AD OP283GP

a
FEATURES
Single-Supply – +3 Volts to +36 Volts
Wide Bandwidth – 5 MHz
Low Offset Voltage – <1 mV
High Slew Rate – 10 V/ms
Low Noise – 10 nV/√Hz
Unity-Gain Stable
Input and Output Range Includes GND
No Phase Reversal
APPLICATIONS
Multimedia
Telecom
ADC Buffers
Wide Band Filters
Microphone Preamplifiers
5 MHz Single-Supply
Operational Amplifiers
OP183/OP283
PIN CONNECTIONS
8-Lead Narrow-Body SO
(S Suffix)
1
8
NULL
1
OP183
8
NC
2
OP183
7
–IN
2
7
V+
3
TOP VIEW
(Not to Scale)
6
+IN
3
6
OUT
5
V–
4
5
NULL
4
NC = NO CONNECT
8-Lead Narrow-Body SO
(S Suffix)
1
GENERAL DESCRIPTION
The OP183 is a single-supply, 5 MHz bandwidth amplifier with
slew rates of 10 V/µs. The OP283 is a dual version. Both can
operate from voltages as low as 3 volts and up to 36 volts. This
combination of slew rate and bandwidth yields excellent singlesupply ac performance making them ideally suited for telecom and
multimedia audio applications.
8-Lead Epoxy DIP
(P Suffix)
8-Lead Epoxy DIP
(P Suffix)
8
OUTA
1
8
V+
2
OP283
7
–INA
2
7
OUTB
3
TOP VIEW
(Not to Scale)
6
+INA
3
6
–INB
5
V–
4
5
+INB
4
OP283
In addition to its ac characteristics, the OP183 family 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.
These amplifiers are well suited for single-supply applications that
require moderate bandwidths even when used in high gain configurations. This makes them useful in filters and instrumentation.
Their output drive capability and very wide full power bandwidth
make them a good choice for multimedia headphone drivers or
microphone input amplifiers.
The OP183 and OP283 are available in 8-pin plastic DIP and SO-8
surface mount packages. They are specified over the extended
industrial (–40°C to +85°C) temperature range.
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.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
OP183/OP283–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ V = +5.0 V, T = +258C unless otherwise noted)
S
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Conditions
VOS
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
Input Bias Current
IB
Input Offset Current
IOS
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short Circuit Limit
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
A
Min
Typ
Max
Units
0.025
1.0
1.25
600
750
mV
mV
nA
nA
nA
nA
V
350
430
11
0
CMRR
AVO
∆VOS/∆T
∆IB/∆T
VCM = 0 to 3.5 V
–40°C ≤ TA ≤ +85°C
RL = 2 kΩ, 0.2 ≤ VO ≤ 3.8 V
104
dB
V/mV
µV/°C
nA/°C
4
–1.6
VOH
VOL
ISC
RL = 2 kΩ to GND
RL = 2 kΩ to GND
Source
Sink
PSRR
VS = +4 V to +6 V,
–40°C ≤ TA ≤ +85°C
VO = 2.5 V,
–40°C ≤ TA ≤ +85°C
ISY
70
100
± 50
+3.5
Supply Voltage Range
DYNAMIC PERFORMANCE
Slew Rate
Full-Power Bandwidth
Settling Time
Gain Bandwidth Product
Phase Margin
VS
SR
BWp
tS
GBP
φm
RL = 2 kΩ
1% Distortion
To 0.01%
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
en p-p
en
in
0.1 Hz to 10 Hz
f = 1 kHz, VCM = 2.5 V
+4.0
70
4.22
50
25
30
104
1.2
+3
5
75
V
mV
mA
mA
dB
1.5
± 18
mA
V
10
>50
1.5
5
46
V/µs
kHz
µs
MHz
Degrees
2
10
0.4
µV p-p
nV/√Hz
pA/√Hz
ELECTRICAL CHARACTERISTICS (@ V = +3.0 V, T = +258C unless otherwise noted)
S
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Conditions
