Burr-Brown INA2137UAE4 Audio differential line receivers â±6db (g= 1/2 or 2) Datasheet

®
INA137
INA2137
INA
137
INA
213
7
INA
137
INA
213
7
AUDIO DIFFERENTIAL LINE RECEIVERS
±6dB (G = 1/2 or 2)
FEATURES
APPLICATIONS
● SINGLE AND DUAL VERSIONS
● LOW DISTORTION: 0.0005% at f = 1kHz
● AUDIO DIFFERENTIAL LINE RECEIVER
● G = 1/2 OR G = 2 AMPLIFIER
● HIGH SLEW RATE: 14V/µs
● FAST SETTLING TIME: 3µs to 0.01%
● WIDE SUPPLY RANGE: ±4V to ±18V
● INSTRUMENTATION BUILDING BLOCK
● CURRENT SHUNT MONITOR
● VOLTAGE-CONTROLLED CURRENT
SOURCE
● GROUND LOOP ELIMINATOR
● LOW QUIESCENT CURRENT: 2.9mA max
● HIGH CMRR: 90dB
● FIXED GAIN = ±6dB
● PACKAGES—SINGLE: 8-PIN DIP, SO-8
DUAL: 14-PIN DIP, SO-14
V+
7
–In
2
12kΩ
6kΩ
5
Sense
DESCRIPTION
The INA137 and INA2137 are differential line receivers
consisting of high performance op amps with on-chip
precision resistors. They are fully specified for high
performance audio applications and have excellent ac
specifications, including low distortion (0.0005% at
1kHz) and high slew rate (14V/µs), assuring good
dynamic response. In addition, wide output voltage
swing and high output drive capability allow use in a
wide variety of demanding applications. The dual version features completely independent circuitry for lowest crosstalk and freedom from interaction, even when
overdriven or overloaded.
6
+In
The INA137 and INA2137 on-chip resistors are laser
trimmed for accurate gain and optimum
common-mode rejection. Furthermore, excellent TCR
tracking of the resistors maintains gain accuracy and
common-mode rejection over temperature. Operation
is guaranteed from ±4V to ±18V (8V to 36V total
supply).
The INA137 is available in 8-pin DIP and SO-8
surface-mount packages. The INA2137 comes in
14-pin DIP and SO-14 surface-mount packages. Both
are specified for operation over the extended industrial
temperature range, –40°C to +85°C.
3
12kΩ
6kΩ
1
Output
Ref
INA137
V+
4
11
V–
–In A
2
12kΩ
6kΩ
13
A
+In A
–In B
3
6
12kΩ
6kΩ
12kΩ
6kΩ
5
12kΩ
14
10
9
B
+In B
12
6kΩ
8
Sense A
Out A
Ref A
Sense B
Out B
Ref B
INA2137
4
V–
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1997 Burr-Brown Corporation
SBOS072
PDS-1391B
Printed in U.S.A. July, 1997
SPECIFICATIONS: VS = ±18V
At TA = +25°C, VS = ±18V, RL = 2kΩ, G = 1/2, and Ref Pin connected to Ground, unless otherwise noted.
