Datasheet

Data Sheet ADA4858-3
Rev. B | Page 11 of 20
1000
900
800
700
600
500
400
300
200
100
0 0.5 1.0 1.5 2.0 2.5
0
SLEW RATE (V/µs)
OUTPUT VOLTAGE (V p-p)
07714-028
RISE, G = 2
FALL, G = 2
FALL, G = 1
RISE, G = 1
Figure 28. Slew Rate vs. Output Voltage
0
–3.2
–2.8
–2.4
–2.0
–1.6
–1.2
–0.8
–0.4
24
22
20
18
16
14
12
10
8
2.5 5.04.54.03.53.0
CHARGE PUMP OUTPUT VOLTAGE (V)
CURRENT (mA)
CHARGE PUMP SUPPLY VOLTAGE (V)
AMPLIFIER
CURRENT
OUTPUT
VOLTAGE
07714-029
CHARGE
PUMP CURRENT
Figure 29. Charge Pump Output Voltage and Current vs.
Charge Pump Supply Voltage
20
18
16
14
12
10
8
6
4
2
0
100 1k 10k
100k 1M
INPUT VOLTAGE NOISE (nV/ Hz)
FREQUENCY (Hz)
07714-030
Figure 30. Input Voltage Noise vs. Frequency
1000
900
800
700
600
500
400
300
200
100
0
0.5
1.0 1.5 2.0 2.5
0
SLEW RATE (V/µs)
OUTPUT VOLTAGE (V p-p)
RISE, G = 1
RISE, G = 2
FALL, G = 1
07714-031
V
S
= 3.3V
FALL, G = 2
Figure 31. Slew Rate vs. Output Voltage, V
S
= 3.3 V
1.5
–1.5
–1.0
–0.5
0
0.5
1.0
6
5
4
3
2
1
0
OUTPUT VOLTAGE (V)
POWER-DOWN VOLTAGE (V)
TIME (400ns/DIV)
07714-032
V
PD
V
OUT
Figure 32. Enable/Power-Down Time
100
90
80
70
60
50
40
30
20
10
0
100 1k 10k 100k 1M
INPUT CURRENT NOISE (pA/ Hz)
FREQUENCY (Hz)
+IN
–IN
07714-033
Figure 33. Input Current Noise vs. Frequency