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FEATURES
High Speed
80 MHz Bandwidth (3 dB, G = +1)
75 MHz Bandwidth (3 dB, G = +2)
1000 V/ s Slew Rate
50 ns Settling Time to 0.1% (V
O
= 10 V Step)
Ideal for Video Applications
30 MHz Bandwidth (0.1 dB, G = +2)
0.02% Differential Gain
0.04 Differential Phase
Low Noise
2.9 nV/√Hz Input Voltage Noise
13 pA/√Hz Inverting Input Current Noise
Low Power
8.0 mA Supply Current max
2.1 mA Supply Current (Power-Down Mode)
High Performance Disable Function
Turn-Off Time 100 ns
Break Before Make Guaranteed
Input to Output Isolation of 64 dB (OFF State)
Flexible Operation
Specified for 5 V and 15 V Operation
2.9 V Output Swing Into a 150 Load (V
S
= 5 V)
APPLICATIONS
Professional Video Cameras
Multimedia Systems
NTSC, PAL & SECAM Compatible Systems
Video Line Driver
ADC/DAC Buffer
DC Restoration Circuits
Low Power
Video Op Amp with Disable
AD810
CONNECTION DIAGRAM
8-Pin Plastic Mini-DIP (N), SOIC (R)
and Cerdip (Q) Packages
OFFSET
NULL
–IN
+IN
–VS
1
2
3
4
TOP VIEW
AD810
8
7
6
5
DISABLE
+VS
OUTPUT
OFFSET
NULL
PRODUCT DESCRIPTION
The AD810 is a composite and HDTV compatible, current
feedback, video operational amplifier, ideal for use in systems
such as multimedia, digital tape recorders and video cameras.
The 0.1 dB flatness specification at bandwidth of 30 MHz
(G = +2) and the differential gain and phase of 0.02% and
0.04° (NTSC) make the AD810 ideal for any broadcast quality
video system. All these specifications are under load conditions
of 150
Ω
(one 75
Ω
back terminated cable).
The AD810 is ideal for power sensitive applications such as
video cameras, offering a low power supply current of 8.0 mA
max. The disable feature reduces the power supply current to
only 2.1 mA, while the amplifier is not in use, to conserve
power. Furthermore the AD810 is specified over a power supply
range of
±
5 V to
±
15 V.
The AD810 works well as an ADC or DAC buffer in video
systems due to its unity gain bandwidth of 80 MHz. Because the
AD810 is a transimpedance amplifier, this bandwidth can be
maintained over a wide range of gains while featuring a low
noise of 2.9 nV/√Hz for wide dynamic range applications.
0.10
0.20
GAIN = +2
R
F
= 715Ω
R
L
= 150Ω
f
C
= 3.58MHz
100 IRE
MODULATED RAMP
0.18
0.16
0.14
0.12
0.10
GAIN
PHASE
0.08
0.06
0.04
0.02
0
15
0
0.09
PHASE SHIFT – Degrees
PHASE
–90
1
–135
V
S
= ±15V
–180
GAIN
–1
±2.5V
–2
V
S
= ±15V
–3
–4
–5
1
10
100
FREQUENCY – MHz
1000
±5V
–270
±5V
–225
DIFFERENTIAL GAIN – %
–45
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
CLOSED-LOOP GAIN – dB
0
±2.5V
0
5
6
7
8
9
10
11
12
13
14
SUPPLY VOLTAGE – ± Volts
Closed-Loop Gain and Phase vs. Frequency, G = +2,
R
L
= 150, R
F
= 715
Ω
Differential Gain and Phase vs. Supply Voltage
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
DIFFERENTIAL PHASE – Degrees
GAIN = +2
R
L
= 150Ω
AD810–SPECIFICATIONS
(@ T = +25 C and V =
A
S
15 V dc, R
L
= 150
Min
40
55
40
50
13
15
unless otherwise noted)
AD810S
1
Min
Typ
Max
40
55
40
50
13
15
50
75
80
65
22
30
16
350
1000
50
125
0.02
0.04
0.04
0.045
–61
6
7.5
1.5
4
15
0.8
2
1.0
0.2
80
72
56
50
0.4
60
0.3
3.5
1.0
100
88
64
60
0.1
72
0.05
2.9