VOS
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
Input Bias Current
IB
Input Offset Current
IOS
Input Voltage Range
Common-Mode Rejection Ratio
A
Min
Max
Units
0.3
1.0
1.25
600
750
mV
mV
nA
nA
nA
nA
V
350
11
0
CMRR
AVO
VCM = 0 V to 1.5 V,
–40°C ≤ TA ≤ +85°C
RL = 2 kΩ, 0.2 ≤ VO ≤ 1.8 V
Large Signal Voltage Gain
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
Sink
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
VS = +2.5 V to +3.5 V,
–40°C ≤ TA ≤ +85°C
–40°C ≤ TA ≤ +85°C, VO = 1.5 V
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Gain Bandwidth Product
NOISE PERFORMANCE
Voltage Noise Density
Typ
ISY
GBP
en
f = 1 kHz, VCM = 1.5 V
–2–
70
100
103
260
+2.0
2.25
90
25
30
60
113
1.2
± 50
+1.5
dB
V/mV
125
1.5
V
mV
mA
mA
dB
mA
5
MHz
10
nV/√Hz
REV. B
OP183/OP283
ELECTRICAL CHARACTERISTICS (@ V = 615.0 V, T = +258C unless otherwise noted)
S
Parameter
Symbol
INPUT CHARACTERISTICS
Offset Voltage
VOS
Input Bias Current
IB
CMRR
Large Signal Voltage Gain
Offset Voltage Drift
Bias Current Drift
Long Term Offset Voltage
AVO
∆VOS/∆T
∆IB/∆T
VOS
POWER SUPPLY
Power Supply Rejection Ratio
IOS
Min
Typ
Max
Units
0.01
1.0
1.25
600
750
± 50
+13.5
mV
mV
nA
nA
nA
V
1.5
dB
V/mV
µV/°C
nA/°C
mV
–40°C ≤ TA ≤ +85°C
300
400
11
–15
VOH
VOL
ISC
Open -Loop Output Impedance
Conditions
–40°C ≤ TA ≤ +85°C
–40 ≤ TA ≤ +85°C
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Limit
A
ZOUT
PSRR
Supply Current/Amplifier
ISY
Supply Voltage Range
VS
VCM = –15 V to +13.5 V,
–40°C ≤ TA ≤ +85°C
RL = 2 kΩ
70
100
86
1000
3
–1.6
Note 1
RL = 2 kΩ to GND, –40°C ≤ TA ≤ +85°C
RL = 2 kΩ to GND, –40°C ≤ TA ≤ +85°C
Source
Sink
f = 1 MHz, AV = +1
VS = ± 2.5 V to ± 18 V,
–40°C ≤ TA ≤ +85°C
VS = ± 18 V, VO = 0 V,
–40°C ≤ TA ≤ +85°C
+13.9 14.1
–14.05
30
50
15
70
112
1.2
+3
DYNAMIC PERFORMANCE
Slew Rate
Full-Power Bandwidth
Settling Time
Gain Bandwidth Product
Phase Margin
SR
BWp
tS
GBP
φm
RL = 2 kΩ
1% Distortion
To 0.01%
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
en p-p
en
in
0.1 Hz to 10 Hz
f = 1 kHz
10
V
V
mA
mA
Ω
–13.9
dB
1.75
± 18
mA
V
15
50
1.5
5
56
V/µs
kHz
µs
MHz
degrees
2
10
0.4
µV p-p
nV/√Hz
pA/√Hz
NOTES
1
Long term offset voltage is guaranteed by a 1000 hour life test performed on three independent lots at +125 °C, with an LTPD of 1.3.
Specifications subject to change without notice.
WAFER TEST LIMITS
(@ VS = +5.0 V, TA = +258C unless otherwise noted)
Parameter
Symbol
Conditions
Limit
Units
Offset Voltage
Input Bias Current
Input Offset Current
Common-Mode Rejection
Power Supply Rejection Ratio
Large Signal Voltage Gain
Output Voltage High
Output Voltage Low
Supply Current/Amplifier
VOS
IB
IOS
CMRR
PSRR
AVO
VOH
VOL
ISY
VS = ± 15 V, VO = 0 V
VCM = 2.5 V
VCM = 2.5 V
VCM = 0 V to 3.5 V
V = ± 2.5 V to ± 18 V
RL = 2 kΩ, 0.2 ≤ VO ≤ 3.8 V
RL = 2 kΩ
RL = 2 kΩ
VS = ± 15 V, VO = 0 V, RL = ∞
1.0
± 600
± 50
70
70
100
4.0
75
1.5
mV max
nA max
nA max
dB min
dB min
V/mV min
V min
mV max
mA max
NOTE
Electrical tests and wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard
product dice. Consult factory to negotiate specifications based on dice lot qualifications through sample lot assembly and testing.
