OPA37GP [BB]
Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS; 超低噪声，精密运算放大器
| 型号： | OPA37GP |
| 厂家： | 
BURR-BROWN CORPORATION |
| 描述： | Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS |
| 文件： | 总18页 (文件大小：368K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OPA27
OPA37
OPA27
O
P
A
2
7
SBOS135B – JANUARY 1984 – REVISED FEBRUARY 2005
Ultra-Low Noise, Precision
OPERATIONAL AMPLIFIERS
DESCRIPTION
FEATURES
The OPA27 and OPA37 are ultra-low noise, high-precision
monolithic operational amplifiers.
● LOW NOISE: 4.5nV/√Hz max at 1kHz
● LOW OFFSET: 100µV max
Laser-trimmed thin-film resistors provide excellent long-term
voltage offset stability and allow superior voltage offset
compared to common zener-zap techniques.
● LOW DRIFT: 0.4µV/°C
● HIGH OPEN-LOOP GAIN: 117dB min
● HIGH COMMON-MODE REJECTION: 100dB min
● HIGH POWER-SUPPLY REJECTION: 94dB min
A unique bias current cancellation circuit allows bias and
offset current specifications to be met over the full –55°C to
+125°C temperature range.
● FITS OP-07, OP-05, AD510, AND AD517
SOCKETS
The OPA27 is internally compensated for unity-gain stability.
The decompensated OPA37 requires a closed-loop gain ≥ 5.
APPLICATIONS
● PRECISION INSTRUMENTATION
The Texas Instrument OPA27 and OPA37 are improved
replacements for the industry-standard OP-27 and OP-37.
● DATA ACQUISITION
● TEST EQUIPMENT
7
● PROFESSIONAL AUDIO EQUIPMENT
● TRANSDUCER AMPLIFIERS
● RADIATION HARD EQUIPMENT
+VCC
8
Trim
1
Trim
6
Output
2
–In
3
+In
4
–VCC
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1984-2005, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
Supply Voltage................................................................................... ±22V
Internal Power Dissipation (2) ....................................................... 500mW
Input Voltage ..................................................................................... ±VCC
(3)
Output Short-Circuit Duration
................................................. Indefinite
Differential Input Voltage (4) ............................................................. ±0.7V
Differential Input Current (4) ........................................................... ±25mA
Storage Temperature Range .......................................... –55°C to +125°C
Operating Temperature Range......................................... –40°C to +85°C
Lead Temperature:
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.
P (soldering, 10s) ....................................................................... +300°C
U (soldering, 3s) ......................................................................... +260°C
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. (2) Maximum package power dissipation versus ambient
temperature. (2) To common with ±VCC = 15V. (4) The inputs are protected by
back-to-back diodes. Current limiting resistors are not used in order to achieve
low noise. If differential input voltage exceeds ±0.7V, the input current should
be limited to 25mA.
PIN CONFIGURATION
Top View
PACKAGE/ORDERING INFORMATION(1)
Offset Trim
1
2
3
4
8
7
6
5
Offset Trim
+VCC
PACKAGE
DRAWING
PACKAGE
MARKING
PRODUCT PACKAGE-LEAD
θJA
–In
+In
OPA27
OPA27
DIP-8
SO-8
100°C/W
160°C/W
P
D
OPA27GP
OPA27U
Output
NC
OPA37
OPA37
DIP-8
SO-8
100°C/W
160°C/W
P
D
OPA37GP
OPA37U
–VCC
NOTE: (1) For the most current package and ordering information, see the
Package Option Addendum located at the end of this document, or see the TI
website at www.ti.com.
NC = No Connection
OPA27, OPA37
2
SBOS135B
www.ti.com
ELECTRICAL CHARACTERISTICS
At VCC = ±15V and TA = +25°C, unless otherwise noted.
