
= 1.25V
UNIPOLAR/BIPOLAR
2.495
2.490
2.485
2.480
2.475
0
0.5
1.5
LOAD CURRENT (mA)
1
2
1863L7L G13
–5
–10
–50
–25
0
25
50
TEMPERATURE (°C)
75
100
–15
–50
–25
0
25
50
TEMPERATURE (°C)
75
100
1863L7L G14
1863L7L G15
1863l7lfc
6
LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