INA137PA, UA
INA2137PA, UA
PARAMETER
CONDITIONS
AUDIO PERFORMANCE
Total Harmonic Distortion + Noise, f = 1kHz
Noise Floor, RTO(1)
Headroom, RTO(1)
VIN = 10Vrms
20kHz BW
THD+N < 1%
FREQUENCY RESPONSE
Small-Signal Bandwidth
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
Channel Separation (dual), f = 1kHz
MIN
10V Step, CL = 100pF
10V Step, CL = 100pF
50% Overdrive
OUTPUT NOISE VOLTAGE(2)
f = 20Hz to 20kHz
f = 1kHz
OFFSET VOLTAGE(3)
Input Offset Voltage
vs Temperature
vs Power Supply
INPUT
Common-Mode Voltage Range: Positive
Negative
Differential Voltage Range
Common-Mode Rejection
Impedance(4)
Differential
Common-Mode
GAIN
Initial
Error
vs Temperature
Nonlinearity
RTO
VCM = 0V
Specified Temperature Range
VS = ±4V to ±18V
VO = 0V
VO = 0V
3(V+)–7.5
3(V–)+7.5
VCM = ±46.5V, RS = 0Ω
74
VO = –10V to 10V
(V+)–2
(V–)+2
±4
IO = 0
TEMPERATURE RANGE
Specification Range
Operation Range
Storage Range
Thermal Resistance, θJA
8-Pin DIP
SO-8 Surface-Mount
14-Pin DIP
SO-14 Surface-Mount
UNITS
%
dBu
dBu
4.0
14
2
3
3
123
MHz
V/µs
µs
µs
µs
dB
3.5
26
µVrms
nV/√HZ
±1000
±60
µV
µV/°C
µV/V
3(V+)–6
3(V–)+3
See Typical Curve
90
dB
24
18
kΩ
kΩ
0.5
±0.01
±1
0.0001
OUTPUT
Voltage Output, Positive
Negative
Current Limit, Continuous to Common
Capacitive Load (Stable Operation)
MAX
0.0005
–106
+23
±100
±2
±5
VO = –10V to 10V
POWER SUPPLY
Rated Voltage
Voltage Range
Quiescent Current (per Amplifier)
TYP
V
V
±0.1
±10
(V+)–1.8
(V–)+1.6
±60
500
±18
±2.4
–40
–55
–55
100
150
80
100
V/V
%
ppm/°C
%
V
V
mA
pF
±18
±2.9
V
V
mA
85
125
125
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
RTO = Referred to Output.
NOTES: (1) dBu = 20log (Vrms /0.7746). (2) Includes effects of amplifier’s input current noise and thermal noise contribution of resistor network.
(3) Includes effects of amplifier’s input bias and offset currents. (4) Internal resistors are ratio matched but have ±25% absolute value.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
INA137, INA2137
2
PIN CONFIGURATIONS
Top View
8-Pin DIP/SO-8
Top View
14-Pin DIP/SO-14
Ref
1
8
NC
NC
1
–In
2
7
V+
–In A
2
14
Ref A
13
Out A
A
+In
3
6
Output
+In A
3
12
Sense A
V–
4
5
Sense
V–
4
11
V+
+In B
5
10
Sense B
B
NC = No Connection
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage, V+ to V– .................................................................... 40V
Input Voltage Range .......................................................................... ±80V
Output Short-Circuit (to ground)(2) ............................................................ Continuous
Operating Temperature ................................................. –55°C to +125°C
Storage Temperature ..................................................... –55°C to +125°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
PRODUCT
PACKAGE
Single
INA137PA
INA137UA
8-Pin DIP
SO-8 Surface-Mount
006
182
–40°C to +85°C
–40°C to +85°C
Dual
INA2137PA
INA2137UA
14-Pin DIP
SO-14 Surface-Mount
010
235
–40°C to +85°C
–40°C to +85°C
9
Out B
NC
7
8
Ref B
ELECTROSTATIC
DISCHARGE SENSITIVITY
PACKAGE/ORDERING INFORMATION
SPECIFICATION
TEMPERATURE
RANGE
6
NC = No Connection
NOTE: (1) Stresses above these ratings may cause permanent damage.
(2) One channel per package.
PACKAGE
DRAWING
NUMBER(1)
–In B
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
®
3
INA137, INA2137
TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.