OPA27
OPA37
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT NOISE(6)
Voltage, fO = 10Hz
3.8
3.3
3.2
0.09
1.7
1.0
0.4
8.0
5.6
4.5
nV/√Hz
nV/√Hz
nV/√Hz
µVPP
pA/√Hz
pA/√Hz
pA/√Hz
f
f
f
O = 30Hz
O = 1kHz
B = 0.1Hz to 10Hz
0.25
Current,(1) fO = 10Hz
f
f
O = 30Hz
O = 1kHz
0.6
OFFSET VOLTAGE(2)
Input Offset Voltage
Average Drift(3)
±25
±0.4
0.4
±100
±1.8 (6)
2.0
µV
µV/°C
µV/mo
TA MIN to TA MAX
Long Term Stability(4)
Supply Rejection
±VCC = 4 to 18V
±VCC = 4 to 18V
94
120
±1
dB
µV/V
±20
±80
75
BIAS CURRENT
Input Bias Current
±15
10
nA
nA
OFFSET CURRENT
Input Offset Current
IMPEDANCE
Common-Mode
2 || 2.5
GΩ || pF
VOLTAGE RANGE
Common-Mode Input Range
Common-Mode Rejection
±11
100
±12.3
122
V
dB
VIN = ±11VDC
OPEN-LOOP VOLTAGE GAIN, DC
R
R
L ≥ 2kΩ
L ≥ 1kΩ
117
124
124
dB
dB
FREQUENCY RESPONSE
Gain-Bandwidth Product(5)
OPA27
OPA37
5(6)
45(6)
8
63
MHz
MHz
Slew Rate(5)
VO = ±10V,
L = 2kΩ
R
OPA27, G = +1
OPA37, G = +5
OPA27, G = +1
OPA37, G = +5
1.7 (6)
11(6)
1.9
11.9
25
V/µs
V/µs
µs
Settling Time, 0.01%
25
µs
RATED OUTPUT
Voltage Output
R
R
L ≥ 2kΩ
L ≥ 600Ω
DC, Open Loop
L = 0Ω
±12
±10
±13.8
±12.8
70
V
V
Ω
Output Resistance
Short Circuit Current
R
25
60(6)
mA
POWER SUPPLY
Rated Voltage
±15
VDC
Voltage Range,
Derated Performance
Current, Quiescent
±4
±22
5.7
VDC
mA
I
O = 0mADC
3.3
TEMPERATURE RANGE
Specification
Operating
–40
–40
+85
+85
°C
°C
NOTES: (1) Measured with industry-standard noise test circuit (Figures 1 and 2). Due to errors introduced by this method, these current noise specifications should
be used for comparison purposes only. (2) Offset voltage specification are measured with automatic test equipment after approximately 0.5 seconds from power turn-
on. (3) Unnulled or nulled with 8kΩ to 20kΩ potentiometer. (4) Long-term voltage offset vs time trend line does not include warm-up drift. (5) Typical specification only
on plastic package units. Slew rate varies on all units due to differing test methods. Minimum specification applies to open-loop test. (6) This parameter specified by
design.
OPA27, OPA37
3
SBOS135B
www.ti.com
ELECTRICAL CHARACTERISTICS
At VCC = ±15V and –40°C ≤ TA ≤ +85°C, unless otherwise noted.
OPA27
OPA37
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INPUT VOLTAGE(1)
Input Offset Voltage
Average Drift(2)
±48
±0.4
±220(3)
±1.8(3)
µV
µV/°C
TA MIN to TA MAX
±VCC = 4.5 to 18V
±VCC = 4.5 to 18V
Supply Rejection
90 (3)
122
±21
20
dB
nA
nA
BIAS CURRENT
Input Bias Current
±150(3)
OFFSET CURRENT
Input Offset Current
135(3)
VOLTAGE RANGE
Common-Mode Input Range
Common-Mode Rejection
±10.5(3)
96(3)
±11.8
V
V
IN = ±11VDC
122
dB
OPEN-LOOP GAIN, DC
Open-Loop Voltage Gain
R
L ≥ 2kΩ
L = 2kΩ
113(3)
120
dB
RATED OUTPUT
Voltage Output
R
±11.0(3)
±13.4
V
Short Circuit Current
V
O = 0VDC
25
mA
TEMPERATURE RANGE
Specification
–40
+85
°C
NOTES: (1) Offset voltage specification are measured with automatic test equipment after approximately 0.5s from power turn-on. (2) Unnulled or nulled with 8kΩ to
20kΩ potentiometer. (3) This parameter specified by design.
OPA27, OPA37
4
SBOS135B
www.ti.com
TYPICAL PERFORMANCE CURVES
At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted.
