ltc1867l Linear Technology Corporation, ltc1867l Datasheet - Page 5

• Manufacturer Part Number: ltc1867l
• Description: Ltc1863l - Micropower, 3v, 12-bit, 8-channel 175ksps Adcs
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
–100
–120
–140
–100
–0.5
–1.0
–1.5
–2.0
–90
–80
–70
–60
–50
–40
–30
–20
–60
–20
–40
–80
2.0
1.5
1.0
0.5
0
0
0
0
1
4096 Points FFT Plot
(V
Total Harmonic Distortion
vs Input Frequency
Integral Nonlinearity
vs Output Code
V
INTERNAL REF
f
V
f
SAMPLE
SAMPLE
DD
DD
DD
= 3V
= 2.7V
= 3V, REFCOMP = Ext 3V)
21.875
16384
= 175ksps
= 175ksps
INPUT FREQUENCY (kHz)
FREQUENCY (kHz)
OUTPUT CODE
32768
43.75
10
THD
f
f
SNR = 84.7dB
SINAD = 83.5dB
THD = 90dB
SAMPLE
IN
SFDR
= 1kHz
65.625
49152
W
= 175ksps
1863L7L G01
1863L7L G04
1863L7L G06
65536
U
87.5
100
–100
–100
–110
–120
–130
–140
–0.5
–1.0
–1.5
–2.0
–20
–30
–40
–50
–60
–70
–80
–90
–60
–70
–80
–90
2.0
1.5
1.0
0.5
0
0.1
0
1
Power Supply Feedthrough
vs Ripple Frequency
Crosstalk vs Input Frequency
Differential Nonlinearity
vs Output Code
V
f
V
V
f
V
f
SAMPLE
SAMPLE
ACTIVE CHANNEL INPUT FREQUENCY (kHz)
SAMPLE
DD
RIPPLE
DD
DD
= 3V
= 2.7V
= 3V
16384
= 10mV
= 175ksps
= 175ksps
= 175ksps
RIPPLE FREQUENCY (kHz)
1
10
OUTPUT CODE
ADJACENT PAIR
P-P
32768
10
100
NONADJACENT
PAIR
49152
100
1863L7L G08
1863L7L G02
1863L7L G05
(LTC1867L)
65536
1000
1000
LTC1863L/LTC1867L
–100
–120
–140
100
800
700
600
500
400
300
200
100
–20
–60
–40
–80
90
60
50
20
80
70
40
30
0
1
0
Signal-to-(Noise + Distortion)
Ratio vs Input Frequency
1
Supply Current vs f
(LTC1863L/LTC1867L)
4096 Points FFT Plot
(V
V
INTERNAL REF
f
V
SAMPLE
DD
DD
DD
= 3V
= 2.7V
= 2.7V, Internal REF)
21.875
= 175ksps
INPUT FREQUENCY (kHz)
10
FREQUENCY (kHz)
f
SAMPLE
SINAD
43.75
10
SNR
(ksps)
SAMPLE
f
f
SNR = 82.9dB
SINAD = 81.4dB
THD = 86.8dB
SAMPLE
IN
100
= 1kHz
65.625
= 175ksps
1863L7L G09
1863L7L G03
1863L7L G06
1863l7lfa
5
1000
87.5
100