REV.B
–3–
OP183/OP283
ABSOLUTE MAXIMUM RATINGS 1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V
Differential Input Voltage 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 7 V
Output Short-Circuit Duration to GND . . . . . . . . . . . . Indefinite
Storage Temperature Range
P, S Package . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Operating Temperature Range
OP183/OP283G . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Junction Temperature Range
P, S Package . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 60 Sec) . . . . . . . . . . +300°C
Package Type
θJA3
θJC
Units
8-Pin Plastic DIP (P)
8-Pin SOIC (S)
103
158
43
43
°C/W
°C/W
DICE CHARACTERISTICS
V+
OUT NULL
NULL
–IN
IN+
V–
OP183 Die Size 0.058 X 0.063 Inch, 3,717 Sq. Mils
Substrate (Die Backside) Is Connected to V–.
Transistor Count, 30.
NOTES
1
Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.
2
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.
3
θJA is specified for the worst case conditions, i.e., θJA is specified for device in socket
for P-DIP packages; θJA is specified for device soldered in circuit board for SOIC
packages.
V+ OUTB
–INB +INB
ORDERING GUIDE
Model
Temperature
Range
Package
Description
Package
Option
OP183GP
OP183GS
–40°C to +85°C
–40°C to +85°C
8-Pin Plastic DIP
8-Pin SOIC
N-8
SO-8
OP283GP
OP283GS
–40°C to +85°C
–40°C to +85°C
8-Pin Plastic DIP
8-Pin SOIC
N-8
SO-8
OUTA
–INA
+INA
V–
OP283 Die Size 0.063 X 0.092 Inch, 5,796 Sq. Mils
Substrate (Die Backside) Is Connected to V–.
Transistor Count, 55.
–4–
REV. B
Typical Characteristics–OP183/OP283
80
80
VS = +5V
300X
OP AMPS
70
120
50
50
100
30
QUANTITY
60
40
40
30
40
10
10
20
0
0
+200 +400 +600
0
–600 –400 –200
INPUT OFFSET VOLTAGE – µV
+200 +400 +600
–600 –400 –200
≤–40°C ≤ TA ≤ +85°C
300X OP AMPS
PLASTIC PACKAGE
120
100
80
60
40
20
120
100
80
60
40
120
100
0
+200 +400 +600
0
4
2
INPUT OFFSET VOLTAGE – µV
6
8
10
0
12
100
80
60
MAXIMUM OUTPUT SWING – Voltsp-p
QUANTITY – Amplifiers
160
120
140
120
100
80
60
40
40
20
20
4
6
8
10
12
14
16
TCVOS – µV/°C
Figure 7. OP283 Input Offset Voltage
Drift (TCVOS) Distribution @ +5 V
REV.B
8
10
12
2
1
ΩTA = +25°C
RL = 2kΩ
VS = +3V
0
0
0
6
3
≤–40°C ≤ TA ≤ +85°C
590X OP AMPS
PLASTIC PACKAGE
180
140
2
4
Figure 6. OP183 Input Offset Voltage
Drift (TCVOS) Distribution @ ± 15 V
200
≤–40°C ≤ TA ≤ +85°C
590X OP AMPS
PLASTIC PACKAGE
0
2
TCVOS – µV/°C
Figure 5. OP183 Input Offset Voltage
Drift (TCVOS) Distribution @ +5 V
200
