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Спецификация OPA642 изготовлена «Burr-Brown» и имеет функцию, называемую «Wideband / Low Distortion / Low Gain OPERATIONAL AMPLIFIER». |
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Детали детали
Номер произв | OPA642 |
Описание | Wideband / Low Distortion / Low Gain OPERATIONAL AMPLIFIER |
Производители | Burr-Brown |
логотип |
15 Pages
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®
OPA642
OOPPAA66452 8
OPA642
Wideband, Low Distortion, Low Gain
OPERATIONAL AMPLIFIER
FEATURES
q LOW DISTORTION: –95dBc at 5MHz
q GAIN OF +1 BANDWIDTH: 400MHz
q AVAILABLE IN SOT23-5 PACKAGE
q HIGH OPEN LOOP GAIN: 95dB
q HIGH COMMON-MODE REJECTION: 90dB
q FAST 12-BIT SETTLING: 13ns (0.01%)
q LOW NOISE: 2.7nV/√Hz
q HIGH OUTPUT CURRENT: ±60mA
q VERY LOW DIFF GAIN/PHASE ERROR:
0.007%/0.008°
APPLICATIONS
q ADC/DAC BUFFER AMPLIFIER
q LOW DISTORTION IF AMPLIFIER
q HIGH RESOLUTION IMAGING
q MEDICAL IMAGING
q LOW NOISE PREAMPLIFIER
q HIGH CMR DIFFERENCING AMPLIFIER
q TEST INSTRUMENTATION
q PROFESSIONAL AUDIO
DESCRIPTION
The OPA642 provides a level of speed and dynamic
range previously unattainable in a monolithic op amp.
Using a unity gain stable voltage feedback architec-
ture with two internal gain stages, the OPA642 achieves
exceptionally low harmonic distortion over a wide
frequency range. The “classic” differential input pro-
vides all the familiar benefits of precision op amps,
such as bias current cancellation and very low invert-
ing current noise compared with wideband current
feedback op amps. Fast settling time, excellent differ-
ential gain/phase performance, low voltage noise and
high output current drive make the OPA642 ideal for
most high dynamic range applications.
Unity gain stability makes the OPA642 particularly
suitable for low gain differential amplifiers,
transimpedance amplifiers, gain of +2 video line driv-
ers, wideband integrators and low distortion ADC buff-
ers. Where higher gain or even lower harmonic distor-
tion is required, consider the OPA643—a higher gain-
bandwidth and lower noise version of the OPA642
+5V
1Vp-p
5MHz
+5V
OPA642
2Vp-p 0.1µF
5kΩ
REFT
0.1µF
clk
ADS804
24Ω
10MSPS
Analog
Input
12-Bit
10MSPS
100pF
Measured
80dB SFDR
–5V
402Ω
402Ω
5kΩ
REFB
0.1µF
High Dynamic Range 10MSPS Digitizer
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
©1993 Burr-Brown Corporation
PDS-11190F
OPA642Printed in U.S.A. February, 1998
®
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SPECIFICATIONS
ELECTRICAL
At TA = +25°C, VS = ±5V, RL = 100Ω, RF = 402Ω, unless otherwise noted. RF = 25Ω for a gain of +1.
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
Average Drift
Power Supply Rejection (PSR)
INPUT BIAS CURRENT
Input Bias Current
Over Specified Temperature
Input Offset Current
Over Specified Temperature
CONDITIONS
VS = ±4.5 to ±5.5V
VCM = 0V
VCM = 0V
OPA642P, U, N
MIN TYP
MAX
±1.5
4
65 85
±4
25 45
70
0.1 2.0
3.0
NOISE
Input Voltage Noise
Noise Density: f ≥ 1MHz
Integrated Voltage Noise, BW = 100Hz to 100MHz
Input Bias Current Noise Density
f ≥ 1MHz
INPUT VOLTAGE RANGE
Common-Mode Input Range
Over Temperature
Common-Mode Rejection (CMR)
INPUT IMPEDANCE
Differential
Common-Mode
VCM = ±0.5V
OPEN-LOOP GAIN
Open-Loop Voltage Gain (AOL)
Over Specified Temperature
VO = ±2V, RL = 100Ω
FREQUENCY RESPONSE
Closed-Loop Response
Gain Bandwidth Product (GBP)
Slew Rate(1)
At Minimum Specified Temperature
Settling Time: 0.01%
0.1%
1%
Spurious Free Dynamic Range (SFDR)
Diff. Gain Error at 3.58MHz, G = +2V/V
Diff. Phase Error at 3.58MHz, G = +2V/V
OUTPUT
Voltage Output
Over Specified Temperature
Voltage Output
Over Specified Temperature
Current Output, +25°C
Over Specified Temperature
Closed-Loop Output Resistance
Gain = +1V/V
Gain = +2V/V
Gain = +5V/V
Gain = +10V/V
G = +1, 2V Step
G = +1, 2V Step
G = +1, 1V Step
G = +1, 1V Step
G = +1, 1V Step
G = +1, f = 5MHz
VO = 2Vp-p, RL = 100Ω
VO = 0V to 1.4V, RL = 150Ω
VO = 0V to 1.4V, RL = 150Ω
No Load
RL = 100Ω
0.1MHz, G = +1V/V
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current
Over Specified Temperature
TMIN to TMAX
TEMPERATURE RANGE
Specification: P, U, N, PB, UB, NB
Thermal Resistance
P, PB 8-Pin DIP
U, UB 8-Pin SO-8
N, NB 5-Pin SOT23-5
Ambient
θJA, Junction-to-Ambient
±2.75
±2.5
65
80
80
±3.0
±2.5
±40
±35
±4.5
–40
2.7
27
2.8
±3.0
90
11 || 1
650 || 1
95
400
150
45
21
210
380
340
13
11.5
3.5
92
0.007
0.008
±3.5
±2.75
±60
0.01
±5
±20
100
125
150
±5.5
±25
±26
+85
T Indicates same specification as for OPA642P, U, N.
