AD848AQ Analog Devices Inc, AD848AQ Datasheet

Operational Amplifier IC

AD848AQ

Manufacturer Part Number
AD848AQ
Description
Operational Amplifier IC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD848AQ

Amplifier Type
Operational
Mounting Type
Through Hole
Package / Case
8-CDIP
Rohs Status
RoHS non-compliant
Number Of Circuits
1
Slew Rate
300 V/µs
Gain Bandwidth Product
175MHz
Current - Input Bias
3.3µA
Voltage - Input Offset
200µV
Current - Supply
5.1mA
Current - Output / Channel
32mA
Voltage - Supply, Single/dual (±)
±4.5 V ~ 18 V
Operating Temperature
-40°C ~ 85°C
Output Type
-
-3db Bandwidth
-
Lead Free Status / RoHS Status

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a
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.
PRODUCT DESCRIPTION
The AD848 and AD849 are high speed, low power monolithic
operational amplifiers. The AD848 is internally compensated so
that it is stable for closed loop gains of 5 or greater. The AD849
is fully decompensated and is stable at gains greater than 24.
The AD848 and AD849 achieve their combination of fast ac
and good dc performance by utilizing Analog Devices’ junction
isolated complementary bipolar (CB) process. This process
enables these op amps to achieve their high speed while only
requiring 4.8 mA of current from the power supplies.
The AD848 and AD849 are members of Analog Devices’ family
of high speed op amps. This family includes, among others, the
AD847 which is unity gain stable, with a gain bandwidth of
50 MHz. For more demanding applications, the AD840,
AD841 and AD842 offer even greater precision and greater
output current drive.
The AD848 and AD849 have good dc performance. When
operating with 5 V supplies, they offer open loop gains of
13 V/mV (AD848 with a 500
voltage of 1 mV maximum. Common-mode rejection is a
minimum of 92 dB. Output voltage swing is 3 V even into
loads as low as 150 .
FEATURES
725 MHz Gain Bandwidth – AD849
175 MHz Gain Bandwidth – AD848
4.8 mA Supply Current
300 V/ s Slew Rate
80 ns Settling Time to 0.1% for a 10 V Step – AD849
Differential Gain: AD848 = 0.07%, AD849 = 0.08%
Differential Phase: AD848 = 0.08 , AD849 = 0.04
Drives Capacitive Loads
DC PERFORMANCE
3 nV/ Hz Input Voltage Noise – AD849
85 V/mV Open Loop Gain into a 1 k
1 mV max Input Offset Voltage
Performance Specified for
Available in Plastic, Hermetic Cerdip and Small Outline
Available in Tape and Reel in Accordance with
APPLICATIONS
Cable Drivers
8- and 10-Bit Data Acquisition Systems
Video and R
Signal Generators
Packages. Chips and MIL-STD-883B Parts Available.
EIA-481A Standard
F
Amplification
load) and low input offset
5 V and
Load – AD849
15 V Operation
APPLICATIONS HIGHLIGHTS
1. The high slew rate and fast settling time of the AD848 and
2. In order to meet the needs of both video and data acquisition
3. Both amplifiers offer full power bandwidth greater than
4. The AD848 and AD849 remain stable when driving any
5. Laser wafer trimming reduces the input offset voltage to
6. The AD848 is an enhanced replacement for the LM6164
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
AD849 make them ideal for video instrumentation circuitry,
low noise pre-amps and line drivers.
applications, the AD848 and AD849 are optimized and
tested for 5 V and 15 V power supply operation.
20 MHz (for 2 V p-p with 5 V supplies).
capacitive load.
1 mV maximum on all grades, thus eliminating the need for
external offset nulling in many applications.
series and can function as a pin-for-pin replacement for
many high speed amplifiers such as the HA2520/2/5 and
EL2020 in applications where the gain is 5 or greater.
OFFSET
OFFSET
CONNECTION DIAGRAMS
High Speed, Low Power
NULL
NULL
NULL
20-Terminal LCC Pinout
NC
NC
NC
–V
–IN
+IN
S
Small Outline (R) and
Cerdip (Q) Packages
19
20
2
3
1
1
2
3
4
NC = NO CONNECT
(Not to Scale)
Monolithic Op Amp
NC = NO CONNECT
AD848/49
TOP VIEW
AD848SE/883B
18
Plastic (N),
4
(Not to Scale)
17
TOP VIEW
5
AD848/AD849
16
6
15
8
7
6
5
7
NULL
+V
OUTPUT
NC
14
8
S
13
12
11
10
9
NC
NC
NC
V–
NC
Fax: 617/326-8703

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AD848AQ Summary of contents

Page 1

FEATURES 725 MHz Gain Bandwidth – AD849 175 MHz Gain Bandwidth – AD848 4.8 mA Supply Current 300 V/ s Slew Rate 80 ns Settling Time to 0.1% for Step – AD849 Differential Gain: AD848 = ...

Page 2

AD848/AD849–SPECIFICATIONS Model Conditions 1 INPUT OFFSET VOLTAGE T Offset Drift INPUT BIAS CURRENT T INPUT OFFSET CURRENT T Offset Current Drift OPEN LOOP GAIN DYNAMIC PERFORMANCE Gain Bandwidth A 2 Full Power Bandwidth ...

Page 3

Model Conditions 1 INPUT OFFSET VOLTAGE T Offset Drift INPUT BIAS CURRENT T INPUT OFFSET CURRENT T Offset Current Drift OPEN LOOP GAIN DYNAMIC PERFORMANCE Gain Bandwidth A 2 Full Power Bandwidth V ...

Page 4

... JA Mini-DIP Package: = 110 C/Watt JA Cerdip Package: = 110 C/Watt JA Small Outline Package: = 155 C/Watt. JA Model AD848JN 2 AD848JR AD848JCHIPS AD848AQ AD848SQ AD848SQ/883B AD848SE/883B AD849JN 2 AD849JR AD849AQ AD849SQ AD849SQ/883B AD847J/A/S NOTES LCC Plastic DIP Cerdip Small Outline IC (SOIC). 2 Plastic SOIC (R) available in tape and reel. AD848 available in S grade chips. AD849 available in J and S grade chips ...

Page 5

Figure 1. AD848 Inverting Amplifier Configuration Figure 1a. AD848 Large Signal Pulse Response Figure 1b. AD848 Small Signal Pulse Response OFFSET NULLING The input voltage of the AD848 and AD849 are very low for high speed op amps, but if ...

Page 6

AD848/AD849–Typical Characteristics Figure 4. Quiescent Current vs. Supply Voltage (AD848 and AD849) Figure 7. Open Loop Gain vs. Load Resistance (AD848) Figure 10. Quiescent Current vs. Temperature (AD848 and AD849 +25 C and ...

Page 7

Figure 13. Open Loop Gain and Phase Margin vs. Frequency (AD848) Figure 16. Harmonic Distortion vs. Frequency (AD848) Figure 19. Power Supply Rejection vs. Frequency (AD848) REV. B Figure 14. Open Loop Gain and Phase Margin vs. Frequency (AD849) Figure ...

Page 8

AD848/AD849 AD848/AD849–Applications GROUNDING AND BYPASSING In designing practical circuits with the AD848 or AD849, the user must remember that whenever high frequencies are involved, some special precautions are in order. Circuits must be built with short interconnect leads. A large ...

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