160
40
TCVOS – µV/°C
Figure 4. OP283 Input Offset Voltage
Distribution @ ± 15 V
180
60
0
0
–600 –400 –200
80
20
20
0
≤–40°C ≤ TA ≤ +85°C
300X OP AMPS
PLASTIC PACKAGE
140
QUANTITY – Amplifiers
QUANTITY – Amplifiers
140
+200 +400 +600
Figure 3. OP283 Input Offset Voltage
Distribution @ +5 V
160
160
VS = ±15V
590X
OP AMPS
0
INPUT OFFSET VOLTAGE – µV
Figure 2. OP183 Input Offset Voltage
Distribution @ ± 15 V
160
140
0
INPUT OFFSET VOLTAGE – µV
Figure 1. OP183 Input Offset Voltage
Distribution @ +5 V
QUANTITY
60
20
–600 –400 –200
QUANTITY – Amplifiers
80
20
0
VS = +5V
590X
OP AMPS
140
60
QUANTITY
QUANTITY
70
160
VS = ±15V
300X
OP AMPS
0
2
4
6
8
10
12
14
16
TCVOS – µV/°C
Figure 8. OP283 Input Offset Voltage
Drift (TCVOS) Distribution @ ± 15 V
–5–
1k
10k
100k
1M
10M
FREQUENCY – Hz
Figure 9. OP183/OP283 Maximum
Output Swing vs. Frequency @ +3 V
OP183/OP283–Typical Characteristics
30
4
3
2
ΩTA = +25°C
RL = 2kΩ
VS = +5V
25
20
15
10
ΩTA = +25°C
RL = 2kΩ
5
VS = ±15V
1k
10k
100k
1M
1m
1k
10M
Figure 10. OP183/OP283 Maximum
Output Swing vs. Frequency @ +5 V
1M
10M
1µ
300
200
100
–10
–5
0
5
10
VS = ±15V
&
VS = +5V
400
300
VS = +3V
200
100
0
–75 –50 –25
13.5
COMMON-MODE VOLTAGE – Volts
0
25
50
75
1.00
0.75
SHORT CIRCUIT CURRENT – mA
1.25
1.00
0.75
0.50
0
–75
100 125
0.25
0
0
±2.5
±5
±7.5 ±10 ±12.5 ±15 ±17.5 ±20
SUPPLY VOLTAGE – Volts
Figure 16. Supply Current per
Amplifier vs. Supply Voltage
0
25
50
75
100 125
Figure 15. Supply Current per
Amplifier vs. Temperature
60
–ISC
40
30
+ISC
10
0
–75
–50 –25
TEMPERATURE – °C
50
20
VS = +5V
RL = ∞
0.25
60
TA = +25°C
VS = +3V
RL = ∞
0.50
Figure 14. Input Bias Current vs.
Temperature
1.50
10m
∞VS = ±18V
RL = ∞
1.25
TEMPERATURE – °C
Figure 13. Input Bias Current vs.
Common-Mode Voltage
1m
Figure 12. Output Voltage vs. Sink
& Source Current
SUPPLY CURRENT\AMPLIFIER – mA
400
100µ
1.50
TA = +25°C
VS = ±15V
500
10µ
LOAD CURRENT – Amps
Figure 11. OP183/OP283 Maximum
Output Swing vs. Frequency @ ± 15 V
INPUT BIAS CURRENT – nA
INPUT BIAS CURRENT – nA
100k
500
600
SUPPLY CURRENT\AMPLIFIER – mA
10k
FREQUENCY – Hz
FREQUENCY – Hz
0
–15
SOURCE
10m
0
0
SINK
100m
SHORT CIRCUIT CURRENT – mA
1
1
OUTPUT VOLTAGE ∆ TO RAIL – Volts
MAXIMUM OUTPUT SWING – Volts p-p
MAXIMUM OUTPUT SWING – Volts p-p
5
–50 –25
0
25
50
75
100 125
TEMPERATURE – °C
Figure 17. Short-Circuit Current vs.
Temperature @ +5 V
–6–
50
–ISC
40
30
+ISC
20
10
0
–75
–50 –25
0
25
50
75
100 125
TEMPERATURE – °C
Figure 18. Short-Circuit Current vs.
