ltc2435-1 Linear Technology Corporation, ltc2435-1 Datasheet - Page 34

• Manufacturer Part Number: ltc2435-1
• Description: 20-bit No Latency Delta Sigma Adcs With Differential Input And Differential Reference
• Manufacturer: Linear Technology Corporation

APPLICATIO S I FOR ATIO
LTC2435/LTC2435-1
34
Figure 38. Input Normal Mode Rejection
vs Input Frequency (LTC2435-1)
–100
–120
–40
–60
–20
–80
0
0
25
U
50
MEASURED DATA
CALCULATED DATA
INPUT FREQUENCY (Hz)
75
U
100 125
150 175 200
W
V
V
REF
V
V
F
T
O
CC
REF
INCM
IN(P-P)
A
= GND
= 25°C
–
= 5V
= 5V
= GND
= 2.5V
Figure 40. Measured Input Normal Mode
Rejection vs Input Frequency (f
= 5V
2435 F38
–100
–120
–40
–60
–80
–20
225
0
0
U
25
(150% OF FULL SCALE)
50
V
V
INPUT FREQUENCY (Hz)
IN(P-P)
IN(P-P)
75
100 125
= 5V
= 7.5V
150 175 200
V
V
REF
V
F
T
O
CC
REF
INCM
A
N
= GND
= 25°C
–
= 54.6Hz)
= 5V
= 5V
= GND
Figure 39. Input Normal Mode Rejection
vs Input Frequency with Running Average
= 2.5V
2435 F40
–100
–120
–40
–60
–80
–20
0
225
0
25
50
MEASURED DATA
CALCULATED DATA
INPUT FREQUENCY (Hz)
75
100 125
150 175 200
V
V
REF
V
V
F
T
O
CC
REF
INCM
IN(P-P)
A
= GND
= 25°C
–
= 5V
= 5V
= GND
= 2.5V
= 5V
2435 F39
225
24351fb