NOTE: (1) Slew rate is rate of change from 10% to 90% of output voltage step.
OPA642PB, UB, NB
MIN
TYP
MAX
±0.5
±1.0
2
73 95
TT
TT
TT
TT
UNITS
mV
µV/°C
dB
µA
µA
µA
µA
T nV/√Hz
T µVrms
T pA/√Hz
TT
T
80 T
V
V
dB
T kΩ || pF
T kΩ || pF
85 98
T
dB
dB
T MHz
T MHz
T MHz
T MHz
T MHz
T V/µs
T V/µs
T ns
T ns
T ns
95 dBc
T%
T degrees
T
T
T
TT
±50 ±65
±40
T
V
V
V
V
mA
mA
Ω
T
T
±16 T
T
T
T
V
V
mA
mA
T T °C
°C/W
T °C/W
T °C/W
T °C/W
®
OPA642
2
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ABSOLUTE MAXIMUM RATINGS
Supply .......................................................................................... ±6.0VDC
Internal Power Dissipation(1) .................................. See Thermal Analysis
Differential Input Voltage .................................................................. ±1.2V
Input Voltage Range ............................................................................ ±VS
Storage Temperature Range: P, PB, U, UB, N, NB ..... –40°C to +125°C
Lead Temperature (soldering, 10s) .............................................. +300°C
(soldering, SO-8 3s) ....................................... +260°C
Junction Temperature (TJ ) ............................................................ +175°C
NOTE: (1) Packages must be derated based on specified θ JA. Maximum
TJ must be observed.
ELECTROSTATIC
DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from per-
formance degradation to complete device failure. Burr-
Brown Corporation recommends that all integrated circuits
be handled and stored using appropriate ESD protection
methods.
ESD damage can range from subtle performance degrada-
tion 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
published specifications.
PIN CONFIGURATION
Top View
NC 1
Inverting Input 2
Non-Inverting Input 3
–VS1 4
DIP/SO-8
8 +VS2(1)
7 +VS1
6 Output
5 –VS2(1)
Output 1
–VS 2
Non-Inverting Input 3
SOT23-5
5 +VS
4 Inverting Input
NOTE: (1) Making use of all four power supply pins is recommended,
although not required. Using these four pins, instead of just pins 4 and 7, will
lower the power supply impedance improving distortion.
PACKAGE/ORDERING INFORMATION
PRODUCT
PACKAGE
PACKAGE
DRAWING
NUMBER(1)
TEMPERATURE
RANGE
PACKAGE
MARKING(2)
ORDERING
NUMBER(3)
OPA642U
OPA642UB
OPA642N
OPA642NB
OPA642P
OPA642PB
SO-8 Surface Mount
SO-8 Surface Mount
5-pin SOT23-5
5-pin SOT23-5
8-Pin Plastic DIP
8-Pin Plastic DIP
182
182
331
331
006
006
–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
–40°C to +85°C
OPA642U
OPA642UB
A42
A42B
OPA642P
OPA642PB
OPA642U
OPA642UB
OPA642N-250
OPA642N-3k
OPA642NB-250
OPA642NB-3k
OPA642P
OPA642PB
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) The “B” grade of the SO-8 and
DIP packages will be marked with a “B” by pin 8. The “B” grade of the SOT23-5 will be marked with a “B” near pins 3 and 4. (3) The SOT23-5 is only available on a 7"
tape and reel (e.g. ordering 250 pieces of “OPA642N-250” will get a single 250 piece tape and reel. Ordering 3000 pieces of “OPA642N-3k” will get a single 3000 piece
tape and reel). Please refer to Appendix B of Burr-Brown IC Data Book for detailed Tape and Reel Mechanical information.
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.
®
3 OPA642
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