AD8651 Analog Devices, AD8651 Datasheet - Page 13

• Manufacturer Part Number: AD8651
• Description: 50 MHz, Precision, Low Distortion, Low Noise CMOS Amplifiers
• Manufacturer: Analog Devices

Specifications of AD8651

• -3db Bandwidth: 50MHz
• Slew Rate: 41V/µs
• Vos: 100µV
• Ib: 1pA
• # Opamps Per Pkg: 1
• Input Noise (nv/rthz): 4.5nV/rtHz
• Vcc-vee: 2.7V to 5.5V
• Isy Per Amplifier: 9mA
• Packages: SOIC,SOP

140
120
100
–20
80
60
40
20
0
100
100
10
80
60
40
20
80
60
40
20
0
0
10
1
Figure 49. Open-Loop Gain and Phase vs. Frequency
100
10
100
Figure 47. CMRR vs. Frequency
Figure 48. PSRR vs. Frequency
1k
–PSRR
100
1k
FREQUENCY (Hz)
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
+PSRR
1k
100k
10k
10k
1M
100k
100k
10M
V
S
V
V
1M
S
S
= ±1.35V
1M
= ±1.35V
= ±1.35V
100M
10M
10M
0
–45
–90
–135
–180
Rev. C | Page 13 of 20
–100
–120
–140
–20
–40
–60
–80
–20
–40
120
118
116
114
112
110
108
0
100
60
40
20
0
–50
5k
Figure 52. Channel Separation vs. Frequency.
G = 100
G = 10
G = 1
Figure 50. Open-Loop Gain vs. Temperature
Figure 51. Closed-Loop Gain vs. Frequency
28mV p-p
1k
50k
V
IN
0
FREQUENCY (Hz)
TEMPERATURE (°C)
10k
500k
FREQUENCY (Hz)
+2.5V
–2.5V
V+
V–
50
100k
5M
V
OUT
AD8651/AD8652
V–
V+
10kΩ
R1
50M
100
1M
V
V
R
C
V
R
S
S
S
L
L
L
100Ω
= ±2.5V
= 1kΩ
= ±1.35V
= 1MΩ
= 47pF
= ±1.35V
R2
10M
300M
150