Datasheet AD818 (Analog Devices) - 14
| Manufacturer | Analog Devices |
| Description | Low Cost, Low Power Video Op Amp |
| Pages / Page | 16 / 14 — AD818. DIFFERENTIAL LINE RECEIVER. A HIGH SPEED, 3-OP AMP IN AMP. 2pF. … |
| Revision | D |
| File Format / Size | PDF / 630 Kb |
| Document Language | English |
AD818. DIFFERENTIAL LINE RECEIVER. A HIGH SPEED, 3-OP AMP IN AMP. 2pF. EACH AMPLIFIER. PIN 7. +15V. +VS. EACH. +5V. AMPLIFIER. 0.1. 0.01. 2.2
Model Line for this Datasheet
AD818
Text Version of Document
AD818 DIFFERENTIAL LINE RECEIVER A HIGH SPEED, 3-OP AMP IN AMP
The differential receiver circuit of Figure 9 is useful for many The circuit of Figure 11 uses three high speed op amps: two applications—from audio to video. It allows extraction of a low AD818s and an AD817. This high speed circuit lends itself well level signal in the presence of common-mode noise, as shown in to CCD imaging and other video speed applications. It has the Figure 10. optional flexibility of both dc and ac trims for common-mode rejection, plus the ability to adjust for minimum settling time.
2pF EACH AMPLIFIER 1k
⍀
1k
⍀
PIN 7 VB +15V +VS EACH +5V AMPLIFIER 10
F 0.1
F 1
F 0.1
F 0.01
F 2.2
F COMMON 10
F 0.1
F 1
F 0.1
F DIFFERENTIAL AD818 OUTPUT PIN 4 INPUT VOUT –15V –VS EACH AMPLIFIER 0.01
F 2.2
F –5V –VIN A1 SETTLING 1k
⍀
1k
⍀
AD818 TIME AC 2pF–8pF VA CMR ADJUST 2pF 1k
⍀
1k
⍀ Figure 9. Differential Line Receiver
1k
⍀
5pF VOUT A3 2pF RG AD818 1k
⍀
5pF RL 2k
⍀
3pF 100 1k
⍀
970
⍀
20ns 90 1V A2 50 V
⍀
A AD818 DC CMR +VIN ADJUST BANDWIDTH, SETTLING TIME, AND TOTAL HARMONIC DISTORTION VS. GAIN 2V 10 SMALL SETTLING THD + NOISE 0% CADJ SIGNAL TIME BELOW INPUT LEVEL GAIN RG (pF) BANDWIDTH TO 0.1% @ 10kHz OUTPUT 3 1k
⍀
2–8 14.7MHz 200ns 82dB 10 222
⍀
2–8 4.5MHz 370ns 81dB 100 20
⍀
2–8 960kHz 2.5
s 71dB
Figure 10. Performance of Line Receiver, RL = 150 W, G = +2 Figure 11. High Speed 3-Op Amp In Amp REV. D –13– Document Outline Untitled
The differential receiver circuit of Figure 9 is useful for many The circuit of Figure 11 uses three high speed op amps: two applications—from audio to video. It allows extraction of a low AD818s and an AD817. This high speed circuit lends itself well level signal in the presence of common-mode noise, as shown in to CCD imaging and other video speed applications. It has the Figure 10. optional flexibility of both dc and ac trims for common-mode rejection, plus the ability to adjust for minimum settling time.
2pF EACH AMPLIFIER 1k
⍀
1k
⍀
PIN 7 VB +15V +VS EACH +5V AMPLIFIER 10
F 0.1
F 1
F 0.1
F 0.01
F 2.2
F COMMON 10
F 0.1
F 1
F 0.1
F DIFFERENTIAL AD818 OUTPUT PIN 4 INPUT VOUT –15V –VS EACH AMPLIFIER 0.01
F 2.2
F –5V –VIN A1 SETTLING 1k
⍀
1k
⍀
AD818 TIME AC 2pF–8pF VA CMR ADJUST 2pF 1k
⍀
1k
⍀ Figure 9. Differential Line Receiver
1k
⍀
5pF VOUT A3 2pF RG AD818 1k
⍀
5pF RL 2k
⍀
3pF 100 1k
⍀
970
⍀
20ns 90 1V A2 50 V
⍀
A AD818 DC CMR +VIN ADJUST BANDWIDTH, SETTLING TIME, AND TOTAL HARMONIC DISTORTION VS. GAIN 2V 10 SMALL SETTLING THD + NOISE 0% CADJ SIGNAL TIME BELOW INPUT LEVEL GAIN RG (pF) BANDWIDTH TO 0.1% @ 10kHz OUTPUT 3 1k
⍀
2–8 14.7MHz 200ns 82dB 10 222
⍀
2–8 4.5MHz 370ns 81dB 100 20
⍀
2–8 960kHz 2.5
s 71dB
Figure 10. Performance of Line Receiver, RL = 150 W, G = +2 Figure 11. High Speed 3-Op Amp In Amp REV. D –13– Document Outline Untitled