INPUT VOLTAGE NOISE vs NOISE BANDWIDTH
(0.1Hz to Indicated Frequency)
INPUT OFFSET VOLTAGE WARM-UP DRIFT
+10
10
1
+5
0
0.1
0.01
–5
RS = 0 Ω
–10
0
1
2
3
4
5
6
100
1k
10k
100k
±20
10k
Time From Power Turn-On (min)
Noise Bandwidth (Hz)
VOLTAGE NOISE SPECTRAL DENSITY
vs SUPPLY VOLTAGE
TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY
vs SOURCE RESISTANCE
100
80
5
4
3
2
1
60
R1
-
40
20
10Hz
+
R1
RSOURCE = 2 x R1
10
8
6
1kHz
10Hz
4
2
1
Resistor Noise Only
1kHz
100
1k
10k
0
±5
±10
±15
Source Resistance (Ω)
Supply Voltage (VCC )
VOLTAGE NOISE SPECTRAL DENSITY
vs TEMPERATURE
INPUT CURRENT NOISE SPECTRAL DENSITY
Current Noise Test Circuit
5
4
3
2
1
10
8
6
10Hz
4
2
10kΩ
100kΩ 500kΩ
eno
DUT
500kΩ
1
0.8
0.6
2
In
=
√(eno
)
– (130nV)2
1kHz
1MΩ x 100
0.4
0.2
0.1
Warning: This industry-standard equation
is inaccurate and these figures should
be used for comparison purposes only!
–75
–50
–25
0
+25
+50
+75 +100 +125
10
100
Frequency (Hz)
1k
Ambient Temperature (°C)
OPA27, OPA37
5
SBOS135B
www.ti.com
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted.
INPUT VOLTAGE NOISE SPECTRAL DENSITY
OPEN-LOOP FREQUENCY RESPONSE
10
8
140
120
100
80
OPA37
OPA27
6
60
4
40
2
20
0
0
1
10
100
1k
10
10
1
100
1k
10k
100k
1M
10M
100M
Frequency (Hz)
Frequency (Hz)
OPA27 CLOSED-LOOP VOLTAGE GAIN AND
PHASE SHIFT vs FREQUENCY (G = 100)
BIAS AND OFFSET CURRENT vs TEMPERATURE
50
40
20
15
10
5
20
15
10
5
0
Bias
30
–45
20
–90
Offset
Gain
10
–135
–180
–225
0
–10
–20
0
0
–75
–50
–25
0
+25
+50
+75 +100 +125
100
1k
10k
100k
1M
10M
100M
Ambient Temperature (°C)
Frequency (Hz)
OPA37 CLOSED-LOOP VOLTAGE GAIN AND
PHASE SHIFT vs FREQUENCY (G = 100)
COMMON-MODE REJECTION vs FREQUENCY
50
40
140
120
100
80
0
30
–45
–90
–135
–180
–225
Ø
20
OPA37
G = 5
10
60
Gain
OPA27
0
40
–10
–20
20
0
10
100
1k
10k
100k
1M
10M
100M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
OPA27, OPA37
6
SBOS135B
www.ti.com
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted.
POWER SUPPLY REJECTION vs FREQUENCY
OPEN-LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE
140
120
100
80
130
125
120
115
OPA27
RL = 2kΩ
–VCC
RL = 600Ω
+VCC
60
40
20
0
1
–75
0
10
100
1k
10k
100k
1M
10M
±5
±10
±15
±20
±25
Frequency (Hz)
Supply Voltage (VCC
)
OPEN-LOOP VOLTAGE GAIN vs TEMPERATURE
SUPPLY CURRENT vs SUPPLY VOLTAGE
6
5
4
3
2
1
0
135
130
125
120
115
+125°C
+25°C
–55°C
RL = 2kΩ
–50
–25
0
+25
+50
+75 +100 +125
0
±5
±10
±15
±20
Ambient Temperature (°C)
Supply Voltage (VCC
)
COMMON-MODE INPUT VOLTAGE RANGE
vs SUPPLY VOLTAGE
OPA27 SMALL SIGNAL TRANSIENT RESPONSE
+15
+10
+5
+60
+40
+20
0
TA = –55°C
TA = +25°C
TA = +125°C
TA = –55°C
TA = +25°C
TA = +125°C
0
–5
–20
–40
–60
AVCL = +1
CL = 15pF
–10
–15
±5
±10
±15
±20
0
0.5
1.5
2.5
1
2
Supply Voltage (VCC
)
Time (µs)
OPA27, OPA37
7
SBOS135B
www.ti.com
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted.