Temperature @ ± 15 V
REV. B
OP183/OP283
80
60
40
20
120
70
100
60
+PSRR
60
–PSRR
10k
100k
100
45
0
–10
1k
1k
10k
100k
1M
1000
900
60
GAIN
90
20
PHASE
45
10
0
0
10k
100k
1M
–45
10M
50
40
PHASE
MARGIN
= 56°
30
135
90
20
PHASE
45
10
0
0
–10
1k
10k
100k
1M
–45
10M
PHASE – Degrees
135
PHASE – Degrees
PHASE
MARGIN
= 46°
30
GAIN – dB
GAIN
700
600
500
400
Figure 22. Open-Loop Gain and Phase
vs. Frequency @ +5 V
200
100
0
–75
0
AV = +1
ΩVS = ±15V
RL = 2kΩ
± SLEW RATE
15
10
ΩVS = ±5V
RL = 2kΩ
± SLEW RATE
5
–10
10M
FREQUENCY – Hz
Figure 25. Closed-Loop Gain vs.
Frequency
0
–75 –50 –25
50
75
100 125
TA = +25°C
VS = ±15V
OR
VS = +3V, +15V
Hz
AV = +10
10
VOLTAGE NOISE DENSITY – nV/
SLEW RATE – V/µs
20
25
30
20
AV = +100
30
1M
0
Figure 24. Open-Loop Gain vs.
Temperature
25
TA = +25°C
VS = ±15V
100k
–50 –25
TEMPERATURE – °C
Figure 23. Open-Loop Gain and Phase
vs. Frequency @ ± 15 V
50
10k
ΩVS = ±15V
OR
VS = +3V
RL = 2kΩ
300
FREQUENCY – Hz
FREQUENCY – Hz
40
ΩVS = +5V
RL = 2kΩ
800
OPEN-LOOP GAIN – V/mV
70
1M
Figure 21. Open-Loop Gain and Phase
vs. Frequency @ +3 V
ΩTA = +25°C
VS = ±15V
RL = 10kΩ
80
100k
–45
10M
FREQUENCY – Hz
Figure 20. Power Supply Rejection
vs. Frequency
50
40
10k
FREQUENCY – Hz
60
GAIN – dB
90
90
70
135
PHASE
0
ΩTA = +25°C
VS = +5V
RL = 10kΩ
80
CLOSED-LOOP GAIN – dB
PHASE
MARGIN
= 43°
30
20
90
REV.B
40
10
1M
Figure 19. Common-Mode Rejection
vs. Frequency
–20
1k
50
20
40
FREQUENCY – Hz
–10
1k
GAIN
80
0
1k
ΩTA = +25°C
VS = +3V
RL = 10kΩ
80
PHASE – Degrees
100
TA = +25°C
VS = ±15V
GAIN – dB
120
0
100
90
140
TA = +25°C
VS = ±15V
POWER SUPPLY REJECTION – dB
COMMON-MODE REJECTION – dB
140
25
20
15
10
5
0
0
25
50
75
100 125
TEMPERATURE – °C
Figure 26. Slew Rate vs. Temperature
–7–
10
100
1k
10k
FREQUENCY – Hz
Figure 27. Voltage Noise Density
vs. Frequency
OP183/OP283–Typical Characteristics
TA = +25°C
VS = ±15V
90
SMALL SIGNAL OVERSHOOT – %
Hz
TA = +25°C
VS = ±15V
OR
VS = +3\+5V
80
IMPEDANCE – Ω
5.0
CURRENT NOISE DENSITY – pA/
80
100
6.0
4.0
3.0
2.0
70
60
AV = +10
50
40
30
AV = +1
20
1.0
10
10
100
1k
10k
60
NEGATIVE
EDGE
50
40
30
20
POSITIVE
EDGE
10
0
0
100
0
ΩTA = +25°C
V S = ±15V
R L = 2kΩ
70
1k
10k
100k
0
1M
100
Figure 28. Current Noise Density
vs. Frequency
300
200
CAPACITANCE – pF
FREQUENCY – Hz
FREQUENCY – Hz
Figure 29. Closed-Loop Output
Impedance vs. Frequency
Figure 30. Small Signal Overshoot
vs. Load Capacitance
1S
100
100
100
90
90
90
10
10
10
0%
0%
0%
5V
1µS
Figure 31. Large Signal Performance
@ ± 15 V
50mV
5mV
200nS
Figure 32. Small Signal Performance
@ ± 15 V
Figure 33. 0.1 Hz to 10 Hz Noise
@ ± 2.5 V
OP283
V S = ±2.5V
DISTORTION – %
1S
100
90
600Ω
RF = 0
A V = +1
V IN = 1V RM S
1kΩ
80kHz LOW PASS FILTER
2kΩ
5kΩ
10Ω
10
0%
NO LOAD
5mV
FREQUENCY – Hz
Figure 34. 0.1 Hz to 10 Hz Noise
@ ± 15 V
Figure 35. THD + Noise vs. Frequency for Various Loads
–8–
REV. B
OP183/OP283
APPLICATIONS
OP183 Offset Adjust
Figure 36 shows how the OP183’s offset voltage 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 larger adjustment span is desired, a 50 kΩ potentiometer will
yield a range of ± 2.5 mV.
