OP183GSZ-REEL [ADI]
5 MHz Single-Supply Operational Amplifier; 5 MHz的单电源运算放大器
| 型号： | OP183GSZ-REEL |
| 厂家： | 
ADI |
| 描述： | 5 MHz Single-Supply Operational Amplifier |
| 文件： | 总16页 (文件大小：345K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
5 MHz Single-Supply
Operational Amplifier
OP183
FEATURES
PIN CONNECTION
Single supply: 3 V to 36 V
Wide bandwidth: 5 MHz
Low offset voltage: 1 mV
High slew rate: 10 V/μs
Low noise: 10 nV/√Hz
Unity gain stable
Input and output range includes GND
No phase reversal
1
2
3
4
8
7
6
5
NULL
–IN
NC
OP183
V+
+IN
OUT
NULL
TOP VIEW
(Not to Scale)
V–
Figure 1. 8-Lead Narrow Body SOIC
(S Suffix)
APPLICATIONS
Multimedia
Telecom
ADC buffers
Wide band filters
Microphone preamplifiers
GENERAL DESCRIPTION
The OP183 is a single-supply, 5 MHz bandwidth amplifier with
slew rates of 10 V/μs. It can operate from voltages as low as 3 V
and up to 36 V. This combination of slew rate and bandwidth
yields excellent single-supply ac performance, making this
amplifier ideally suited for telecom and multimedia audio
applications.
The OP183 also provides good dc performance with guaranteed
1 mV offset. Noise is a respectable 10 nV/√Hz. Supply current is
only 1.2 mA per amplifier.
This amplifier is well suited for single-supply applications that
require moderate bandwidth even when used in high gain
configurations. This makes it useful in filters and instrumenta-
tion. The output drive capability and very wide full-power
bandwidth of the OP183 make it a good choice for multimedia
headphone drivers or microphone input amplifiers.
The OP183 is available in a SO-8 surface-mount package. It is
specified over the extended industrial (−40°C to +85°C)
temperature range.
Rev. D
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.
Specifications subject to change without notice. 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 owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2005 Analog Devices, Inc. All rights reserved.
OP183
TABLE OF CONTENTS
Specifications..................................................................................... 3
Direct Access Arrangement ...................................................... 13
5 V Only Stereo DAC for Multimedia..................................... 13
Low Voltage Headphone Amplifiers........................................ 14
Low Noise Microphone Amplifier for Multimedia ............... 14
3 V 50 Hz/60 Hz Active Notch Filter with False Ground ..... 14
Electrical Characteristics @ VS = 5 V......................................... 3
Electrical Characteristics @ VS = 3 V......................................... 4
Electrical Characteristics @ VS = 15 V.................................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Typical Performance Characteristics ............................................. 7
Applications..................................................................................... 13
Offset Adjust ............................................................................... 13
Phase Reversal............................................................................. 13
Low Voltage Frequency Synthesizer for Wireless
Transceiver .................................................................................. 15
Outline Dimensions....................................................................... 16
Ordering Guide .......................................................................... 16
REVISION HISTORY
5/05—Rev. C to Rev. D