TOTAL HARMONIC DISTORTION+NOISE
vs FREQUENCY
DIM INTERMODULATION DISTORTION
vs OUTPUT AMPLITUDE
0.1
5
BW = 100kHz
VO = 5Vrms
RTO
DIM (%)
THD+Noise (%)
1
0.010
RL = 100kΩ
RL = 2kΩ
0.001
0.1
RL = 2kΩ, 600Ω
0.010
RL = 600Ω
0.001
0.0001
20
100
1k
10k 20k
–10
5
10
15
20
HEADROOM - TOTAL HARMONIC DISTORTION+NOISE
vs OUTPUT AMPLITUDE
HARMONIC DISTORTION PRODUCTS
vs FREQUENCY
25
0.001
VO = 1Vrms
Amplitude (% of Fundamental)
f = 1kHz
0.1
RTO
0.010
RL = 600Ω
0.001
RL = 2kΩ,
100kΩ
RL = 2kΩ
RL = 600Ω
2nd Harmonic
0.0001
3rd Harmonic
RL = 2kΩ
0.00001
RL = 600Ω
(
Noise Limited)
0.000001
0.0001
0
5
10
15
20
25
20
30
100
1k
Output Amplitude (dBu)
Frequency (Hz)
OUTPUT VOLTAGE NOISE SPECTRAL DENSITY
vs FREQUENCY
OUTPUT NOISE VOLTAGE
vs NOISE BANDWIDTH
10k
10k 20k
100
Noise Voltage (µVrms)
THD+Noise (%)
0
Output Amplitude (dBu)
1
Voltage Noise (nV/√Hz)
–5
Frequency (Hz)
1k
100
10
10
1
0.1
1
10
100
1k
10k
100k
1M
1
Frequency (Hz)
100
1k
Frequency (Hz)
®
INA137, INA2137
10
4
10k
100k
TYPICAL PERFORMANCE CURVES
(CONT)
At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.
GAIN vs FREQUENCY
COMMON-MODE REJECTION vs FREQUENCY
100
Common-Mode Rejection (dB)
10
Voltage Gain (dB)
0
–10
–20
80
60
RTO
40
–30
1k
10k
100k
1M
10M
1k
10k
Frequency (Hz)
100k
1M
Frequency (Hz)
CHANNEL SEPARATION vs FREQUENCY
POWER SUPPLY REJECTION vs FREQUENCY
130
120
RL = 100kΩ
100
80
Channel Separation (dB)
Power Supply Rejection (dB)
RTO
–PSR
60
40
+PSR
20
120
RL = 2kΩ
110
100
Dual Devices
0
90
100
1k
10k
100k
20
1M
100
1k
10k 20k
Frequency (Hz)
Frequency (Hz)
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
INPUT COMMON-MODE VOLTAGE
vs OUTPUT VOLTAGE
40
80
G = 1/2
VS = ±18V
Common-Mode Voltage (V)
Output Voltage (Vp-p)
60
30
20
10
40
20
0
–20
–40
–60
VREF = 0V
RL = 2kΩ
–80
0
100
1k
10k
100k
1M
–20
10M
–15
–10
–5
0
5
10
15
20
Output Voltage (V)
Frequency (Hz)
®
5
INA137, INA2137
TYPICAL PERFORMANCE CURVES
(CONT)
At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.
QUIESCENT CURRENT vs TEMPERATURE
SLEW RATE vs TEMPERATURE
4
16
3
14
Slew Rate (V/µs)
Quiescent Current (mA)
–SR
2
1
0
+SR
12
10
8
–75
–50
–25
0
25
50
75
100
125
–75
–50
–25
Temperature (°C)
0
25
50
75
100
125
Temperature (°C)
SHORT-CIRCUIT CURRENT vs TEMPERATURE
QUIESCENT CURRENT vs SUPPLY VOLTAGE
80
3
40
Quiescent Current (mA)
Short-Circuit Current (mA)
60
+ISC
20
0
–20
–ISC
–40
2
1
–60
0
–80
–75
–50
–25
0
25
50
75
100
125
±4
±8
±10
±12
±14
Supply Voltage (V)
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
30
35
Typical Production
Distribution of
Packaged Units.
25
Percent of Amplifiers (%)
30
25
20
15
10
±18
Typical Production Distribution
of Packaged Units.