+5 Volt Only Stereo DAC for Multimedia
The OP283’s low noise and single supply capability are ideally
suited for stereo DAC audio reproduction or sound synthesis
applications such as multimedia systems. Figure 38 shows an 18-bit
stereo DAC output setup that is powered from a single +5 volt
supply. The low noise preserves the 18-bit dynamic range of the
AD1868. For DACs that operate on dual supplies, the OP283 can
also be powered from the same supplies.
VCC
+5V SUPPLY
7
3
1
OP183
6
VOS
VL
5
1
VBL
16
LL
18-BIT
DL SERIAL
REG.
3
VEE
VREF
Ω7.68k
Ω
14
VOL
2
100pF
AGND 12
5
DR
6
18-BIT
LR SERIAL
REG.
VREF
11
Ω7.68kΩ
VOR
10
7
DGND
8
VBR 18-BIT
DAC
100pF
Ω7.68kΩ
9
VS
6
Ω9.76kΩ
ΩOPTIONAL
GAIN
1kΩ
Ω5kΩ
V REF
+5V
10µF
LOUT1L 31
Ω16Ω
L VOLUME
CONTROL
220µF
HEADPHONE
LEFT
1/2 OP283
Ω10kΩ
Ω47kΩ
+5V
AD1849
Ω37.4kΩ
1/2 OP283
V REF
Ω20kΩ
OP283
CMOUT
0.0047µF
19
Ω20kΩ
Ω10kΩ
Ω16Ω
Ω3.3kΩ
220µF
HEADPHONE
RIGHT
1/2 OP283
A2
LOUT1R
Ω475Ω
29
10µF
OP283
Ω47kΩ
R VOLUME
CONTROL
Ω5kΩ
Ω22.1kΩ
Ω1kΩ
750pF
OPTIONAL
GAIN
V REF
0.33µF
Ω20kΩ
Ω20kΩ
Figure 39. Headphone Output Amplifier for Multimedia
Sound Codec
Ω20kΩ
A3
OP283
SoundPort is a registered trademark of Analog Devices Inc.
Figure 37. Direct Access Arrangement
REV.B
Ω47kΩ
RIGHT
CHANNEL
OUTPUT
Low Voltage Headphone Amplifiers
Figure 39 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.
300pF
2.5VREF
7
Figure 38. +5 Volt Only 18-Bit Stereo DAC
Direct Access Arrangement
The OP183/OP283 can be used in a single supply Direct Access
Arrangement (DAA) as is shown in Figure 37. This figure shows a
portion of a typical DAA capable of operating from a single +5 volt
supply and it should also work on +3 volt supplies with minor
modifications. Amplifiers A2 and A3 are configured so that the
transmit signal TXA is inverted by A2 and is not inverted by A3.
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 OP183/283’s
ability to drive capacitive loads, and to save power in single supply
applications.
TXA
220µF
1/2 OP283
5
Phase Reversal
The OP183 family is protected against phase reversal as long as
both of the inputs are within the range of the positive supply and
the negative supply minus 0.6 volts. However if there is a possibility
of either input going beyond these limits, then the inputs should be
protected with a series resistor to limit input current to 2 mA.
