Typical Characteristics, Inverting Connection–AD810
RF
RG
VIN
HP8130
PULSE
GENERATOR
+VS 0.1µF
7
2
AD810
6
3
4 0.1µF
VO TO
TEKTRONIX
P6201 FET
PROBE
VO
RL
–VS
Figure 31. Inverting Amplifier Connection
1V
100
VIN 90
20nS
VO
10
0%
1V
Figure 32. Small Signal Pulse Response, Gain = –1,
RF = 681 Ω, RL = 150 Ω, VS = ±5 V
PHASE
1
0
–1
GAIN
–2
VS = ±15V
–3
±5V
–4
±2.5V
180
GAIN = –1
135
RL = 150Ω
90
45
VS = ±15V
0
±5V
–45
±2.5V
–90
–5
1
10
100
FREQUENCY – MHz
1000
Figure 33. Closed-Loop Gain and Phase vs. Frequency
G = –1, RL = 150 Ω, RF = 681 Ω for ±15 V, 620 Ω for ±5 V
and ±2.5 V
PHASE
180
GAIN = –1
135
RL = 1kΩ
90
1
0
–1
GAIN
–2
VS = ±15V
–3
±5V
–4
±2.5V
45
VS = ±15V
0
±5V
–45
±2.5V
–90
–5
1
10
100
1000
FREQUENCY – MHz
Figure 34. Closed-Loop Gain and Phase vs. Frequency,
G = –1, RL = 1 kΩ, RF = 681 Ω for VS = ±15 V, 620 Ω for
±5 V and ±2.5 V
100
G = –1
RL = 150
90
VO = 250mV p-p
80
70
RF = 500Ω
60
50
RF = 681Ω
40
30
RF = 1kΩ
20
PEAKING ≤ 1.0dB
PEAKING ≤ 0.1dB
2 4 6 8 10 12 14 16 18
SUPPLY VOLTAGE – ±Volts
Figure 35. –3 dB Bandwidth vs. Supply Voltage,
Gain = –1, RL = 150 Ω
180
G = –1
160
RL = 1kΩ
140
VO = 250mV p-p
120
100
80
RF = 500Ω
60
40
RF = 649Ω
20
RF = 1kΩ
PEAKING ≤ 1.0dB
PEAKING ≤ 0.1dB
2 4 6 8 10 12 14 16 18
SUPPLY VOLTAGE – ±Volts
Figure 36. –3 dB Bandwidth vs. Supply Voltage,
Gain = –1, RL = 1 kΩ
REV. A
–9–