15
10
0
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
5
Offset Voltage Drift (µV/°C)
Offset Voltage (µV)
®
INA137, INA2137
±16
20
5
–1000
–900
–800
–700
–600
–500
–400
–300
–200
–100
0
100
200
300
400
500
600
700
800
900
1000
Percent of Amplifiers (%)
±6
Temperature (°C)
6
TYPICAL PERFORMANCE CURVES
(CONT)
At TA = +25°C, VS = ±18V, and G = 1/2, unless otherwise noted.
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
70
17
–55°C
60
15
25°C
14
50
Overshoot (%)
125°C
13
85°C
12
–12
85°C
125°C
–13
–14
–15
25°C
–16
40
30
20
RL = 2kΩ
100mV Step
10
–55°C
0
–17
0
±20
±40
±60
0
±80
200
400
600
800
1000
1200
Load Capacitance (pF)
Output Current (mA)
LARGE-SIGNAL STEP RESPONSE
CL = 100pF
SMALL-SIGNAL STEP RESPONSE
CL = 100pF
5V/div
50mV/div
Output Voltage Swing (V)
16
CL = 500pF
1µs/div
1µs/div
®
7
INA137, INA2137
APPLICATIONS INFORMATION
The INA137 and INA2137 have excellent distortion characteristics. THD+Noise is below 0.001% throughout the audio
frequency range. Up to approximately 10kHz distortion is
below the measurement limit of commonly used test equipment. Furthermore, distortion remains relatively flat over its
wide output voltage swing range (approximately 1.7V from
either supply).
The INA137 and INA2137 are differential line receivers
suitable for a wide range of audio and general-purpose
applications. Figure 1 shows the basic G = 1/2 (–6dB)
differential receiver configuration. The input and feedback
resistors can be reversed to achieve G = 2 (+6dB), as shown
in Figure 2. For applications requiring G = 1 (0dB), the
INA134 and INA2134 are recommended.
OFFSET VOLTAGE TRIM
Decoupling capacitors are strongly recommended for applications with noisy or high impedance power supplies. The
capacitors should be placed close to the device pins as
shown in Figure 1. All circuitry is completely independent
in the dual version assuring lowest crosstalk and normal
behavior when one amplifier is overdriven or short-circuited.
The INA137 and INA2137 are laser trimmed for low offset
voltage and drift. Most applications require no external offset
adjustment. Figure 3 shows an optional circuit for trimming
the output offset voltage. The output is referred to the output
reference terminal (pin 1), which is normally grounded. A
voltage applied to the Ref terminal will be summed with the
output signal. This can be used to null offset voltage as
shown in Figure 3. The source impedance of a signal applied
to the Ref terminal should be less than 10Ω to maintain good
common-mode rejection.
As shown in Figure 1, the differential input signal is connected to pins 2 and 3. The source impedances connected to
the inputs must be nearly equal to assure good commonmode rejection. A 5Ω mismatch in source impedance will
degrade the common-mode rejection of a typical device to
approximately 77dB (RTO). If the source has a known
impedance mismatch, an additional resistor in series with
the opposite input can be used to preserve good commonmode rejection.
INA137
–In
V2
R1
R2
2
5
12kΩ
6kΩ
6
V+
V–
VO = 2 (V3 – V2)
1µF
1µF
+In
7
4
V3
INA137
R1
–In
2
V2
R3
R4
3
1
12kΩ
6kΩ
R2
5
12kΩ
FIGURE 2. G = 2 Differential Receiver.
6kΩ
6
VO = 1/2 (V3 – V2)
R3
+In
3
V3
G = 1/2
INA137
R4
1
12kΩ
2
V2
6kΩ
R2
6kΩ
R1
12kΩ
5
6
FIGURE 1. G = 1/2 Differential Receiver (Basic Power
Supply and Signal Connections).