Revision 0: Initial Version
Updated Format.................................................................. Universal
Removed OP283 ................................................................. Universal
Updated Outline Dimensions........................................................16
Changes to Ordering Guide ...........................................................16
2/02—Rev. B to Rev. C
Edits to FEATURES...........................................................................1
Edits to GENERAL DESCRIPTION...............................................1
Edits to SPECIFICATIONS......................................................... 2–3
Edits to Package Type........................................................................4
Edits to ORDERING GUIDE...........................................................4
Edits to ABSOLUTE MAXIMUM RATINGS ...............................4
Edits to OUTLINE DIMENSIONS...............................................12
Rev. D | Page 2 of 16
OP183
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS @ VS = 5 V
TA = 25°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
IB
VCM = 2.5 V, VOUT = 2.5 V,
−40°C ≤ TA ≤ +85°C
VCM = 2.5 V, VOUT = 2.5 V,
−40°C ≤ TA ≤ +85°C
VCM = 2.5 V, VOUT = 2.5 V,
−40°C ≤ TA ≤ +85°C
0.025
1.0
mV
mV
nA
nA
nA
nA
V
1.25
600
750
Input Bias Current
350
430
Input Offset Current
IOS
11
50
3.5
Input Voltage Range
0
Common-Mode Rejection Ratio
CMRR
VCM = 0 to 3.5 V
70
104
dB
−40°C ≤ TA ≤ +85°C
RL = 2 kΩ, 0.2 ≤ VO ≤ 3.8 V
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
AVO
ΔVOS/ΔT
ΔIB/ΔT
100
V/mV
μV/°C
nA/°C
4
−1.6
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Limit
VOH
VOL
ISC
RL = 2 kΩ to GND
RL = 2 kΩ to GND
Source
4.0
4.22
50
25
V
75
mV
mA
mA
Sink
30
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
ISY
VS = 4 V to 6 V,
−40°C ≤ TA ≤ +85°C
VO = 2.5 V,
70
104
1.2
dB
Supply Current/Amplifier
−40°C ≤ TA ≤ +85°C
1.5
18
mA
V
Supply Voltage Range
VS
3
5
DYNAMIC PERFORMANCE
Slew Rate
SR
RL = 2 kΩ
10
>50
1.5
5
V/μs
kHz
Full Power Bandwidth
Settling Time
BWp
tS
1% Distortion
To 0.01%
μs
Gain Bandwidth Product
Phase Margin
GBP
фm
MHz
Degrees
46
NOISE PERFORMANCE
Voltage Noise
en p-p
0.1 Hz to 10 Hz
2
μV p-p
nV/√Hz
pA/√Hz
Voltage Noise Density
Current Noise Density
en
in
f = 1 kHz, VCM = 2.5 V
10
0.4
Rev. D | Page 3 of 16
OP183
ELECTRICAL CHARACTERISTICS @ VS = 3 V
TA = 25°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ
0.3
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
IB
VCM = 1.5 V, VOUT = 1.5 V,
−40°C ≤ TA ≤ +85°C
VCM = 1.5 V, VOUT = 1.5 V,
−40°C ≤ TA ≤ +85°C
VCM = 1.5 V, VOUT = 1.5 V,
−40°C ≤ TA ≤ +85°C
1.0
mV
mV
nA
nA
nA
nA
V
1.25
600
750
Input Bias Current
350
Input Offset Current
IOS
11
50
1.5
Input Voltage Range
0
Common-Mode Rejection Ratio
CMRR
AVO
VCM = 0 V to 1.5 V,
−40°C ≤ TA ≤ +85°C
RL = 2 kΩ, 0.2 ≤ VO ≤ 1.8 V
70
100
103
260
dB
V/mV
Large Signal Voltage Gain
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
VOL
ISC
RL = 2 kΩ to GND
RL = 2 kΩ to GND
Source
2.0
2.25
90
V
Output Voltage Low
125
mV
mA
mA
Short-Circuit Limit
25
Sink
30
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
ISY
VS = 2.5 V to 3.5 V,
−40°C ≤ TA ≤ +85°C
60
113
1.2
dB
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Gain Bandwidth Product
NOISE PERFORMANCE
−40°C ≤ TA ≤ +85°C, VO = 1.5 V
1.5
mA
GBP
en
5
MHz
Voltage Noise Density
f = 1 kHz, VCM = 1.5 V
10
nV/√Hz
Rev. D | Page 4 of 16
OP183
ELECTRICAL CHARACTERISTICS @ VS = 15 V
TA = 25°C, unless otherwise noted.
