AD8400/AD8402/AD8403 - SP-Elektroniikka

NORMALIZED GAIN FLATNESS – 0.1dB/DIV
SEE TEST CIRCUIT 7
CODE = 80 H
V DD = 5V
T A = 25C
R = 50k
R = 100k
R = 10k
10 100 1k 10k 100k 1M
FREQUENCY – Hz
TPC 19. Normalized Gain Flatness vs.
Frequency
IDD – SUPPLY CURRENT – mA
10
1
0.1
T A = 25C
V DD = 3V
V DD = 5V
0.01 0 1 2 3 4 5
DIGITAL INPUT VOLTAGE – V
TPC 20. Supply Current vs.
Digital Input Voltage
AD8400/AD8402/AD8403
PSRR – dB
80
60
40
20
V DD = +5V DC 1V p-p AC
T A = 25C
CODE = 80 H
C L = 10pF
V A = 4V, V B = 0V
SEE TEST CIRCUIT 4
0
100 1k 10k 100k 1M
FREQUENCY – Hz
TPC 21. Power Supply Rejection
vs. Frequency
GAIN – dB
12
6
0
–6
–12
–18
–24
f –3dB = 71kHz, R = 100k
f –3dB = 700kHz, R = 10k
f –3dB = 125kHz, R = 50k
–30 V IN = 100mV rms
–36
V DD = 5V
R L = 1M
–42
1k 10k 100k 1M
FREQUENCY – Hz
TPC 22. –3 dB Bandwidths
I DD – SUPPLY CURRENT – µA
1200
A – V DD = 5.5V
CODE = 55 H
1000
B – V DD = 3.3V
CODE = 55 H
800
C – V DD = 5.5V
CODE = FF H
600
D – V DD = 3.3V
CODE = FF H
400
200
T A = 25C
D
0
1k 10k 100k 1M 10M
FREQUENCY – Hz
TPC 23. Supply Current vs.
Clock Frequency
A
B
C
R ON –
160
140
120
100
80
60
40
20
V DD = 2.7V
V DD = 5.5V
SEE TEST CIRCUIT 3
T A = 25C
0
0 1 2 3 4 5 6
V BIAS – V
TPC 24. AD8403 Incremental Wiper
ON Resistance vs. V DD
100
1
GAIN – dB
PHASE – Degrees
0
–10
–20
0
–45
–90
V DD = 5V
T A = 25C
WIPER SET AT
HALF-SCALE 80 H
I A SHUTDOWN CURRENT – nA
10
V DD = 5V
IDD – SUPPLY CURRENT – A
0.1
0.01
LOGIC INPUT
VOLTAGE = 0, V DD
V DD = 5.5V
V DD = 3.3V
100k
200k 400k 1M 2M 4M 6M 10M
FREQUENCY – Hz
TPC 25. 1 kΩ Gain and Phase
vs. Frequency
1
–55 –35
–15 5 25 45 65 85 105 125
TEMPERATURE – C
TPC 26. Shutdown Current vs.
Temperature
0.001
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE – C
TPC 27. Supply Current vs.
Temperature
REV. C
–11–