參數(shù)資料
型號(hào)： AD810AN
廠商： ANALOG DEVICES INC
元件分類： 音頻／視頻放大
英文描述： Low Power Video Op Amp with Disable
中文描述： 1 CHANNEL, VIDEO AMPLIFIER, PDIP8
封裝： MINI, PLASTIC, DIP-8
文件頁(yè)數(shù)： 13/16頁(yè)
文件大?。?/td> 514K
代理商： AD810AN
AD810
REV. A
–13–
of the disable the disable pin for
±
5 V supplies. If driven by
complementary output CMOS logic (such as the 74HC04), the
disable time (until the output goes high impedance) is about
100 ns and the enable time (to low impedance output) is about
170 ns on
±
5 V supplies. T he enable time can be extended to
about 750 ns by using open drain logic such as the 74HC05.
When operated on
±
15 V supplies, the AD810 disable pin may
be driven by open drain logic such as the 74C906. In this case,
adding a 10 k
pull-up resistor from the disable pin to the plus
supply will decrease the enable time to about 150 ns. If there is
a nonzero voltage present on the amplifier's output at the time it
is switched to the disabled state, some additional decay time will
be required for the output voltage to relax to zero. T he total
time for the output to go to zero will generally be about 250 ns
and is somewhat dependent on the load impedance.
OPE RAT ION AS A VIDE O LINE DRIVE R
T he AD810 is designed to offer outstanding performance at
closed-loop gains of one or greater. At a gain of 2, the AD810
makes an excellent video line driver. T he low differential gain
and phase errors and wide –0.1 dB bandwidth are nearly
independent of supply voltage and load (as seen in Figures 49
and 50).
AD810
75
7
3
2
0.1μF
+V
S
6
–V
S
4
0.1μF
V
IN
V
OUT
715
75
CABLE
75
75
75
CABLE
715
Figure 47. A Video Line Driver Operating at a Gain of +2
GAIN = +2
R
L
= 150
±2.5V
V
S
= ±15V
±5V
±2.5V
PHASE
GAIN
0
–5
10
100
–1
–2
–3
–4
1
1
1000
0
–45
–90
–135
–180
–225
–270
C
P
FREQUENCY – MHz
±5V
V
S
= ±15V
Figure 48. Closed-Loop Gain and Phase vs. Frequency,
G = +2, R
L
= 150, R
F
= 715
0.10
0
15
0.03
0.01
6
0.02
5
0.06
0.04
0.05
0.07
0.08
0.09
14
13
12
11
10
9
8
SUPPLY VOLTAGE – ± Volts
7
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
GAIN
PHASE
GAIN = +2
R
F
= 715
R
L
= 150
f
= 3.58MHz
100 IRE
MODULATED RAMP
D
D
Figure 49. Differential Gain and Phase vs. Supply Voltage
100k
1M
100M
10M
+0.1
0
–0.1
–0.1
0
+0.1
N
FREQUENCY – Hz
R
L
= 150
R
L
= 1k
±15V
±5V
±15V
±5V
±2.5
±2.5
Figure 50. Fine-Scale Gain (Normalized) vs. Frequency
for Various Supply Voltages, Gain = +2, R
F
= 715
110
40
20
2
30
70
50
60
80
90
100
18
16
14
12
10
8
6
SUPPLY VOLTAGE - ±Volts
4
–
PEAKING 1.0dB
PEAKING 0.1dB
G = +2
R
L
= 150
V
O
= 250mV p-p
R
F
= 500
R
F
= 750
R
F
= 1k
Figure 51. –3 dB Bandwidth vs. Supply Voltage,
Gain = +2, R
L
= 150
相關(guān)PDF資料
PDF描述
AD810AR Low Power Video Op Amp with Disable
AD810AR-REEL ECONOLINE: REC2.2-S_DR/H1 - 2.2W DIP Package- 1kVDC Isolation- Regulated Output- UL94V-0 Package Material- Continuous Short Circiut Protection- Internal SMD design- 100% Burned In- Efficiency to 75%
AD810 Low Power Video Op Amp with Disable(帶禁用的低功耗視頻運(yùn)放)
AD8110 Buffered Video Crosspoint Switches(視頻正交開關(guān))
AD8111 Buffered Video Crosspoint Switches(視頻正交開關(guān))
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