Table 3.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
0.01
1.0
mV
mV
nA
nA
nA
V
−40°C ≤ TA ≤ +85°C
1.25
600
750
50
Input Bias Current
IB
300
400
11
−40°C ≤ TA ≤ +85°C
−40 ≤ TA ≤ +85°C
Input Offset Current
Input Voltage Range
IOS
−15
+13.5
Common-Mode Rejection Ratio
CMRR
VCM = −15 V to +13.5 V,
–40°C ≤ TA ≤ +85°C
RL = 2 kΩ
70
86
dB
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
Long-Term Offset Voltage
OUTPUT CHARACTERISTICS
AVO
100
1000
3
−1.6
V/mV
μV/°C
nA/°C
mV
ΔVOS/ΔT
ΔIB/ΔT
VOS
Note1
1.5
Output Voltage High
Output Voltage Low
Short-Circuit Limit
VOH
VOL
ISC
13.9
14.1
−14.05
30
V
RL = 2 kΩ to GND, −40°C ≤ TA ≤ +85°C
RL = 2 kΩ to GND, −40°C ≤ TA ≤ +85°C
Source
−13.9
V
mA
mA
Ω
Sink
50
Open-Loop Output Impedance
POWER SUPPLY
ZOUT
PSRR
ISY
f = 1 MHz, AV = +1
15
Power Supply Rejection Ratio
VS = 2.5 V to 18 V,
−40°C ≤ TA ≤ +85°C
VS = 18 V, VO = 0 V,
−40°C ≤ TA ≤ +85°C
70
112
1.2
dB
Supply Current/Amplifier
1.75
18
mA
V
Supply Voltage Range
DYNAMIC PERFORMANCE
Slew Rate
VS
3
SR
RL = 2 kΩ
10
15
50
1.5
5
V/μs
kHz
Full Power Bandwidth
Settling Time
BWp
tS
1% Distortion
To 0.01%
μs
Gain Bandwidth Product
Phase Margin
GBP
фm
MHz
Degrees
56
NOISE PERFORMANCE
Voltage Noise
en p-p
0.1 Hz to 10 Hz
f = 1 kHz
2
μV p-p
nV/√Hz
pA/√Hz
Voltage Noise Density
Current Noise Density
en
in
10
0.4
1 Long-term offset voltage is guaranteed by a 1,000 hour life test performed on three independent lots at 125°C, with an LTPD of 1.3.
Rev. D | Page 5 of 16
OP183
ABSOLUTE MAXIMUM RATINGS
Table 4.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; 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.
Parameter
Rating
Supply Voltage
Input Voltage
18 V
18 V
7 V
Differential Input Voltage1
Output Short-Circuit Duration to GND
Storage Temperature Range
Indefinite
S Package
Operating Temperature Range
−65°C to +150°C
−40°C to +85°C
Absolute maximum ratings apply to packaged parts, unless
otherwise noted.
OP183
Table 5.
Package Type
Junction Temperature Range
1
θJA
θJC
Units
S Package
−65°C to +150°C
300°C
8-Lead SOIC (S)
158
43
°C/W
Lead Temperature Range (Soldering 60 sec)
1 θJA is specified for worst-case conditions; in other words, θJA is specified for
device soldered in circuit board for SOIC packages.
1 For supply voltages less than 7 V, the absolute maximum input voltage is
equal to the supply voltage. Maximum input current should not exceed
2 mA.
ESD 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 this product 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.
Rev. D | Page 6 of 16
OP183
TYPICAL PERFORMANCE CHARACTERISTICS
160
140
80
–40°C = T +85°C
A
300X OP AMPS
PLASTIC PACKAGE
V
= 5V
S
70
60
50
300X
OP AMPS
120
100
80
40
30
20
60
40
20
0
10
0
–600
–400
–200
0
200
400
600
0
2
4
6
8
10
12
TCV (μV/°C)
INPUT OFFSET VOLTAGE (μV)
OS
Figure 5. OP183 Input Offset Voltage Drift (TCVOS) Distribution @ 15 V
Figure 2. OP183 Input Offset Voltage Distribution @ 5 V
80
70
60
50
3
T
R
V
= 25°C
= 2kΩ
= 3V
V
300X
OP AMPS
