AD8684 Analog Devices, AD8684 Datasheet - Page 5

• Manufacturer Part Number: AD8684
• Description: Quad Low Power, High Speed JFET Operational Amplifiers
• Manufacturer: Analog Devices

Specifications of AD8684

• -3db Bandwidth: 3.5MHz
• Slew Rate: 9V/µs
• Vos: 350µV
• Ib: 6pA
• # Opamps Per Pkg: 4
• Input Noise (nv/rthz): 36nV/rtHz
• Vcc-vee: 9V to 36V
• Isy Per Amplifier: 250µA
• Packages: SOIC,SOP

TYPICAL PERFORMANCE CHARACTERISTICS
–20
–40
80
60
40
20
45
40
35
30
25
20
15
10
0
80
70
60
50
40
30
20
10
Figure 3. AD8682 Open-Loop Gain and Phase vs. Frequency
1k
5
0
–75
0
0
Figure 5. Small Signal Overshoot vs. Load Capacitance
V
R
V
A
T
Figure 4. AD8682 Open-Loop Gain vs. Temperature
R
A
V
S
IN
VCL
L
L
S
= ±15V
= 25°C
= 2kΩ
= 100mV p-p
= 10kΩ
= ±15V
–50
= 1
100
10k
–25
LOAD CAPACITANCE (pF)
FREQUENCY (Hz)
TEMPERATURE (°C)
0
200
100k
25
+OS
–OS
300
50
1M
75
400
V
T
S
A
100
= ±15V
= 25°C
10M
125
500
180
135
90
45
0
–45
–90
Rev. B | Page 5 of 16
1000
–10
–20
–30
100
0.1
70
60
50
40
30
20
10
30
25
20
15
10
10
5
0
0
1
–75
–75
1k
Figure 8. AD8682 Input Bias Current vs. Temperature
A
A
A
V
V
Figure 6. AD8682 Closed-Loop Gain vs. Frequency
S
CM
VCL
VCL
VCL
= ±15V
= 0V
–50
–50
= 100
= 10
= 1
Figure 7. Slew Rate vs. Temperature
–25
–25
10k
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (Hz)
0
0
100k
25
25
+SR
–SR
50
50
AD8682/AD8684
75
75
1M
R
V
C
V
T
L
S
L
100
100
S
A
= 10kΩ
= ±15V
= 50pF
= ±15V
= 25°C
125
125
10M