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Número de pieza | OPT301M | |
Descripción | INTEGRATED PHOTODIODE AND AMPLIFIER | |
Fabricantes | Burr-Brown Corporation | |
Logotipo | ||
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FPO
70%
OPT301
INTEGRATED PHOTODIODE
AND AMPLIFIER
FEATURES
q PHOTODIODE SIZE: 0.090 x 0.090 inch
(2.29 x 2.29mm)
q 1MΩ FEEDBACK RESISTOR
q HIGH RESPONSIVITY: 0.47A/W (650nm)
q IMPROVED UV RESPONSE
q LOW DARK ERRORS: 2mV
q BANDWIDTH: 4kHz
q WIDE SUPPLY RANGE: ±2.25 to ±18V
q LOW QUIESCENT CURRENT: 400µA
q HERMETIC TO-99
APPLICATIONS
q MEDICAL INSTRUMENTATION
q LABORATORY INSTRUMENTATION
q POSITION AND PROXIMITY SENSORS
q PHOTOGRAPHIC ANALYZERS
q SMOKE DETECTORS
2
1MΩ
40pF
4
75Ω 5
λ VO
81
OPT301
3
V+ V–
DESCRIPTION
The OPT301 is an opto-electronic integrated circuit
containing a photodiode and transimpedance
amplifier on a single dielectrically isolated chip. The
transimpedance amplifier consists of a precision FET-
input op amp and an on-chip metal film resistor. The
0.09 x 0.09 inch photodiode is operated at zero bias for
excellent linearity and low dark current.
The integrated combination of photodiode and
transimpedance amplifier on a single chip eliminates
the problems commonly encountered in discrete de-
signs such as leakage current errors, noise pick-up and
gain peaking due to stray capacitance.
The OPT301 operates over a wide supply range (±2.25
to ±18V) and supply current is only 400µA. It is
packaged in a hermetic TO-99 metal package with a
glass window, and is specified for the –40°C to 85°C
temperature range.
SPECTRAL RESPONSIVITY
Ultraviolet
0.5
Using Internal
0.4 1MΩ Resistor
0.3
Infrared
0.5
0.4
0.3
0.2 0.2
0.1 0.1
00
100 200 300 400 500 600 700 800 900 1000 1100
Wavelength (nm)
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
©1994 Burr-Brown Corporation
PDS-1228B
Printed in U.S.A. January, 1994
1 page TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±15V, λ = 650nm, unless otherwise noted.
NORMALIZED SPECTRAL RESPONSIVITY
1.0
(0.52A/W)
0.8
650nm
(0.47A/W)
0.6
0.4
0.2
0
100 200 300 400 500 600 700 800 900 1000 1100
Wavelength (nm)
VOLTAGE RESPONSIVITY vs RADIANT POWER
10
1
0.1
0.01
= 10MΩ
RF
R
=
F
1MΩ
=
100kΩ
R F = 10kΩ
RF
λ = 650nm
0.001
0.01
0.1 1 10 100
Radiant Power (µW)
1k
VOLTAGE RESPONSIVITY vs IRRADIANCE
10
1
0.1
0.01
0.001
0.001
= 10MΩ
RF
R
=
F
1MΩ
=
100kΩ
R F = 10kΩ
RF
λ = 650nm
0.01
0.1 1
Irradiance (W/m2)
10
100
VOLTAGE OUTPUT RESPONSIVITY vs FREQUENCY
10
RF = 10MΩ
RF = 3.3MΩ
λ = 650nm
1 RF = 1MΩ
RF = 330kΩ CEXT = 30pF
0.1 RF = 100kΩ CEXT = 90pF
0.01 RF = 33kΩ CEXT = 180pF
RF = 10kΩ CEXT = 350pF
0.001
100 1k
10k
Frequency (Hz)
100k
1M
6
60
50
40
30
20
10
0
0.45
DISTRIBUTION OF RESPONSIVITY
λ = 650nm
Distribution Totals
100%
Laboratory Test
Data
0.46
0.47 0.48
Responsivity (A/W)
0.49
0.5
1.0
0.8
0.6
0.4
0.2
0
0
RESPONSE vs INCIDENT ANGLE
θ
±20 ±40 ±60
Incident Angle (°)
1.0
0.8
0.6
0.4
0.2
0
±80
®
5 OPT301
5 Page R3
100kΩ
C2
0.1µF
A1
R2
1MΩ
2
R1
C1
0.1µF
1MΩ 4 1MΩ
40pF
λ
8
75Ω 5
OPT301
20dB/decade
VO
f–3dB =
1MΩ
R3(2πR2C2)
FIGURE 12. DC Restoration Rejects Unwanted Steady-State Background Light.
1/2
REF200 100µA
λ
21
1MΩ
4
40pF
2N2222
75Ω 5
8
R1
22.5kΩ
OPT301
IN4148
3
R2
65Ω
100µA
1/2
REF200
10V to 36V
20kΩ
4-20mA
(4mA Dark)
Calculations shown provide a dark output of 4mA.
Output is 20mA at a photodiode current of
ID max. Values shown are for ID max max = 1µA.
FIGURE 13. 4-20mA Current-Loop Transmitter.
1.014 X 106
R1 = (1 – 2500 ID max) – 994,000Ω
26,000
R2 =
– 26,000Ω
(1 – 2500 ID max)
6
®
11 OPT301
11 Page |
Páginas | Total 11 Páginas | |
PDF Descargar | [ Datasheet OPT301M.PDF ] |
Número de pieza | Descripción | Fabricantes |
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