= 5V
A
S
L
S
2
1
0
40
30
20
10
0
–600
–400
–200
0
200
400
600
1k
10k
100k
1M
10M
INPUT OFFSET VOLTAGE (μV)
FREQUENCY (Hz)
Figure 3. OP183 Input Offset Voltage Distribution @ 15 V
Figure 6. OP183 Maximum Output Swing vs. Frequency @ 3 V
160
5
–40°C = T +85°C
A
300X OP AMPS
PLASTIC PACKAGE
T
R
V
= 25°C
= 2kΩ
= 5V
A
140
L
S
4
3
2
1
0
120
100
80
60
40
20
0
1k
10k
100k
1M
10M
0
2
4
6
8
10
12
TCV (μV/°C)
FREQUENCY (Hz)
OS
Figure 7. OP183 Maximum Output Swing vs. Frequency @ 5 V
Figure 4. OP183 Input Offset Voltage Drift (TCVOS) Distribution @ 5 V
Rev. D | Page 7 of 16
OP183
30
25
20
15
10
500
T
R
V
= 25°C
= 2kΩ
= 15V
A
L
S
V
V
= ±15V,
= +5V
S
S
400
300
200
V
= +3V
S
100
0
5
0
1k
10k
100k
1M
10M
–75
–50
–25
0
25
50
75
100
125
FREQUENCY (Hz)
TEMPERATURE (°C)
Figure 8. OP183 Maximum Output Swing vs. Frequency @ 15 V
Figure 11. Input Bias Current vs. Temperature
1
1.50
1.25
1.00
V
R
= ±18V
S
=
∞
L
SINK
100m
V
R
= +3V
V
R
= +5V
S
S
0.75
0.50
0.25
0
=
∞
=
∞
L
L
SOURCE
10m
1m
1μ
10μ
100μ
1m
10m
–75
–50
–25
0
25
50
75
100
125
LOAD CURRENT (A)
TEMPERATURE (°C)
Figure 12. Supply Current per Amplifier vs. Temperature
Figure 9. Output Voltage vs. Sink & Source Current
600
500
400
1.50
1.25
1.00
T
= 25°C
A
T
V
= 25°C
= ±15V
A
S
300
200
100
0
0.75
0.50
0.25
0
–15
–10
–5
0
5
10
13.5
0
±2.5
±5.0
±7.5
±10.0 ±12.5 ±15.0 ±17.5 ±20.0
COMMON MODE VOLTAGE (V)
SUPPLY VOLTAGE (V)
Figure 10. Input Bias Current vs. Common-Mode Voltage
Figure 13. Supply Current per Amplifier vs. Supply Voltage
Rev. D | Page 8 of 16
OP183
60
50
40
140
120
100
80
T
V
= 25°C
= ±15V
A
S
+PSRR
–PSRR
–1
SC
30
20
10
0
60
40
+1
SC
20
0
–75
–50
–25
0
25
50
75
100
125
125
1M
100
1k
10k
FREQUENCY (Hz)
100k
1M
TEMPERATURE (°C)
Figure 14. Short-Circuit Current vs. Temperature @ 5 V
Figure 17. Power Supply Rejection vs. Frequency
60
50
40
90
80
T
V
= 25°C
= 3V
A
–1
SC
S
R
= 10kΩ
L
70
60
50
GAIN
+1
SC
30
20
10
0
40
30
20
10
0
195
PHASE
MARGIN
= 43°
PHASE
90
45
0
–45
10M
–10
–75
–50
–25
0
25
50
75
100
1k
10k
100k
FREQUENCY (Hz)
1M
TEMPERATURE (°C)
Figure 15. Short-Circuit Current vs. Temperature @ 15 V
Figure 18. Open-Loop Gain and Phase vs. Frequency @ 3 V
140
120
100
80
90
80
T
= 25°C
V = 5V
S
T
V
= 25°C
= ±15V
A
A
S
R
= 10kΩ
L
70
60
50
GAIN
40
30
20
10
0
60
40
195
90
PHASE
MARGIN
= 46°
PHASE
45
20
0
0
–45
10M
–10
100
1k
10k
100k
1k
10k
100k
FREQUENCY (Hz)
1M
FREQUENCY (Hz)
Figure 16. Common-Mode Rejection vs. Frequency
Figure 19. Open-Loop Gain and Phase vs. Frequency @ 5 V
Rev. D | Page 9 of 16
OP183
90
80
25
T
V
R
= 25°C
= ±15V
= 10kΩ
A
S
L
70
60
50
20
15
10
5
V
R
= ±15V
= 2kΩ
GAIN
S
L
±SLEW RATE
40
30
20
10
0
195
90
PHASE
MARGIN
= 56°
V
R
= ±15V
= 2kΩ
PHASE
S
L
±SLEW RATE
45
0
–45
–10
1k
0
10k
100k
FREQUENCY (Hz)
1M
10M
–75
–50
–25
0
25
50
75
100
125
10k
10k
TEMPERATURE (°C)
Figure 20. Open-Loop Gain and Phase vs. Frequency @ 15 V
Figure 23. Slew Rate vs. Temperature
1000
30
25
T
= +25°C
= ±15V
OR
A
900
V
S
800
700
V
= +3V, +15V
S
20
15
10
5
V
= +5V
S
600
500
R
= 2kΩ
L