OPA37 SMALL SIGNAL TRANSIENT RESPONSE
OPA27 LARGE SIGNAL TRANSIENT RESPONSE
+60
+40
+20
0
+6
+4
+2
0
–20
–40
–60
–2
–4
–6
AV = +5
CL = 25pF
AVCL = +1
0
0.2
0.4
0.6
Time (µs)
0.8
1.0
1.2
0
2
4
6
8
10
12
Time (µs)
OPA37 LARGE SIGNAL TRANSIENT RESPONSE
+15
+10
+5
0
–5
AV = +5
–10
–15
0
1
2
3
4
5
6
Time (µs)
OPA27, OPA37
8
SBOS135B
www.ti.com
THERMOELECTRIC POTENTIALS
APPLICATIONS INFORMATION
OFFSET VOLTAGE ADJUSTMENT
The OPA27 and OPA37 are laser-trimmed to microvolt-level
input offset voltages, and for very-low input offset voltage
drift.
The OPA27 and OPA37 offset voltages are laser-trimmed
and require no further trim for most applications. Offset
voltage drift will not be degraded when the input offset is
nulled with a 10kΩ trim potentiometer. Other potentiometer
values from 1kΩ to 1MΩ can be used, but VOS drift will be
degraded by an additional 0.1µV/°C to 0.2µV/°C. Nulling
large system offsets by use of the offset trim adjust will
degrade drift performance by approximately 3.3µV/°C per
millivolt of offset. Large system offsets can be nulled without
drift degradation by input summing.
Careful layout and circuit design techniques are necessary to
prevent offset and drift errors from external thermoelectric
potentials. Dissimilar metal junctions can generate small
EMFs if care is not taken to eliminate either their sources
(lead-to-PC, wiring, etc.) or their temperature difference (see
Figure 11).
Short, direct mounting of the OPA27 and OPA37 with close
spacing of the input pins is highly recommended. Poor layout
can result in circuit drifts and offsets which are an order of
magnitude greater than the operational amplifier alone.
The conventional offset voltage trim circuit is shown in Figure
3. For trimming very small offsets, the higher resolution
circuit shown in Figure 4 is recommended.
The OPA27 and OPA37 can replace 741-type operational
amplifiers by removing or modifying the trim circuit.
0.1µF
100kΩ
10Ω
2kΩ
DUT
22µF
4.3kΩ
OPA111
4.7µF
Scope
x1
IN = 1MΩ
Voltage Gain
Total = 50,000
2.2µF
R
100kΩ
0.1µF
110kΩ
24.3kΩ
NOTE: All capacitor values are for nonpolarized capacitors only.
FIGURE 1. 0.1Hz to 10Hz Noise Test Circuit.
0.1Hz TO 10Hz NOISE
40nv/div
1s/div
FIGURE 2. Low Frequency Noise.
OPA27, OPA37
9
SBOS135B
www.ti.com
NOISE: BIPOLAR VERSUS FET
COMPENSATION
Low-noise circuit design requires careful analysis of all noise
sources. External noise sources can dominate in many
cases, so consider the effect of source resistance on overall
operational amplifier noise performance. At low source im-
pedances, the lower voltage noise of a bipolar operational
amplifier is superior, but at higher impedances the high
current noise of a bipolar amplifier becomes a serious liabil-
ity. Above about 15kΩ, the OPA111 low-noise FET opera-
tional amplifier is recommended for lower total noise than the
OPA27, as shown in Figure 5.
Although internally compensated for unity-gain stability, the
OPA27 may require a small capacitor in parallel with a
feedback resistor (RF) which is greater than 2kΩ. This ca-
pacitor will compensate the pole generated by RF and CIN
and eliminate peaking or oscillation.
INPUT PROTECTION
Back-to-back diodes are used for input protection on the
OPA27 and OPA37. Exceeding a few hundred millivolts differ-
ential input signal will cause current to flow, and without
external current limiting resistors, the input will be destroyed.
+VCC
Accidental static discharge, as well as high current, can dam-
age the amplifier’s input circuit. Although the unit may still be
functional, important parameters such as input offset voltage,
drift, and noise may be permanently damaged, as will any
precision operational amplifier subjected to this abuse.
(1)
NOTE: (1) 10kΩ to 1MΩ
Trim Potentiometer
(10kΩ Recommended).
7
8
2
1
Transient conditions can cause feedthrough due to the amplifier’s
finite slew rate. When using the OPA27 as a unity-gain buffer
(follower) a feedback resistor of 1kΩ is recommended, as
shown in Figure 6.
