AD824AR-14 Analog Devices Inc, AD824AR-14 Datasheet

IC OPAMP JFET R-R 2MHZ LP 14SOIC

AD824AR-14

Manufacturer Part Number
AD824AR-14
Description
IC OPAMP JFET R-R 2MHZ LP 14SOIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD824AR-14

Slew Rate
2 V/µs
Rohs Status
RoHS non-compliant
Amplifier Type
J-FET
Number Of Circuits
4
Output Type
Rail-to-Rail
Gain Bandwidth Product
2MHz
-3db Bandwidth
2MHz
Current - Input Bias
4pA
Voltage - Input Offset
500µV
Current - Supply
560µA
Current - Output / Channel
12mA
Voltage - Supply, Single/dual (±)
3 V ~ 30 V, ±1.5 V ~ 15 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (3.9mm Width), 14-SOL
Op Amp Type
Low Power
No. Of Amplifiers
4
Bandwidth
2MHz
Supply Voltage Range
3V To 30V
Amplifier Case Style
SOIC
No. Of Pins
14
Operating Temperature Range
-40°C To +85°C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD824AR-14
Manufacturer:
AD
Quantity:
16
Part Number:
AD824AR-14-REEL
Manufacturer:
AD
Quantity:
1 240
REV. C
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
GENERAL DESCRIPTION
The AD824 is a quad, FET input, single supply amplifier, fea-
turing rail-to-rail outputs. The combination of FET inputs and
rail-to-rail outputs makes the AD824 useful in a wide variety of
low voltage applications where low input current is a primary
consideration.
The AD824 is guaranteed to operate from a 3 V single supply
up to ± 15 V dual supplies. AD824AR-3V Parametric Perfor-
mance at 3 V is fully guaranteed.
Fabricated on ADI’s complementary bipolar process, the AD824
has a unique input stage that allows the input voltage to safely
extend beyond the negative supply and to the positive supply
without any phase inversion or latchup. The output voltage
swings to within 15 mV of the supplies. Capacitive loads to
350 pF can be handled without oscillation.
FEATURES
Single Supply Operation: 3 V to 30 V
Very Low Input Bias Current: 2 pA
Wide Input Voltage Range
Rail-to-Rail Output Swing
Low Supply Current: 500 A/Amp
Wide Bandwidth: 2 MHz
Slew Rate: 2 V/ s
No Phase Reversal
APPLICATIONS
Photo Diode Preamplifier
Battery Powered Instrumentation
Power Supply Control and Protection
Medical Instrumentation
Remote Sensors
Low Voltage Strain Gage Amplifiers
DAC Output Amplifier
The FET input combined with laser trimming provides an input
that has extremely low bias currents with guaranteed offsets
below 1 mV. This enables high accuracy designs even with
high source impedances. Precision is combined with low
noise, making the AD824 ideal for use in battery powered
medical equipment.
Applications for the AD824 include portable medical equipment,
photo diode preamplifiers and high impedance transducer
amplifiers.
The ability of the output to swing rail-to-rail enables designers
to build multistage filters in single supply systems and maintain
high signal-to-noise ratios.
The AD824 is specified over the extended industrial (–40∞C to
+85∞C) temperature range and is available in narrow 14-lead
and 16-lead SOIC packages.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
OUT A
OUT B
+IN A
+IN B
–IN A
–IN B
Low Power, FET-Input Op Amp
V+
14-Lead Epoxy SOIC
1
2
3
4
5
6
7
(R Suffix)
Single Supply, Rail-to-Rail
(Not to Scale)
TOP VIEW
AD824
PIN CONFIGURATIONS
© 2003 Analog Devices, Inc. All rights reserved.
14
13
12
11
10
9
8
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
OUT A
OUT B
–IN A
+IN A
+IN B
–IN B
16-Lead Epoxy SOIC
NC
V+
NC = NO CONNECT
1
2
3
4
5
6
7
8
(R Suffix)
AD824
AD824
www.analog.com
16
15
14
13
12
11
10
9
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
NC

Related parts for AD824AR-14

AD824AR-14 Summary of contents

Page 1

... The AD824 is guaranteed to operate from single supply up to ± dual supplies. AD824AR-3V Parametric Perfor- mance fully guaranteed. Fabricated on ADI’s complementary bipolar process, the AD824 has a unique input stage that allows the input voltage to safely extend beyond the negative supply and to the positive supply without any phase inversion or latchup ...

Page 2

AD824–SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage AD824A Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Input Impedance Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit ...

Page 3

ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage AD824A Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Input Impedance Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low Short Circuit Limit ...

Page 4

AD824–SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter INPUT CHARACTERISTICS Offset Voltage AD824A -3 V Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Ratio Input Impedance Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage High Output Voltage Low ...

Page 5

... Model Range Description AD824AR-14 –40∞C to +85∞C 14-Pin SOIC AD824AR-14-3V –40∞C to +85∞C 14-Pin SOIC AD824AR-16 –40∞C to +85∞C 16-Pin SOIC 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 AD824 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges ...

Page 6

AD824 –Typical Performance Characteristics 100 1k 10k 100k 100 50mV TPC 1. Open-Loop Gain/Phase and Small Signal = ± Load Response 100 ...

Page 7

TPC 5. Open-Loop Gain/Phase and Small Signal Response Load –20 1k 10k 100k 100 ...

Page 8

AD824 FREQUENCY – kHz TPC 10. Voltage Noise Density 0 0.010 0.001 0.0001 20 100 1k FREQUENCY – Hz TPC ...

Page 9

FREQUENCY – Hz TPC 16. Common-Mode Rejection vs. Frequency –40 –60 –80 –100 –120 100 1k FREQUENCY – Hz TPC 17. THD vs. Frequency rms 100 80 ...

Page 10

AD824 –80 –90 –100 –110 –120 –130 –140 10 100 1k FREQUENCY – Hz TPC 22. Crosstalk vs. Frequency 10k 1k 100 .01 10 100 1k 10k 100k FREQUENCY – Hz ...

Page 11

APPLICATION NOTES INPUT CHARACTERISTICS In the AD824, n-channel JFETs are used to provide a low offset, low noise, high impedance input stage. Minimum input common-mode voltage extends from 0.2 V below –V than +V . Driving the input voltage closer ...

Page 12

AD824 APPLICATIONS Single Supply Voltage-to-Frequency Converter The circuit shown in Figure 4 uses the AD824 to drive a low power timer, which produces a stable pulse of width t positive going output pulse is integrated by R1-C1 and used as ...

Page 13

Volt, Single Supply Stereo Headphone Driver The AD824 exhibits good current drive and THD+N perfor- mance, even single supplies kHz, total harmonic distortion plus noise (THD+N) equals –62 dB (0.079%) for a 300 mV ...

Page 14

AD824 A design consideration in sample-and-hold circuits is voltage droop at the output caused by op amp bias and switch leakage currents. By choosing a JFET op amp and a low leakage CMOS switch, this design minimizes droop rate error ...

Page 15

AD824 SPICE Macro-model 9/94, Rev ARG/ADI * * Copyright 1994 by Analog Devices, Inc Refer to “README.DOC” file for License Statement. Use of this model indicates your acceptance with the terms and provisions in the ...

Page 16

AD824 14-Lead Standard Small Outline Package [SOIC] Narrow Body (R-14) Dimensions shown in millimeters and (inches) 8.75 (0.3445) 8.55 (0.3366 4.00 (0.1575) 6.20 (0.2441) 3.80 (0.1496) 5.80 (0.2283 1.75 (0.0689) 1.27 (0.0500) BSC 1.35 (0.0531) 0.25 ...

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