LTC1867LACGN Просмотр технического описания (PDF) - Linear Technology
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LTC1867LACGN Datasheet PDF : 16 Pages
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LTC1863L/LTC1867L
TYPICAL PERFORMANCE CHARACTERISTICS
(LTC1867L)
Total Harmonic Distortion
vs Input Frequency
Power Supply Feedthrough
vs Ripple Frequency
–100
–90
–80
–70
–60
SFDR
THD
–20
VDD = 3V
–30 fSAMPLE = 175ksps
VRIPPLE = 10mVP-P
–40
–50
–60
–50
–70
–40
VDD = 3V
–30 INTERNAL REF
fSAMPLE = 175ksps
–20
1
10
100
INPUT FREQUENCY (kHz)
(LTC1863L/ LTC1867L)
1863L7L G07
–80
–90
–100
1
10
100
1000
RIPPLE FREQUENCY (kHz)
1863L7L G08
Supply Current vs Supply Voltage
1200
fSAMPLE = 175ksps
1100
1000
Supply Current vs Temperature
1500 fSAMPLE = 175ksps
INTERNAL REF
1250
3.6VDD
3.3VDD
900
1000
3VDD
800
2.7VDD
750
700
600
2.7
3
3.3
SUPPLY VOLTAGE (V)
3.6
1963L7L G10
REFCOMP vs Load Current
2.510
VDD = 2.7V
2.505
2.500
2.495
2.490
2.485
2.480
2.475
0
0.5
1
1.5
2
LOAD CURRENT (mA)
1863L7L G13
500
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
1863L7L G11
Offset Drift (LTC1867L)
vs Temperature
10
VDD = 2.7V
fSAMPLE = 175ksps
EXT VREF = 1.25V
5
BIPOLAR
MODE
0
UNIPOLAR
MODE
–5
–10
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1863L7L G14
6
For more information www.linear.com/LTC1863L
Supply Current vs fSAMPLE
(LTC1863L/LTC1867L)
800
VDD = 2.7V
700
600
500
400
300
200
100
1
10
100
fSAMPLE (ksps)
1000
1863L7L G09
Histogram for 4096 Conversions
(LTC1867L)
1200
1000
800
1044
895
830
VDD = 2.7V
INTERNAL REF
600
465
400
200
170
333
261
58
7
0
23 9 1
20 21 22 23 24 25 26 27 28 29 30 31
CODE
1863L7L G12
Gain Error Drift (LTC1867L)
vs Temperature
15
VDD = 2.7V
fSAMPLE = 175ksps
10
EXT VREF = 1.25V
UNIPOLAR/BIPOLAR
5
0
–5
–10
–15
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
1863L7L G15
1863l7lfd
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