13
1.5
±
2.5
±
12
±
2.5
±
12.5
±
12
30
±
3
±
13
±
2.9
±
12.9
150
60
15
2.5
10
40
2
6
15
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
V/µs
V/µs
ns
ns
%
%
Degrees
Degrees
dBc
mV
mV
µV/°C
µA
µA
MΩ
MΩ
dB
dB
dB
dB
µA/V
dB
µA/V
nV/√Hz
pA/√Hz
pA/√Hz
V
V
V
V
V
mA
mA
Ω
MΩ
Ω
pF
dB
Parameter
DYNAMIC PERFORMANCE
3 dB Bandwidth
Conditions
(G = +2) R
FB
= 715
(G = +2) R
FB
= 715
(G = +1) R
FB
= 1000
(G = +10) R
FB
= 270
(G = +2) R
FB
= 715
(G = +2) R
FB
= 715
V
O
= 20 V p-p,
R
L
= 400
Ω
R
L
= 150
Ω
R
L
= 400
Ω
10 V Step, G = –1
10 V Step, G = –1
f = 3.58 MHz
f - 3.58 MHz
f = 3.58 MHz
f = 3.58 MHz
f = 10 MHz, V
O
= 2 V p-p
R
L
= 400
Ω,
G = +2
T
MIN
–T
MAX
V
S
±
5 V
±
15 V
±
15 V
±
15 V
±
5 V
±
15 V
±
15 V
±
5 V
±
15 V
±
15 V
±
15 V
±
15 V
±
5 V
±
15 V
±
5 V
±
15 V
±
5 V,
±
15 V
±
5 V,
±
15 V
AD810A
Typ
Max
50
75
80
65
22
30
16
350
1000
50
125
0.02
0.04
0.04
0.045
–61
1.5
2
7
0.7
2
0.1 dB Bandwidth
Full Power Bandwidth
Slew Rate
2
Settling Time to 0.1%
Settling Time to 0.01%
Differential Gain
Differential Phase
Total Harmonic Distortion
INPUT OFFSET VOLTAGE
Offset Voltage Drift
INPUT BIAS CURRENT
–Input
+Input
OPEN-LOOP
TRANSRESISTANCE
OPEN-LOOP
DC VOLTAGE GAIN
COMMON-MODE REJECTION
V
OS
±
Input Current
POWER SUPPLY REJECTION
V
OS
±
Input Current
INPUT VOLTAGE NOISE
INPUT CURRENT NOISE
INPUT COMMON-MODE
VOLTAGE RANGE
OUTPUT CHARACTERISTICS
Output Voltage Swing
3
0.05
0.07
0.07
0.08
0.05
0.07
0.07
0.08
T
MIN
–T
MAX
T
MIN
–T
MAX
T
MIN
–T
MAX
V
O
=
±
10 V, R
L
= 400
Ω
V
O
=
±
2.5 V, R
L
= 100
Ω
T
MIN
–T
MAX
V
O
=
±
10 V, R
L
= 400
Ω
V
O
=
±
2.5 V, R
L
= 100
Ω
T
MIN
–T
MAX
V
CM
=
±
12 V
V
CM
=
±
2.5 V
T
MIN
–T
MAX
T
MIN
–T
MAX
T
MIN
–T
MAX
f = 1 kHz
–I
IN
, f = 1 kHz
+I
IN
, f = 1 kHz
±
5 V,
±
15 V
±
5 V,
±
15 V
±
15 V
±
5 V
±
15 V
±
5 V
±
15 V
±
5 V
±
5 V,
±
15 V
±
4.5 V to
±
18 V
65
±
5 V,
±
15 V
±
5 V,
±
15 V
±
5 V,
±
15 V
±
5 V
±
15 V
±
2.5
±
12
±
2.5
±
12.5
±
12
40
1.0
0.3
86
76
56
52
5
7.5
5
10
3.5
1.2
100
88
64
60
0.1
72
0.05
2.9
13
1.5
±
3.0
±
13
±
2.9
±
12.9
150
60
15
0.4
0.3
R
L
= 150
Ω,
T
MIN
–T
MAX
R
L
= 400
Ω
R
L
= 400
Ω,
T
MIN
–T
MAX
T
MIN
–T
MAX
Open Loop (5 MHz)
+Input
–Input
+Input
f = 5 MHz, See Figure 43
See Figure 43
Short-Circuit Current
Output Current
OUTPUT RESISTANCE
INPUT CHARACTERISTICS
Input Resistance
Input Capacitance
DISABLE CHARACTERISTICS
4
OFF Isolation
OFF Output Impedance
±
5 V
±
15 V
±
15 V
±
15 V
±
5 V,
±
15 V
±
15 V
±
15 V
±
15 V
2.5
10
40
2
64
(R
F
+ R
G
) 13 pF
64
(R
F
+ R
G
) 13 pF
–2–
REV. A
AD810
Parameter
Turn On Time
5
Turn Off Time
Disable Pin Current
Min Disable Pin Current to
Disable
POWER SUPPLY
Operating Range
Quiescent Current
T
MIN
–T
MAX
Power-Down Current
Conditions
Z
OUT
= Low, See Figure 54
Z
OUT
= High
Disable Pin = 0 V
V
S
Min
AD810A
Typ
Max
170
100
50
290
30
±
2.5
±
3.0
6.7
6.8
8.3
1.8
2.1
±
18
±
18
7.5
8.0
10.0
2.3
2.8
±
2.5
±
3.5
6.7
6.8
9
1.8
2.1
AD810S
1
Min
Typ
Max
170
100
50
290
30
±
18
±
18
7.5
8.0
11.0
2.3
2.8
Units
ns
ns
µA
µA
µA
V
V
mA
mA
mA
mA
mA
±
5 V
±
15 V
±
5 V,
±
15 V
75
400
75
400
T
MIN
–T
MAX
+25°C to T
MAX
T
MIN
±
5 V
±
15 V
±
5 V,
±
15 V
±
5 V
±
15 V
NOTES
1
See Analog Devices Military Data Sheet for 883B Specifications.
