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OP27AN/a6000avaiLow Noise, Precision Operational Amplifier


OP27 ,Low Noise, Precision Operational AmplifierFeatures . IOuV Input Offset Voltage . O.2p.V/'C Drift . anvNE Input Noise Voltage (1kHz) . EOn ..
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OP27
Low Noise, Precision Operational Amplifier
19-3731; Rev tt 10192
General Description
The OP27/OP37 precision operational amplifiers provide
lower noise and higher speed with the same input offset
and drift specifications as the OP07. Both parts have a
10p1/ offset, U2iNi"C drift, and 1.8 million gain. Coupled
with a Iow-voltage noise of 3.5nV/W at 10Hz and a low 1/f
noise corner frequency of 2.7Hz, the OP27/OP37 are op-
timized for accurate amplification of Iow-level signals. The
OP27 features an 8MHz gain-bandwidth product and a
2.8V/ps slew rate. For applications demanding higher
speed, the OP37 has a 63MHz gain-bandwidth product,
17V/ps slew rate, and is stable at gains of five or more.
An output swing of A10V into 600n together with low
distortion make the OP27/OP37 ideal for professional audio
applications.
For applications requiring greater precision or lower noise
than the OP27 or OP37, see the MAX427/MAX437 and
the MAX410/MAX412/MAX414 data sheets.
Applications
Low-Noise DC Amplifiers
Microphone Amplifiers
Precision Amplifiers
Tape-Head Preamplifiers
Thermocouple Amplifiers
Low-Level Signal Processing
Medical Instrumentation
Strain-Gauge Amplifiers
High-Accuracy Data Acquisition
Typical Application Circuit
2s)l'_yfL1f0,i)ClLfl,y1]
[Low-Noise Precision
(0peratiionall amplliifiers
Features
. 10W Input Offset Voltage
. 0.2pvrc Drift
. 3nV/‘IW Input Noise Voltage (1 kHz)
. BODVp-p Noise (0.1 Hz to 10Hz)
. 2.8V/us Slew Rate (OP27)
. 17V/ps Slew Rate (0P3)
. 8MHz Gain-Bandwidth Product (OP27)
t 63MHz GaIn-Bandwidth Product (OP37)
Ordering Information
PART TEMP. RANGE PIN-PACKAGE
OP27EP (Y'C to +70°C 8 Plastic DIP
OP27FP 0°C to +70''C 8 Plastic DIP
OP27GP -40°C to +85''C 8 Plastic DIP
OP27GS -40'C to +85°C 8 SO
OP27EZ -40°C to +85°C 8 CERDIP
OP27FZ -40°C to +85''C 8 CERDIP
OP27GZ -40°C to +85''C 8 CERDIP
OP27EJ -40''C to +850 8 TO-99
OP27FJ -40'C to +850 8 TO-99
Pin Configurations
Ordering Information continued on last page.
LOW-NOISEMICROPHONEPREAMPLIFIEH TOPVIEW
316k V 1009
IMPEDANCE lk . V
l/lil'"" -NVV BAL E E] BAL
CL Rp IN [E MAXIM El V+
= 30k OUTPUT 3 OP27
IN 6 OUT
(2 = ion TO 20052) 0P37
-GNV ll, 4 a NC
BLE DlP/SO
Pin Configurations continued on last page.
MAM3C19M Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at .
iQdO/AZQIICD
0P27/0P37
LowA)lloiise Precision
Operational Amplliifiiers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage .................................. 122V
Input Voltage (Note 1) ............................ t22V
Output Short-Circuit Duration .................. Continuous
Differential Input Voltage (Note 2) ..._...F...m_r_m_F. 10.7V
Differential Input Current (Note 2) ................. 125mA
Continuous Power Dissipation (TA = +70'C)
Plastic DIP (derale 9.09mW/" C above +70''C) ...... 727mW
SO (derate 5.88mW/' C above +70'C) ............ 471mW
CERDIP (derate 8.00mW/‘C above +70''C) ........ 640mW
TO-99 (derate 6.67mW/°C above +70'C) .......... 533mW
Operating Temperature Ranges:
OP27/OP37EP/FP ........................ 0°C to +70''C
OP27/OP37GJEZ/EJ/FZ/FJ ............... MO''C to +85''C
OP27/OP37AJBJC_ ................... -55°C to +125°C
Junction Temperature Range .............. -65''C to + 150''C
Storage Temperature Range .............. -65'C to +150°C
Lead Temperature (soldering, 10 sec) .............. +300''C
Note 1: For supply voltages less than 122V, the absolute maximum input voltage is equal to the supply voltage.
Note 2: OP27/OP37 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 10.7V. the input current should be limited to 25mA.
Stresses beyond those listed under "Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Vs = t15V, TA = +25"C, unless otherwise noted.)
OP27A/E OP27B/F OP27C/G
PARAMETER SYMBOL CONDITIONS OP37A/E 0P37B/F OP37C/G UNITS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
Input Offset Voltage (Note 3) Vos 10 25 20 60 30 100 “V
Long-Term Vos Stability
(Notes 4, 5) Vos/TIME 0.2 1.0 0.3 1.5 0.4 2.0 pV/Mo
Input Bias Current I3 110 140 112 155 115 180 nA
Input Offset Current Ios 7 35 9 50 12 75 nA
Input Voltage Range hm 111.0 112.3 111.0 112.3 111.0 112.3 V
Input Resistance -
Differential Mode (Note 6) RIN 1.3 6 0.94 5 0.7 4 Mn
Input Resistance -
Common Mode RINCM 3 2.5 2 Gn
Input Noise Voltage (Notes 5, 7) enp.p 0.1Hz to 10Hz 0.08 0.18 0.08 0.18 0.09 0.25 uVP-P
fo = 10Hz 3.5 5.5 3.5 5.5 3.8 8.0
lrr1glt/t)'ise"/oltage Density en fo = 301-12 3.1 4.5 3.1 4.5 3.3 5.6 nV/d-7z'
fo = 1kHz 3.0 3.8 3.0 3.8 3.2 4.5
fo = 10Hz 1.7 4.0 1.7 4.0 1.7
Input Noise-Current Density ' _
(Notes 5,8) In f0 - 30Hz 1.0 2.3 1.0 2.3 1.0 pA/W
fo = 1kHz 0.4 0.6 0.4 0.6 0.4 0.6
RL 2 210. V0 = 110V 1000 1800 1000 1800 700 1500
Large-Signal Voltage Gain Avo RL 2 Ikf2, V0 = 110V 800 1500 800 1500 400 1500 V/mV
5; 'c'6d)nil/fi=sj*1v' 250 700 250 700 200 500
. RL22k.Q 112.0 113.8 11201138 11151135
Output Voltage Swing Vo V
RLZ6OOQ 110.0 111.5 11001116 11001115
2 IMAXI/Vl
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