a
FEATURES
Low Cost
High Speed
50 MHz Unity Gain Bandwidth
350 V/ s Slew Rate
45 ns Settling Time to 0.1% (10 V Step)
Flexible Power Supply
Specified for Single (+5 V) and
Dual ( 5 V to 15 V) Power Supplies
Low Power: 7.5 mA max Supply Current
High Output Drive Capability
Drives Unlimited Capacitive Load
50 mA Minimum Output Current
Excellent Video Performance
70 MHz 0.1 dB Bandwidth (Gain = +1)
0.04% & 0.08 Differential Gain & Phase Errors
@ 3.58 MHz
Available in 8-Pin SOIC and 8-Pin Plastic Mini-DIP
PRODUCT DESCRIPTION
High Speed, Low Power
Wide Supply Range Amplifier
AD817
CONNECTION DIAGRAM
8-Pin Plastic Mini-DIP (N) and
SOIC (R) Packages
NULL
–IN
+IN
–V
S
1
2
3
4
AD817
8
7
6
5
NULL
+V
S
OUTPUT
NC
TOP VIEW
NC = NO CONNECT
The AD817 is fully specified for operation with a single +5 V
power supply and with dual supplies from
±
5 V to
±
15 V. This
power supply flexibility, coupled with a very low supply current
of 7.5 mA and excellent ac characteristics under all power sup-
ply conditions, make the AD817 the ideal choice for many de-
manding yet power sensitive applications.
In applications such as ADC buffers and line drivers the AD817
simplifies the design task with its unique combination of a
50 mA minimum output current and the ability to drive
unlimited capacitive loads.
The AD817 is available in 8-pin plastic mini-DIP and SOIC
packages.
ORDERING GUIDE
The AD817 is a low cost, low power, single/dual supply, high
speed op amp which is ideally suited for a broad spectrum of
signal conditioning and data acquisition applications. This
breakthrough product also features high output current drive
capability and the ability to drive an unlimited capacitive load
while still maintaining excellent signal integrity.
The 50 MHz unity gain bandwidth, 350 V/µs slew rate and set-
tling time of 45 ns (0.1%) make possible the processing of high
speed signals common to video and imaging systems. Further-
more, professional video performance is attained by offering dif-
ferential gain & phase errors of 0.04% & 0.08° @ 3.58 MHz
and 0.1 dB flatness to 70 MHz (gain = +1).
Model
AD817AN
AD817AR
Temperature
Range
–40°C to +85°C
–40°C to +85°C
Package
Description
Package
Option
8-Pin Plastic DIP
N-8
8-Pin Plastic SOIC R-8
1kΩ
3.3µF
100
+V
S
5V
500ns
0.01µF
HP
PULSE
GENERATOR
V
IN
1kΩ
2
50Ω
3
7
90
100pF
LOAD
V
OUT
6
0.01µF
C
L
1000pF
TEKTRONIX
P6201 FET
PROBE
10
0%
AD817
4
3.3µF
–V
S
1000pF
LOAD
AD817 Driving a Large Capacitive Load
REV. B
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.
© Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
AD817
Parameter
INPUT COMMON-MODE
VOLTAGE RANGE
Conditions
V
S
±
5 V
±
15 V
0, +5 V
OUTPUT VOLTAGE SWING
R
LOAD
= 500
Ω
R
LOAD
= 150
Ω
R
LOAD
= 1 kΩ
R
LOAD
= 500
Ω
R
LOAD
= 500
Ω
±
5 V
±
5 V
±
15 V
±
15 V
0, +5 V
±
15 V
±
5 V
0, +5 V
±
15 V
Min
+3.8
–2.7
+13
–12
+3.8
+1.2
3.3
3.2
13.3
12.8
+1.5,
+3.5
50
50
30
AD817A
Typ
Max
+4.3
–3.4
+14.3
–13.4
+4.3
+0.9
3.8
3.6
13.7
13.4
Units
V
V
V
V
V
V
±
V
±
V
±
V
±
V
V
mA
mA
mA
mA
kΩ
pF
Ω
±
18
+36
7.5
7.5
7.5
7.5
V
V
mA
mA
mA
mA
Output Current
Short-Circuit Current
INPUT RESISTANCE
INPUT CAPACITANCE
OUTPUT RESISTANCE
POWER SUPPLY
Operating Range
Quiescent Current
T
MIN
to T
MAX
T
MIN
to T
MAX
NOTES
1
Full power bandwidth = slew rate/2
π
V
PEAK
.
Specifications subject to change without notice.
90
300
1.5
Open Loop
Dual Supply
Single Supply
±
2.5
+5
8
±
5 V
±
5 V
±
15 V
±
15 V
7.0
7.0
MAXIMUM POWER DISSIPATION – Watts
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
18 V
Internal Power Dissipation
2
Plastic (N) . . . . . . . . . . . . . . . . . . . . . . See Derating Curves
Small Outline (R) . . . . . . . . . . . . . . . . . See Derating Curves
Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . .
±
V
S
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .
±
6 V
Output Short Circuit Duration . . . . . . . . See Derating Curves
Storage Temperature Range N, R . . . . . . . . . –65°C to +125°C
Operating Temperature Range . . . . . . . . . . . . –40°C to +85°C
Lead Temperature Range (Soldering 10 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 rating conditions for extended periods may affect device reliability.
2
Specification is for device in free air: 8-pin plastic package:
θ
JA
= 100°C/watt;
8-pin SOIC package:
θ
JA
= 160°C/watt.
ABSOLUTE MAXIMUM RATINGS
1
2.0
8-PIN MINI-DIP PACKAGE
T
J
= +150
°
C
1.5
1.0
8-PIN SOIC PACKAGE
0.5
0
–50 –40 –30 –20 –10 0 10 20 30 40 50 60
AMBIENT TEMPERATURE –
°
C
70
80 90
Maximum Power Dissipation vs. Temperature
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD817 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. B
–3–
AD817–Typical Characteristics
20
INPUT COMMON-MODE RANGE –
±
Volts
8.0
15
+V
CM
10
–V
CM
5
QUIESCENT SUPPLY CURRENT – mA
7.5
+85°C
7.0
-40°C
+25°C
6.5
0
0
5
10
15
SUPPLY VOLTAGE –
±
Volts
20
6.0
0
5
10
15
SUPPLY VOLTAGE –
±Volts
20
Figure 1. Common-Mode Voltage Range vs. Supply
Figure 4. Quiescent Supply Current vs. Supply Voltage
for Various Temperatures
400
20
OUTPUT VOLTAGE SWING –
±Volts
15
350
SLEW RATE – V/µs
R
L
= 500Ω
10
300
R
L
= 150Ω
5
250
0
200
0
5
10
15
SUPPLY VOLTAGE –
±Volts
20
0
5
10
15
SUPPLY VOLTAGE –
±Volts
20
Figure 2. Output Voltage Swing vs. Supply
Figure 5. Slew Rate vs. Supply Voltage
30
100
CLOSED-LOOP OUTPUT IMPEDANCE – Ohms
OUTPUT VOLTAGE SWING – Volts p-p
25
V
S
=
±15V
20
10
15
1
10
V
S
=
±5V
5
0.1
0
10
100
1k
LOAD RESISTANCE –
Ω
10k
0.01
1k
10k
100k
1M
FREQUENCY – Hz
10M
100M
Figure 3. Output Voltage Swing vs. Load Resistance
Figure 6. Closed-Loop Output Impedance vs. Frequency
–4–
REV. B
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