2
Slew rate measurement is based on 10% to 90% rise time with the amplifier configured for a gain of –10.
3
Voltage Swing is defined as useful operating range, not the saturation range.
4
Disable guaranteed break before make.
5
Turn On Time is defined with
±
5 V supplies using complementary output CMOS to drive the disable pin.
Specifications subject to change without notice.
TOTAL POWER
DISSIPATION – Watts
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V
Internal Power Dissipation
2
. . . . . . . Observe Derating Curves
Output Short Circuit Duration . . . . Observe Derating Curves
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . .
±
V
S
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .
±
6 V
Storage Temperature Range
Plastic DIP . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C
Cerdip . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Small Outline IC . . . . . . . . . . . . . . . . . . . –65°C to +125°C
Operating Temperature Range
AD810A . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
AD810S . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . +300°C
NOTES
1
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum raring conditions for extended periods may affect device reliability.
2
8-Pin Plastic Package:
θ
JA
= 90°C/Watt; 8-Pin Cerdip Package:
θ
JA
= 110°C/Watt;
8-Pin SOIC Package:
θ
JA
= 150°C/Watt.
ABSOLUTE MAXIMUM RATINGS
1
MAXIMUM POWER DISSIPATION
The maximum power that can be safely dissipated by the
AD810 is limited by the associated rise in junction temperature.
For the plastic packages, the maximum safe junction tempera-
ture is 145°C. For the cerdip package, the maximum junction
temperature is 175°C. If these maximums are exceeded momen-
tarily, proper circuit operation will be restored as soon as the die
temperature is reduced. Leaving the device in the “overheated”
condition for an extended period can result in device burnout.
To ensure proper operation, it is important to observe the
derating curves.
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
–60
8-PIN
SOIC
–40
–20
0
20
40
60
80
8-PIN
MINI-DIP
8-PIN
CERDIP
8-PIN
MINI-DIP
100
120
140
ESD SUSCEPTIBILITY
AMBIENT TEMPERATURE –
°
C
ESD (electrostatic discharge) sensitive device. Electrostatic
charges as high as 4000 volts, which readily accumulate on the
human body and on test equipment, can discharge without
detection. Although the AD810 features ESD protection
circuitry, permanent damage may still occur on these devices if
they are subjected to high energy electrostatic discharges.
Therefore, proper ESD precautions are recommended to avoid
any performance degradation or loss of functionality.
ORDERING GUIDE
Model
AD810AN
AD810AR
AD810AR-REEL
5962-9313201MPA
Temperature
Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
Package
Description
8-Pin Plastic DIP
8-Pin Plastic SOIC
8-Pin Plastic SOIC
8-Pin Cerdip
Package
Option
N-8
R-8
R-8
Q-8
Maximum Power Dissipation vs. Temperature
While the AD810 is internally short circuit protected, this may
not be sufficient to guarantee that the maximum junction
temperature is not exceeded under all conditions.
0.1µF
+V
S
7
2
3
SEE TEXT
10kΩ
1
5
6
0.1µF
AD810
4
–V
S
Offset Null Configuration
REV. A
–3–
AD810 –Typical Characteristics
MAGNITUDE OF THE OUTPUT VOLTAGE – ±Volts
20
MAGNITUDE OF THE OUTPUT VOLTAGE – ±Volts
20
15
NO LOAD
10
15
NO LOAD
10
R
L
= 150Ω
5
R
L
= 150Ω
5
0
0
5
10
15
SUPPLY VOLTAGE – ±Volts
20
0
0
5
10
15
SUPPLY VOLTAGE – ±Volts
20
Figure 1. Input Common-Mode Voltage Range vs.
Supply Voltage
35
Figure 2. Output Voltage Swing vs. Supply
10
OUTPUT VOLTAGE – Volts p-p
30
±15V SUPPLY
9
SUPPLY CURRENT – mA
25
20
15
10
±5V SUPPLY
5
V
S
= ±15V
8
V
S
= ±5V
7
6
5
0
10
100
1k
LOAD RESISTANCE – Ohms
10k
4
–60
–40
–20
0
20
40
60
80
100
120
140
JUNCTION TEMPERATURE –
°
C
Figure 3. Output Voltage Swing vs. Load Resistance
Figure 4. Supply Current vs. Junction Temperature
10
8
10
8
INPUT BIAS CURRENT – µA
6
NONINVERTING INPUT
4
2
0
–2
–4
–6
–8
–10
–60
–40
–20
20
40
60
80
100
120
140
INVERTING INPUT
V
S
= ±5V, ±15V
V
S
= ±5V, ±15V
INPUT OFFSET VOLTAGE – mV
6
4
V
S
= ±5V
2
0
–2
–4
–6
–8
–10
–60
–40
–20
0
20
40
60
80
100
120
140
V
S
= ±15V
0
JUNCTION TEMPERATURE –
°
C
JUNCTION TEMPERATURE –
°
C
Figure 5. Input Bias Current vs. Temperature
Figure 6. Input Offset Voltage vs. Junction Temperature
–4–
REV. A
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