400
300
200
100
0
V
V
= ±15V
OR
= +3V
= 2kΩ
S
S
R
L
0
–75
–50
–25
0
25
50
75
100
125
10
100
FREQUENCY (Hz)
1k
TEMPERATURE (°C)
Figure 21. Open-Loop Gain vs. Temperature
Figure 24. Voltage Noise Density vs. Frequency
50
40
30
20
6
5
T
= 25°C
= ±15V
OR
A
T
V
= 25°C
= ±15V
A
A
= 100
= 10
= 1
V
V
S
S
V
= +3V, +15V
S
4
3
2
1
A
V
10
0
A
V
–10
–20
0
1k
10k
100k
FREQUENCY (Hz)
1M
10M
10
100
FREQUENCY (Hz)
1k
Figure 22. Closed-Loop Gain vs. Frequency
Figure 25. Current Noise Density vs. Frequency
Rev. D | Page 10 of 16
OP183
100
90
T
V
= 25°C
= ±15V
A
S
80
70
60
50
40
30
20
10
0
AV = 10
AV = 1
100
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 29. Small Signal Performance @ 15 V
Figure 26. Closed-Loop Output Impedance vs. Frequency
80
70
60
50
T
V
R
= 25°C
= 5V
= 10kΩ
A
S
L
NEGATIVE
EDGE
40
30
20
POSITIVE
EDGE
10
0
0
100
200
300
CAPACITANCE (pF)
Figure 30. 0.1 Hz to 10 Hz Noise @ 2.5 V
Figure 27. Small Signal Overshoot vs. Load Capacitance
Figure 28. Large Signal Performance @ 15 V
Figure 31. 0.1 Hz to 10 Hz Noise @ 15 V
Rev. D | Page 11 of 16
OP183
Preliminary Technical Data
0.1
OP183
2.5V
V
= ±
S
600
Ω
A
R
= +1
= 0
V
F
V
= 1V
RMS
1kΩ
IN
80kHz LOW-PASS FILTER
2k
Ω
0.010
5k
Ω
10Ω
NO
LOAD
0.001
0.0005
20
100
1k
FREQUENCY (Hz)
10k 20k
Figure 32. THD + Noise vs. Frequency for Various Loads
Rev. D | Page 12 of 16
OP183
APPLICATIONS
OFFSET ADJUST
This arrangement drives the transformer differentially so that
the drive to the transformer is effectively doubled over a single
amplifier arrangement. This application takes advantage of the
ability of the OP183 to drive capacitive loads and to save power
in single-supply applications.
Figure 33 shows how the offset voltage of the OP183 can be
adjusted by connecting a potentiometer between Pins 1 and 5,
and connecting the wiper to VEE. The recommended value for
the potentiometer is 10 kΩ. This will give an adjustment range
of approximately 1 mV. If a larger adjustment span is desired, a
50 kΩ potentiometer will yield a range of 2.5 mV.
300pF
37.4kΩ
V
CC
20kΩ
0.1μF
A1
7
OP183
RxA
3
2
6
V
OS
OP183
0.0047μF
20kΩ
475Ω
4
5
V
EE
1
3.3kΩ
A2
OP183
22.1kΩ
0.1μF
20kΩ
0.33μF
TxA
Figure 33. OP183 Offset Adjust
750pF
20kΩ
20kΩ
PHASE REVERSAL
A3
The OP183 is protected against phase reversal as long as both of
the inputs are within the range of the positive supply and the
negative supply −0.6 V. If there is a possibility of either input
going beyond these limits, however, the inputs should be
protected with a series resistor to limit input current to 2 mA.
OP183
REF
2.5V
Figure 34. Direct Access Arrangement
5 V ONLY STEREO DAC FOR MULTIMEDIA
DIRECT ACCESS ARRANGEMENT
The low noise and single-supply capability of the OP183 are
ideally suited for stereo DAC audio reproduction or sound
synthesis applications, such as multimedia systems. Figure 35
shows an 18-bit stereo DAC output setup that is powered from a
single 5 V supply. The low noise preserves the 18-bit dynamic
range of the AD1868.