LEFT
CHANNEL
OUTPUT
Ω7.68kΩ
Figure 36. OP183 Offset Adjust
0.1µF
Ω47kΩ
13
330pF
RXA
4
330pF
4
A1
220µF
1
1/2 OP283
Ω9.76kΩ
CK
0.1µF
8
3
15
2
4
2
AD1868
18-BIT
DAC
–9–
OP183/OP283
Low Noise Microphone Amplifier for Multimedia
The OP183 family is ideally suited as a low noise microphone
preamp for low voltage audio applications. Figure 40 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.
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.
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 OP283’s common-mode range is 0.75 V. This notch
filter effectively squelches 60 Hz pickup at a filter Q of 0.75. To
reject 50 Hz interference, simply change the resistors in the twin-T
section (R1 through R5) from 2.67 kΩ to 3.16 kΩ.
Ω10kΩ
+5V
10µF
LEFT
ELECTRET
CONDENSER
MIC
INPUT
Ω20Ω
17 MINL
1/2 OP283
Ω50Ω
Ω10kΩ
Ω100Ω
AD1849
+5V
19 CMOUT
1/2 OP213
Ω100Ω
Ω20Ω
Ω10kΩ
10µF
Ω50Ω
15 MINR
1/2 OP283
RIGHT
ELECTRET
CONDENSER
MIC
INPUT
Ω10kΩ
The filter section uses an OP283 dual op amp in a twin-T 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.
A Low Voltage Frequency Synthesizer for Wireless
Transceiver
The OP183’s low noise and the low voltage operation capability
serves well for the loop filter of a frequency synthesizer. Figure 42
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.
Figure 40. Low Noise Stereo Microphone Amplifier for
Multimedia Sound CODEC
+3V
CRYSTAL
A +3 Volt 50 Hz/60 Hz Active Notch Filter with False Ground
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 oftentimes can
obscure low frequency physiological signals, such as heart rates,
blood pressures, EEGs, ECGs, et cetera.
OP183
REFERENCE
OSCILLATOR
PHASE
DETECTOR
÷
PRESCALER
Ω
R2
2.67kΩ
VCONTROL
RF
OUT
VCO
VARACTER
DIODE
900MHz
+3V
ΩR1
2.67kΩ
2
VIN
ΩR3
2.67kΩ
4
3
ΩR6
10kΩ
5
1
A1
2
ΩR9
75kΩ
A3
ΩR10
25kΩ
VO
ΩR8
1kΩ
ΩR7
1kΩ
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.
Ω
Q = 0.75
ΩR12
70Ω
NOTE: FOR 50Hz APPLICATIONS
CHANGE R1–R4 TO 3.1k Ω
AND R5 TO 1.58k Ω (3.16kΩ ÷ 2).
1
3
C4
1µF
7
6
Ω
R5
1.33kΩ
(2.67kΩ ÷ 2)
ΩR11
10kΩ
C5
0.015µF
A2
ΩR4
2.67kΩ
×C3
2µF
(1µF × 2)
1/2 OP283
+3V
Figure 42. A Low Voltage Frequency Synthesizer for a
Wireless Transceiver
1/2 OP283
C2
1µF
C1
1µF
8
OP183
0.75V
C6
1µF
A1, A2, AND A3 = 1/2 OP283
Figure 41. +3 Volt Supply 50 Hz/60 Hz Notch Filter with
Pseudo Ground
Figure 41 shows a 50 Hz/60 Hz active notch filter for eliminating
line noise in patient monitoring equipment. It has several kilohertz
–10–
REV. B
OP183/OP283
7
QB9
RB5
RB4
QB10
RB6
QB11
Q7
RB3
QB6
Q8
QB7
QB8
R9
Q12
R1
R2
QD2
2
Q1
Q2
Q6
Q5
3
CC2
CC3
JB1
QD1
Z1
R8
6
Q4
CF1
R5
QB5A
Q3
QD3
CB1
1
QB4
B
5
CO
QB3
A
R10
R7
R3A
R4A
Q11
R11
CC1
QB2
RB2
QB1
RB1
QB13
R3AT
R3LT
R3B
R4AT
R4B
Q10
QB14
QB12
R4LT
4
Figure 43. OP183 Simplified Schematic
* OP283 SPICE Macro-model
Rev. A, 9/93
*
JCB/ADI
*
* Copyright 1993 by Analog Devices
*
* Refer to “README.DOC” file for License Statement.
