ADA4857-2 Analog Devices, ADA4857-2 Datasheet - Page 12

• Manufacturer Part Number: ADA4857-2
• Description: Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp
• Manufacturer: Analog Devices

Specifications of ADA4857-2

• -3db Bandwidth: 750MHz
• Slew Rate: 2.8kV/µs
• Vos: 2mV
• Ib: 2µA
• # Opamps Per Pkg: 2
• Input Noise (nv/rthz): 4.4nV/rtHz
• Vcc-vee: 4.5V to 10.5V
• Isy Per Amplifier: 5.5mA
• Packages: CSP

ADA4857-1/ADA4857-2
Figure 26. Small Signal Transient Response for Various Capacitive Loads (LFCSP)
Figure 27. Small Signal Transient Response for Various Supply Voltages (LFCSP)
Figure 28. Closed-Loop Output Impedance vs. Frequency for Various Gains
1000
–0.05
–0.10
–0.15
–0.20
–0.25
–0.05
–0.10
–0.15
–0.20
–0.25
100
0.25
0.20
0.15
0.10
0.05
0.25
0.20
0.15
0.10
0.05
0.1
10
1
0.1
0
0
V
S
= ±5V
1
G = +5
C
L
= 1.5pF
FREQUENCY (MHz)
TIME (10ns/DIV)
TIME (10ns/DIV)
10
V
S
V
G = +2
S
= ±5V
= ±2.5V
100
C
L
= 10pF
1000
V
R
G = +1
R
G = +1
S
L
L
= ±5V
= 1kΩ
= 1kΩ
Rev. B | Page 12 of 20
Figure 30. Large Signal Transient Response for Various Load Resistances (LFCSP)
Figure 29. Large Signal Transient Response for Various Load Resistances (SOIC)
0.01
100
–0.4
–0.8
–1.2
–1.6
–2.0
–0.4
–0.8
–1.2
–1.6
–2.0
0.1
10
2.0
1.6
1.2
0.8
0.4
2.0
1.6
1.2
0.8
0.4
1
0
0
1
Figure 31. Closed-Loop Input Impedance vs. Frequency
R
L
= 1kΩ
10
FREQUENCY (MHz)
TIME (10ns/DIV)
TIME (10ns/DIV)
R
L
= 1kΩ
100
Data Sheet
R
R
L
L
= 100Ω
= 100Ω
V
G = +2
V
G = +2
V
G = +1
S
S
S
= ±5V
= ±5V
= ±5V
1000