The OP183 can be used in a single supply direct access
arrangement (DAA) as shown in Figure 34. This figure shows a
portion of a typical DAA capable of operating from a single 5 V
supply; with minor modifications it should also work on 3 V
supplies. Amplifiers A2 and A3 are configured so that the
transmit signal TxA is inverted by A2 and not inverted by A3.
AD1868
VBL
V
1
2
3
4
5
6
7
8
16
15
14
13
L
8
16-BIT
DAC
3
LL
220μF
LEFT
CHANNEL
OUTPUT
+
–
1
OP183
9.76kΩ
7.68kΩ
DL
CK
DR
LR
18-BIT
SERIAL
REG.
47kΩ
2
4
VOL
330pF
100pF
V
V
REF
REF
AGND 12
11
7.68kΩ
7.68kΩ
18-BIT
SERIAL
REG.
VOR
10
DGND
VBR
16-BIT
DAC
100pF
7
V
9
9.76kΩ
S
7.68kΩ
6
5
220μF
RIGHT
CHANNEL
OUTPUT
330pF
+
–
OP183
47kΩ
Figure 35. 5 V Only 18-Bit Stereo DAC
Rev. D | Page 13 of 16
OP183
3 V 50 HZ/60 HZ ACTIVE NOTCH FILTER WITH
FALSE GROUND
LOW VOLTAGE HEADPHONE AMPLIFIERS
Figure 36 shows a stereo headphone output amplifier for the
AD1849 16-bit SoundPort® Stereo Codec device. The
pseudoreference voltage is derived from the common-mode
voltage generated internally by the AD1849, thus providing a
convenient bias for the headphone output amplifiers.
To process ac signals, it may be easier to use a false-ground bias
rather than the negative supply as a reference ground. This
would reject the power line frequency interference which can
often obscure low frequency physiological signals, such as heart
rates, blood pressures, EEGs, and ECGs.
OPTIONAL
GAIN
5kΩ
Figure 38 shows a 50 Hz/60 Hz active notch filter for
eliminating line noise in patient monitoring equipment. It has
several kilohertz bandwidth and is not sensitive to false-ground
perturbations. The simple false-ground circuit shown achieves
good rejection of low frequency interference using standard off-
the-shelf components.
1kΩ
V
REF
5V
10μF
220μF
47kΩ
16Ω
21
LOUT1L
HEADPHONE
LEFT
L VOLUME
CONTROL
OP183
10kΩ
AD1849
5V
R2
2.67kΩ
OP183
3V
R1
V
REF
2.67kΩ
C1
1μF
C2
1μF
2
3
4
OP183
CMOUT 19
1
6
8
A1
10kΩ
10μF
R3
2.67kΩ
R4
2.67kΩ
5
7
220μF
47kΩ
V
V
O
A2
IN
16Ω
HEADPHONE
RIGHT
R VOLUME
CONTROL
OP183
5kΩ
20
LOUT1R
R6
10kΩ
R7
C3
1μF
(1μF × 2)
R5
1kΩ
OP183
1.33kΩ
(2.67kΩ ÷ 2)
R8
1kΩ
OPTIONAL
GAIN
1kΩ
R11
10kΩ
Q = 0.75
NOTE:
V
REF
FOR 50Hz APPLICATIONS
CHANGE R1–R4 TO 3.1Ω
AND R5 TO 1.58Ω (3.16Ω ÷ 2).
Figure 36. Headphone Output Amplifier for Multimedia Sound Codec
C5
0.015μF
3V
R9
R12
70Ω
3
LOW NOISE MICROPHONE AMPLIFIER FOR
MULTIMEDIA
0.75V
1
A3
75kΩ
C6
1μF
4
C4
1μF
R10
25kΩ
OP183
The OP183 is ideally suited as a low noise microphone preamp
for low voltage audio applications. Figure 37 shows a gain of 100
stereo preamp for the AD1849 16-bit SoundPort Stereo Codec
chip. The common-mode output buffer serves as a phantom
power driver for the microphones.
Figure 38. 3 V Supply 50 Hz/60 Hz Notch Filter with Pseudo Ground
Amplifier A3 biases A1 and A2 to the middle of their input
common-mode range. When operating on a 3 V supply, the
center of the common-mode range of the OP183 is 0.75 V. This
notch filter effectively squelches 60 Hz pickup at a filter Q of
0.75. To reject 50 Hz interference, change the resistors in the
twin-T section (R1 through R5) from 2.67 kΩ to 3.16 kΩ.