6
OPA27/37
3
4
±4mV Typical Trim Range
–V
CC
RF
≈ 1kΩ
FIGURE 3. Offset Voltage Trim.
+VCC
–
OPA27
Output
(1)
+
NOTE: (1) 1kΩ Trim Potentiometer.
Input
1.9V/µs
4.7kΩ
4.7kΩ
7
8
2
3
1
6
FIGURE 6. Pulsed Operation.
OPA27/37
4
±280µV Typical Trim Range
7.87kΩ
G ≈ 40dB at 1kHz.
Metal film resistors.
Film capacitors.
RL and CL per cartridge
manufacturer’s
–V
CC
0.01µF 0.03µF
97.6kΩ
FIGURE 4. High Resolution Offset Voltage Trim.
recommendations.
100Ω
2
1µF
Output
1k
6
OPA27 + Resistor
OPA37
3
EO
OPA111 + Resistor
Moving
Magnet
20kΩ
RL
CL
RS
100
Cartridge
OPA111 + Resistor
Resistor Noise Only
FIGURE 7. Low-Noise RIAA Preamplifier.
10
Resistor Noise Only
OPA27 + Resistor
1kΩ
1
100
1kΩ
2
1k
10k
100k
1M
10M
Input
6
Source Resistance, RS (Ω)
Output
OPA27
3
EO = √en2 + (inRS)2 + 4kTRS
FO = 1kHz
FIGURE 8. Unity-Gain Inverting Amplifier.
FIGURE 5. Voltage Noise Spectral Density Versus Source
Resistance.
OPA27, OPA37
10
SBOS135B
www.ti.com
G ≈ 50dB at 1kHz.
Metal film resistors.
Film capacitors.
4.99kΩ 0.01µF
316kΩ
RL and CL per head
1kΩ
manufacturer’s
recommendations.
1kΩ
2
3
100Ω
Input
2
6
1µF
Output
Output
OPA37
6
OPA37
250Ω
3
500pF
20kΩ
RL
CL
Magnetic Tape Head
FIGURE 10. NAB Tape Head Preamplifier.
FIGURE 9. High Slew Rate Unity-Gain Inverting Amplifier.
10kΩ
Total Gain = 106
10Ω
10Hz Low-
Pass Filter
Chart
Recorder
10mV/mm
5mm/s
G =1k
DUT
Offset
A. 741 noise with circuit well-shielded from air
currents and RFI. (Note scale change.)
5µV
B. OP-07AH with circuit well-shielded from air
currents and RFI.
0.5µV
0.5µV
0.5µV
0.5µV
C. OPA27AJ with circuit well-shielded from air
currents and RFI. (Represents ultimate
OPA27 performance potential.)
D. OPA27 with circuit unshielded and exposed
to normal lab bench-top air currents.
(External thermoelectric potentials far
exceed OPA27 noise.)
E. OPA27 with heat sink and shield which
protects input leads from air currents.
Conditions same as (D).
FIGURE 11. Low Frequency Noise Comparison.
OPA27, OPA37
11
SBOS135B
www.ti.com
3
2
Gain = 100
For Gain = 1000, use INA106 differential amplifier.
–In
6
Bandwidth ≈ 500kHz
OPA37
INA105
Differential Amplifier
RF
5kΩ
25kΩ
25kΩ
25kΩ
2
3
5
6
RG
101Ω
Input Stage Gain = 1 + 2RF/RG
RF
5kΩ
Output
2
25kΩ
6
OPA37
3
+In
1
FIGURE 12. Low Noise Instrumentation Amplifier.
0.1µF
1kΩ
100Ω
100kΩ
200Ω
2
0.1µF
2
3
Output
6
500pF
OPA37
Output
6
3
OPA27
2kΩ
1MΩ
NOTE: Use metal film resistors
and plastic film capacitor. Circuit
must be well shielded to achieve
low noise.
Dexter 1M
Thermopile
Detector
EDO 6166
Transducer
Frequency Response
≈ 1kHz to 50kHz
Responsivity ≈ 2.5 x 104V/W
Output Noise ≈ 30µVrms, 0.1Hz to 10Hz
FIGURE 13. Hydrophone Preamplifier.
FIGURE 14. Long-Wavelength Infrared Detector Amplifier.
