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AD827AQ-AD827JN-AD827JR-AD827SQ-AD827SQ/883B-AD827SQ883B
High Speed, Low Power Dual Op Amp
CONNECTION DIAGRAMSREV.B
High Speed, Low Power
Dual Op Amp
FEATURES
HIGH SPEED
50 MHz Unity Gain Stable Operation
300 V/ms Slew Rate
120 ns Settling Time
Drives Unlimited Capacitive Loads
EXCELLENT VIDEO PERFORMANCE
0.04% Differential Gain @ 4.4 MHz
0.198 Differential Phase @ 4.4 MHz
GOOD DC PERFORMANCE
2 mV max Input Offset Voltage
15 mV/8C Input Offset Voltage Drift
Available in Tape and Reel in Accordance with
EIA-481A Standard
LOW POWER
Only 10 mA Total Supply Current for Both Amplifiers65 V to 615 V Supplies
PRODUCT DESCRIPTIONThe AD827 is a dual version of Analog Devices’ industry-
standard AD847 op amp. Like the AD847, it provides high
speed, low power performance at low cost. The AD827 achieves
a 300 V/μs slew rate and 50 MHz unity-gain bandwidth while
consuming only 100 mW when operating from ±5 volt power
supplies. Performance is specified for operation using ±5 V to15 V power supplies.
The AD827 offers an open-loop gain of 3,500 V/V into 500 Ω
loads. It also features a low input voltage noise of 15 nV/√Hz,
and a low input offset voltage of 2 mV maximum. Common-
mode rejection ratio is a minimum of 80 dB. Power supply
rejection ratio is maintained at better than 20 dB with input
frequencies as high as 1 MHz, thus minimizing noise
feedthrough from switching power supplies.
The AD827 is also ideal for use in demanding video applica-
tions, driving coaxial cables with less than 0.04% differential
gain and 0.19° differential phase errors for 643 mV p-p into a
75 Ω reverse terminated cable.
The AD827 is also useful in multichannel, high speed data
conversion systems where its fast (120 ns to 0.1%) settling time
is of importance. In such applications, the AD827 serves as an
input buffer for 8-bit to 10-bit A/D converters and as an output
amplifier for high speed D/A converters.
APPLICATION HIGHLIGHTS1. Performance is fully specified for operation using ±5 V to
±15 V supplies.
2. A 0.04% differential gain and 0.19° differential phase error at
the 4.4 MHz color subcarrier frequency, together with its low
cost, make it ideal for many video applications.
3. The AD827 can drive unlimited capacitive loads, while its
30 mA output current allows 50 Ω and 75 Ω reverse-
terminated loads to be driven.
4. The AD827’s 50 MHz unity-gain bandwidth makes it an
ideal candidate for multistage active filters.
5. The AD827 is available in 8-pin plastic mini-DIP and cerdip,
20-pin LCC, and 16-pin SOIC packages. Chips and MIL-
STD-883B processing are also available.
8-Pin Plastic (N) and Cerdip
(Q) Packages
16-Pin Small Outline
(R) Package
20-Pin LCC (E) Package
AD827–SPECIFICATIONS(@ TA = +258C, unless otherwise noted)DYNAMIC PERFORMANCE
NOTESOffset voltage for the AD827 is guaranteed after power is applied and the device is fully warmed up. All other specifications are measured using high speed test equip-
ment, approximately 1 second after power is applied.Full Power Bandwidth = Slew Rate/2 π VPEAK.Gain = +1, rising edge.
All min and max specifications are guaranteed.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS1Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±18 V
Internal Power Dissipation2
Plastic (N) Package (Derate at 10 mW/°C) . . . . . . . .1.5 W
Cerdip (Q) Package (Derate at 8.7 mW/°C) . . . . . . . .1.3 W
Small Outline (R) Package (Derate at 10 mW/°C) . . .1.5 W
LCC (E) Package (Derate at 6.7 mW/°C) . . . . . . . . .1.0 W
Input Common Mode Voltage . . . . . . . . . . . . . . . . . . . . . .±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . .6 V
Output Short Circuit Duration3 . . . . . . . . . . . . . . . .Indefinite
Storage Temperature Range (N, R) . . . . . . .–65°C to +125°C
Storage Temperature Range (Q) . . . . . . . . .–65°C to +150°C
Operating Temperature Range
AD827J . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0°C to +70°C
AD827A . . . . . . . . . . . . . . . . . . . . . . . . . . .–40°C to +85°C
AD827S . . . . . . . . . . . . . . . . . . . . . . . . . .–55°C to +125°C
Lead Temperature Range
(Soldering to 60 sec) . . . . . . . . . . . . . . . . . . . . . . .+300°C
NOTESStresses 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 ratings for extended periods may affect device reliability.Maximum internal power dissipation is specified so that TJ does not exceed
+175°C at an ambient temperature of +25°C.
Thermal Characteristics:
Mini-DIP: θJA = 100°C/Watt; θJC = 33°C/ Watt
Cerdip: θJA = 110°C/Watt; θJC = 30°C/Watt
16-Pin Small Outline Package: θJA = 100°C/Watt
20-Pin LCC: θJA = 150°C/Watt; θJC = 35°C/WattIndefinite short circuit duration is only permissible as long as the absolute
maximum power rating is not exceeded.
ORDERING GUIDE
METALIZATION PHOTOGRAPHContact factory for latest dimensions.
Dimensions shown in inches and (mm).
Substrate is connected to V+.
AD827
AD827
INPUT COMMON-MODE RANGE – VoltsFigure 1.
vs. Supply Voltage
Figure 4.
Supply Voltage
QUIESCENT CURRENT – mAFigure 7.Quiescent Current vs.
Temperature
–Typical Characteristics(@ +258C & 615 V, unless otherwise noted)Figure 8.Short-Circuit Current
Limit vs. TemperatureOutput Voltage Swing vs.
Figure 9.Gain Bandwidth vs.
Temperature
Figure 10.Open-Loop Gain and
Phase Margin vs. Frequency
Figure 13.Common-Mode
Rejection Ratio vs. Frequency
Figure 16.Harmonic Distortion vs.
Frequency
Figure 11.Open-Loop Gain vs.
Load Resistance
Figure 14.Large Signal Frequency
Response
Figure 17.Input Voltage Noise
Spectral Density
Figure 12.Power Supply Rejection
Ratio vs. Frequency
Figure 15.Output Swing and Error
vs. Settling Time
Figure 18.Slew Rate vs.
Temperature
AD827Figure 19.Crosstalk vs. FrequencyFigure 20.Crosstalk Test Circuit
INPUT PROTECTION PRECAUTIONSAn input resistor (resistor RIN of Figure 21a) is recommended in
circuits where the input common-mode voltage to the AD827
may exceed (on a transient basis) the positive supply voltage.
This resistor provides protection for the input transistors by
limiting the maximum current that can be forced into their
bases.
For high performance circuits, it is recommended that a second
resistor (RB in Figures 21a and 22a) be used to reduce bias-
current errors by matching the impedance at each input. This
resistor reduces the error caused by offset voltages by more than
an order of magnitude.
Figure 21c.Follower Small
Signal Pulse Response
Figure 22c.Inverter Small
Signal Pulse Response
Figure 21b.Follower Large Signal
Pulse Response
Figure 22b.Inverter Large Signal
Pulse Response
Figure 21a.Follower Connection
Figure 22a.Inverter Connection