10kΩ
5V
17
MINL
OP183
10μF
LEFT
ELECTRET
CONDENSER
MIC
50Ω
10kΩ
20Ω
100Ω
AD1849
INPUT
The filter section uses OP183 op amps in a twin-T
5V
configuration whose frequency selectivity is very sensitive to
the relative matching of the capacitors and resistors in the twin-
T section. Mylar is the material of choice for the capacitors, and
the relative matching of the capacitors and resistors determines
the filter’s pass-band symmetry. Using 1% resistors and 5%
capacitors produces satisfactory results.
19 CMOUT
1/2
OP219
100Ω
20Ω
10μF
10kΩ
RIGHT
ELECTRET
CONDENSER
MIC
50Ω
18
MINR
OP183
INPUT
10kΩ
Figure 37. Low Noise Stereo Microphone Amplifier for
Multimedia Sound Codec
Rev. D | Page 14 of 16
OP183
LOW VOLTAGE FREQUENCY SYNTHESIZER FOR
WIRELESS TRANSCEIVER
3V
CRYSTAL
OP183
The low noise and low voltage operation capability of the
OP183 serves well for the loop filter of a frequency synthesizer.
REFERENCE
OSCILLATOR
PHASE
DETECTOR
Figure 39 shows a typical application in a radio transceiver. The
phase noise performance of the synthesizer depends on low
noise contribution from each component in the loop as the
noise is amplified by the frequency division factor of the
prescaler.
V
CONTROL
VCO
÷
RF
OUT
PRESCALER
900MHz
Figure 39. Low Voltage Frequency Synthesizer for a Wireless Transceiver
The resistors used in the low-pass filter should be of low to
moderate values to reduce noise contribution due to the input
bias current as well as the resistors themselves. The filter cutoff
frequency should be chosen to optimize the loop constant.
7
QB9
RB4
QB6
RB5
QB7
RB6
QB10
QB11
R9
RB3
Q7
Q5
Q8
Q6
QB8
Q12
QD2
R1
Q1
R2
Q2
CC2
JB1
3
2
QD1
CC3
Z1
R8
6
CF1
Q4
R5
QB5A
Q3
QD3
CB1
CO
R7
QB4
A
QB3
QB1
5
1
B
Q11
R10
R3A
R4A
R11
Q10
QB13
QB2
QB14
CC1
R4B
QB12
R3AT
R3B
R4AT
R4LT
R3LT
RB2
RB1
4
Figure 40. OP183 Simplified Schematic
Rev. D | Page 15 of 16
OP183
OUTLINE DIMENSIONS
5.00 (0.1968)
4.80 (0.1890)
8
1
5
4
6.20 (0.2440)
5.80 (0.2284)
4.00 (0.1574)
3.80 (0.1497)
1.27 (0.0500)
BSC
0.50 (0.0196)
0.25 (0.0099)
× 45°
1.75 (0.0688)
1.35 (0.0532)
0.25 (0.0098)
0.10 (0.0040)
8°
0.51 (0.0201)
0.31 (0.0122)
0° 1.27 (0.0500)
COPLANARITY
0.10
0.25 (0.0098)
0.17 (0.0067)
SEATING
PLANE
0.40 (0.0157)
COMPLIANT TO JEDEC STANDARDS MS-012-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN
Figure 41. 8-Lead Standard Small Outline Package [SOIC_N]
Narrow Body
(R-8)
S-Suffix
Dimensions shown in millimeters and (inches)
ORDERING GUIDE
Model
OP183GS
OP183GS-REEL
OP183GS-REEL7
OP183GSZ1
OP183GSZ-REEL1
OP183GSZ-REEL71
Temperature Range
−40°C to +85°C
Package Description
Package Option
S-Suffix (R-8)
S-Suffix (R-8)
S-Suffix (R-8)
S-Suffix (R-8)
S-Suffix (R-8)
S-Suffix (R-8)
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
8-Lead SOIC_N
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
1Z = Pb free part.
©2005 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
C00292-0-5/05(D)
Rev. D | Page 16 of 16
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