20pF
TTL INPUT GAIN
9.76kΩ
“1”
“0”
+1
–1
Balance
Trim
500Ω
10kΩ
Input
2
3
Output
6
8
4.99kΩ
OPA27
D1
D2
S1
S2
1
4.75kΩ
4.75kΩ
1kΩ
TTL
In
DG188
Offset
Trim
+VCC
FIGURE 15. High Performance Synchronous Demodulator.
12
OPA27, OPA37
SBOS135B
www.ti.com
Gain = –1010V/V
OS ≈ 2µV
Drift ≈ 0.07µV/°C
V
e
n ≈ 1nV/√Hz at 10Hz
0.9nV/√Hz at 100Hz
0.87nV/√Hz at 1kHz
Full Power Bandwidth ≈ 180kHz
Gain Bandwidth ≈ 500MHz
Equivalent Noise Resistance ≈ 50Ω
Input
20Ω
20Ω
20Ω
20Ω
20Ω
2kΩ
Signal-to-Noise Ratio √N
since amplifier noise is
uncorrelated.
2
3
2kΩ
2kΩ
2kΩ
2kΩ
2kΩ
6
6
6
6
6
OPA37
2kΩ
2
3
OPA37
2kΩ
2kΩ
2
3
2
6
OPA37
OPA37
3
Output
2kΩ
2
3
OPA37
2kΩ
2
3
OPA37
N = 10 Each OPA37
FIGURE 16. Ultra-Low Noise “N”-Stage Parallel Amplifier.
OPA27, OPA37
13
SBOS135B
www.ti.com
5V
5V
+10V
0V
+10V
0V
–10V
–10V
5µs
5µs
RS = 50Ω
RS = 50Ω
1kΩ
1kΩ
2
6
Output
OPA37
2
3
3
250Ω
6
Output
OPA27
Input
500pF
Input
FIGURE 18. High Slew Rate Unity-Gain Buffer.
FIGURE 17. Unity-Gain Buffer.
+15V
200Ω
20kΩ
10µF/20V
100Ω
10kΩ
+
1
VIRTEC V1000
Planar Tunnel
Diode
2
3
2
3
50Ω
Input
100µF/20V
Tantalum
6
6
0.01µF
OPA37
OPA27
2
Output
Video
Output
+
10kΩ
10kΩ
RFC
200Ω
500pF
3
Siemens LHI 948
FIGURE 19. RF Detector and Video Amplifier.
FIGURE 20. Balanced Pyroelectric Infrared Detector.
4.8V
+
1kΩ
2
3
6
0
OPA27
Airpax
Magnetic
Pickup
Output
–
fOUT RPM • N
Where N = Number of Gear Teeth
FIGURE 21. Magnetic Tachometer.
OPA27, OPA37
14
SBOS135B
www.ti.com
PACKAGE OPTION ADDENDUM
www.ti.com
8-Mar-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
PDIP
SOIC
SOIC
PDIP
SOIC
SOIC
Drawing
OPA27GP
OPA27GU
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
P
D
D
P
D
D
8
8
8
8
8
8
50
100
2500
50
None
None
None
None
None
None
Call TI
Level-NA-NA-NA
CU NIPDAU Level-2-220C-1 YEAR
CU NIPDAU Level-2-220C-1 YEAR
OPA27GU/2K5
OPA37GP
Call TI
Level-NA-NA-NA
OPA37GU
100
2500
CU SNPB
CU SNPB
Level-2-220C-1 YEAR
Level-2-220C-1 YEAR
OPA37GU/2K5
(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 - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
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.
Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry 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
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
MECHANICAL DATA
MPDI001A – JANUARY 1995 – REVISED JUNE 1999
P (R-PDIP-T8)
PLASTIC DUAL-IN-LINE
0.400 (10,60)
0.355 (9,02)
8
5
0.260 (6,60)
0.240 (6,10)
1
4
0.070 (1,78) MAX
0.325 (8,26)
0.300 (7,62)
0.020 (0,51) MIN
0.015 (0,38)
Gage Plane
0.200 (5,08) MAX
Seating Plane
0.010 (0,25) NOM
0.125 (3,18) MIN
0.100 (2,54)
0.021 (0,53)
0.430 (10,92)
MAX
0.010 (0,25)
M
0.015 (0,38)
4040082/D 05/98
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-001
For the latest package information, go to http://www.ti.com/sc/docs/package/pkg_info.htm
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