REV. B
AD1555/AD1556
–13–
Typical Performance Characteristics–
0
FREQUENCY – Hz
0
50 100 150 200 250 300 350 400 450 500
–120
–200
AMPLITUDE – dBr
–20
–100
–140
–180
–60
–80
–160
–40
f
IN
= 24.4Hz
SNR = 116.7dB
THD = –120dB
TPC 1. FFT (2048 Points) Full-Scale MODIN Input
0
–120
AMPLITUDE – dBr
–20
–100
–140
–180
–60
–80
–160
–40
FREQUENCY – Hz
50 100 150 200 250 300 350 400 450 500
–200
0
f
IN
= 24.4Hz
SNR = 105.8dB
THD = –114.9dB
TPC 2. FFT (2048 Points) Full-Scale AIN Input, Gain of 34
0
FREQUENCY – Hz
–120
–200
0
500
AMPLITUDE – dBr
1000
–20
–100
–140
–180
–60
–80
–160
–40
3500 40001500 2000 2500 3000
f
IN
= 24.4Hz
SNR = 68.2dB
THD = –120dB
TPC 3. FFT (16384 Points) Full-Scale AIN Input, Gain of 1
130
TEMPERATURE – C
100
80
–55
–35
DYNAMIC RANGE – dB
–15
110
90
120
85 1055254565 125
G = 1
G = 2.5
G = 8.5
G = 34
G = 128
TPC 4. Dynamic Range vs. Temperature
DYNAMIC RANGE – dB
0
–122
NUMBER OF UNITS
–117
10
5
15
20
25
30
35
–121 –119
–118
–116
TPC 5. Dynamic Range Distribution (272 Units)
TEMPERATURE –
C
90
–55
CMRR – dB
110
100
120
130
140
150
–35 5 45 125–15 25 65 85 105
G = 34
G = 2.5
G = 8.5
G = 1
G = 128
TPC 6. Common-Mode Rejection vs. Temperature
REV. B
AD1555/AD1556
–14–
CMRR – dB
0
–128
NUMBER OF UNITS
–98
4
2
10
12
14
16
20
–120 –113 –105 –90
6
8
18
TPC 7. Common-Mode Rejection Distribution (272 Units)
FREQUENCY – Hz
90
0
CMRR – dB
100
95
105
110
115
120
100 200 300 1000500 800 900400 600 700
G = 8.5
G = 34
G = 2.5
G = 1
G = 128
TPC 8. Common-Mode Rejection vs. Frequency
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
12525 50 75 100
–0.15
–0.10
–0.05
0.15
0.20
TPC 9. AD1556 Pass Band Ripple, F
O
= 250 Hz (4 ms)
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
25050 100 150 200
–0.15
–0.10
–0.05
0.15
0.20
TPC 10. AD1556 Pass Band Ripple, F
O
= 500 Hz (2 ms)
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
500100 200 300 400
–0.15
–0.10
–0.05
0.15
0.20
TPC 11. AD1556 Pass Band Ripple, F
O
= 1 kHz (1 ms)
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
1000200 400 600 800
–0.15
–0.10
–0.05
0.15
0.20
TPC 12. AD1556 Pass Band Ripple, F
O
= 2 kHz (1/2 ms)
REV. B
AD1555/AD1556
–15–
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
500 1000 1500 2000
–0.15
–0.10
–0.05
0.15
0.20
TPC 13. AD1556 Pass Band Ripple, F
O
= 4 kHz (1/4 ms)
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
1000 2000 3000 4000
–0.15
–0.10
–0.05
0.15
0.20
TPC 14. AD1556 Pass Band Ripple, F
O
= 8 kHz (1/8 ms)
FREQUENCY – Hz
–0.20
0
AMPLITUDE – dB
0.00
0.05
0.10
2000
4000 6000 8000
–0.15
–0.10
–0.05
0.15
0.20
TPC 15. AD1556 Pass Band Ripple, F
O
= 16 kHz (1/16 ms)

AD1555BPZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Analog to Digital Converters - ADC IC 256 ksps w/PGA
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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