20Ω
V3
3
VO
R3
12kΩ
AUDIO PERFORMANCE
R4
6kΩ
The INA137 and INA2137 were designed for enhanced ac
performance. Very low distortion, low noise, and wide bandwidth provide superior performance in high quality audio
applications. Laser-trimmed matched resistors provide optimum common-mode rejection (typically 90dB), especially
when compared to circuits implemented with an op amp
and discrete precision resistors. In addition, high slew rate
(14V/µs) and fast settling time (3µs to 0.01%) ensure excellent dynamic performance.
+15V
VO = 1/2 (V3 – V2)
Offset Adjustment
Range = ±1mV
1
250kΩ
100kΩ
10Ω
–15V
FIGURE 3. Offset Adjustment.
®
INA137, INA2137
8
INA137
2
6kΩ
G=2
12kΩ
5
V1
–In
1
V1
6
6kΩ
1/2
OPA2134
V0 = 2V1 + V2
2
6kΩ
INA137
12kΩ
5
R2
12kΩ
V2
6
R1
3
V0
0utput
R2
FIGURE 4. Precision Summing Amplifier.
V2
–In
2
6kΩ
12kΩ
1
5
VO = 2 (1 + 2R2/R1) (V2 –V1)
6
+In
6kΩ
3
+In
INA137
12kΩ
1/2
OPA2134
3
12kΩ
6kΩ
3
BUF634
6
FIGURE 6. High Input Impedance Instrumentation Amplifier.
VO
1
FIGURE 5. Boosting Output Current.
The difference amplifier is a highly versatile building
block that is useful in a wide variety of applications. See
the INA105 data sheet for additional applications ideas,
including:
• Precision Voltage-to-Current Converter with Differential
Inputs
• Differential Input Voltage-to-Current Converter for Low
IOUT
• Isolating Current Source
• Current Receiver with Compliance to Rails
• ±10V Precision Voltage Reference
• ±5V Precision Voltage Reference
• Differential Output Difference Amplifier
• Isolating Current Source with Buffering Amplifier for
Greater Accuracy
• Window Comparator with Window Span and Window
Center Inputs
• Precision Voltage-Controlled Current Source with Buffered Differential Inputs and Gain
• Precision Average Value Amplifier
• Precision Bipolar Offsetting
• Precision Summing Amplifier with Gain
• Instrumentation Amplifier Guard Drive Generator
• Precision Summing Instrumentation Amplifier
• Precision Absolute Value Buffer
®
9
INA137, INA2137
PACKAGE OPTION ADDENDUM
www.ti.com
12-Jan-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
INA137PA
ACTIVE
PDIP
P
8
50
Green (RoHS &
no Sb/Br)
CU NIPDAU
N / A for Pkg Type
INA137PAG4
ACTIVE
PDIP
P
8
50
Green (RoHS &
no Sb/Br)
CU NIPDAU
N / A for Pkg Type
INA137UA
ACTIVE
SOIC
D
8
100
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
INA137UA/2K5
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
INA137UA/2K5G4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
INA137UAG4
ACTIVE
SOIC
D
8
100
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
INA2137PA
ACTIVE
PDIP
N
14
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
N / A for Pkg Type
INA2137PAG4
ACTIVE
PDIP
N
14
25
Green (RoHS &
no Sb/Br)
CU NIPDAU
N / A for Pkg Type
INA2137UA
ACTIVE
SOIC
D
14
58
Pb-Free
(RoHS)
CU NIPDAU
Level-3-260C-168 HR
INA2137UA/2K5
ACTIVE
SOIC
D
14
2500
Pb-Free
(RoHS)
CU NIPDAU
Level-3-260C-168 HR
INA2137UA/2K5E4
ACTIVE
SOIC
D
14
2500
Pb-Free
(RoHS)
CU NIPDAU
Level-3-260C-168 HR
INA2137UAE4
ACTIVE
SOIC
D
14
58
Pb-Free
(RoHS)
CU NIPDAU
Level-3-260C-168 HR
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
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Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
12-Jan-2007
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Addendum-Page 2
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