* Use of this model indicates your acceptance of the terms and
* provisions in the License Statement.
*
* Node assignments
*
noninverting input
*
| inverting input
*
| | positive supply
*
| | | negative supply
*
| | | |
output
*
| | | |
|
.SUBCKT OP283 2 1 99 50 45
*
* INPUT STAGE AND POLE AT 600 kHz
*
I1
99
8
1E-4
Q1
4
1
6
QP
Q2
5
3
7
QP
CIN
1
2
1.5PF
R1
50
4
1591
R2
50
5
1591
C1
4
5
83.4E-12
R3
6
8
1075
R4
7
8
1075
IOS
1
2
12.5E-9
EOS
3
2
POLY(1) (15,98) 25E-6 1
DC1
2
36
DZ
DC2
1
36
DZ
*
* GAIN STAGE AND DOMINANT POLE AT 10 Hz
*
EREF
98
0
POLY(2) (99,0) (50,0) 0 0.5 0.5
REV.B
G1
98
9
(4,5) 6.28E-4
R5
9
98
1.59E9
C2
9
98
10E-12
D1
9
10
DX
D2
11
9
DX
E1
10
98
POLY(1) 99 98 -1.35 1.03
V2
50
11
–0.63
*
* COMMON MODE STAGE WITH ZERO AT 353 Hz
*
ECM
14
98
POLY(2) (1,98) (2,98) 0 3.5 3.5
R7
14
15
1E6
C4
14
15
3.75E-11
R8
15
98
1
*
*POLE AT 20 MHz
*
GP2
98
31
(9,98) 1E-6
RP2
31
98
1E6
CP2
31
98
7.96E-15
*
*ZERO AT 1.5 MHz
*
EZ1
32
98
(31,98) 1E6
RZ1
32
33
1E6
RZ2
33
98
1
CZ1
32
33
106E-15
*
*POLE AT 10 MHz
*
GP10
98
40
(33,98) 1E-6
RP10
40
98
1E6
CP10
40
98
15.9E-15
*
* OUTPUT STAGE
*
RO1
99
45
140
–11–
OP183/OP283
50
99
45
60
61
60
98
62
50
50
41
140
(99,40)
7.14E-3
(40,50)
7.14E-3
(45,40)
7.14E-3
DX
DX
DC 0
DC 0
(99,50)5E-6
POLY(2) V7 V8 1.075E-3 1 1
DX
D10
42
40
DX
V5
41
45
1.2
V6
45
42
1.5
*
* MODELS USED
*
.MODEL DX D
.MODEL DZ D(IS=1E-15 BV=7.0)
.MODEL QP PNP(BF=143)
.ENDS
C1858a–3–2/96
45
45
50
98
60
62
61
98
99
99
40
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Plastic DIP (N-8)
8
5
0.280 (7.11)
0.240 (6.10)
PIN 1
1
4
0.325 (8.25)
0.300 (7.62)
0.430 (10.92)
0.348 (8.84)
0.060 (1.52)
0.015 (0.38)
0.210
(5.33)
MAX
0.195 (4.95)
0.115 (2.93)
0.130
(3.30)
MIN
0.160 (4.06)
0.115 (2.93)
0.022 (0.558)
0.014 (0.356)
0.100
(2.54)
BSC
0.070 (1.77)
0.045 (1.15)
0.015 (0.381)
0.008 (0.204)
SEATING
PLANE
8-Lead Narrow-Body SO (SO-8)
8
5
0.1574 (4.00)
0.1497 (3.80)
PIN 1
1
0.2440 (6.20)
0.2284 (5.80)
4
0.1968 (5.00)
0.1890 (4.80)
0.0098 (0.25)
0.0040 (0.10)
0.0196 (0.50)
x 45°
0.0099 (0.25)
0.0688 (1.75)
0.0532 (1.35)
0.0500 0.0192 (0.49)
(1.27) 0.0138 (0.35)
BSC
0.0098 (0.25)
0.0075 (0.19)
8°
0°
0.0500 (1.27)
0.0160 (0.41)
PRINTED IN U.S.A.
RO2
G7
G8
G9
D7
D8
V7
V8
GSY
FSY
D9
–12–
REV. B