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The OPT301 is an opto-electronic integrated circuit. International Airport Industrial Park. Bandwidth

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transimpedance amplifier on a single chip eliminates

●  LOW QUIESCENT CURRENT: 400µA              the problems commonly encountered in discrete de-

signs such as leakage current errors, noise pick-up and

●  HERMETIC TO-99   gain peaking due to stray capacitance.

The OPT301 operates over a wide supply range (±2.25

   APPLICATIONS                               to ±18V) and supply current is only 400µA. It is

packaged in a hermetic TO-99 metal package with a

●  MEDICAL INSTRUMENTATION

glass window, and is specified for the –40°C to 85°C

●  LABORATORY INSTRUMENTATION              temperature range.

●  POSITION AND PROXIMITY SENSORS

●  PHOTOGRAPHIC ANALYZERS

●  SMOKE DETECTORS

                                                                                    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

SPECIFICATIONS

ELECTRICAL

At TA = +25°C, VS = ±15V, λ = 650nm, internal 1MΩ feedback resistor, unless otherwise noted.

PARAMETER

CONDITIONS

OPT301M

UNITS

MIN

TYP

MAX

RESPONSIVITY

Photodiode Current

650nm

0.47

A/W

Voltage Output

650nm

0.47

V/µW

vs Temperature

200

ppm/°C

Unit-to-Unit Variation

650nm

±5

%

Nonlinearity(1)

FS Output = 10V

0.01

% of FS

Photodiode Area

(0.090 x 0.090in)

0.008

in2

(2.29 x 2.29mm)

5.2

mm2

DARK ERRORS, RTO(2)

Offset Voltage, Output

±0.5

±2

mV

vs Temperature

±10

µV/°C

vs Power Supply

VS = ±2.25V to ±18V

10

100

µV/V

Voltage Noise

Measured BW = 0.1 to 100kHz

160

µVrms

RESISTOR—1MΩ Internal

Resistance

1

MΩ

Tolerance

±0.5

±2

%

vs Temperature

50

ppm/°C

FREQUENCY RESPONSE

Bandwidth, Large or Small-Signal, –3dB

4

kHz

Rise Time, 10% to 90%

90

µs

Settling Time, 1%

FS to Dark

240

µs

0.1%

FS to Dark

350

µs

0.01%

FS to Dark

900

µs

Overload Recovery Time

100% overdrive, VS = ±15V

240

µs

100% overdrive, VS = ±5V

500

µs

100% overdrive, VS = ±2.25V

1000

µs

OUTPUT

Voltage Output

RL = 10kΩ

(V+) – 1.25

(V+) – 0.65

V

RL = 5kΩ

(V+) – 2

(V+) – 1

V

Capacitive Load, Stable Operation

10

nF

Short-Circuit Current

±18

mA

POWER SUPPLY

Specified Operating Voltage

±15

V

Operating Voltage Range

±2.25

±18

V

Quiescent Current

IO = 0

±0.4

±0.5

mA

TEMPERATURE RANGE

Specification

–40

+85

°C

Operating/Storage

–55

+125

°C

Thermal Resistance, θJA

200

°C/W

NOTES: (1) Deviation in percent of full scale from best-fit straight line. (2) Referred to Output. Includes all error sources.

PHOTODIODE SPECIFICATIONS

At TA = +25°C, unless otherwise noted.

PARAMETER

CONDITIONS

Photodiode of OPT30

1

UNITS

MIN

TYP

MAX

Photodiode Area

(0.090 x 0.090in)

0.008

in2

(2.29 x 2.29mm)

5.1

mm2

Current Responsivity

650nm

0.47

A/W

Dark Current

VD = 0V(1)

500

fA

vs Temperature

doubles every 10°C

Capacitance

VD = 0V(1)

4000

pF

NOTE: (1) Voltage Across Photodiode.

SPECIFICATIONS (CONT)

              ELECTRICAL                                                                                   Op Amp Section of OPT301(1)

PARAMETER

CONDITIONS

OPT301 Op Amp

UNITS

MIN

TYP

MAX

INPUT

Offset Voltage vs Temperature vs Power Supply

Input Bias Current vs Temperature

VS = ±2.25V to ±18V

±0.5

±5

10

1

doubles every 10°C

mV

µV/°C µV/V pA

NOISE

Input Voltage Noise

Voltage Noise Density, f=10Hz f=100Hz f=1kHz

Current Noise Density, f=1kHz

30

25

15

0.8

nV/√Hz nV/√Hz nV/√Hz fA/√Hz

INPUT VOLTAGE RANGE

Common-Mode Input Range

Common-Mode Rejection

±14.4

106

V dB

INPUT IMPEDANCE

Differential

Common-Mode

1012||3 1012||3

Ω||pF

Ω||pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain

120

dB

FREQUENCY RESPONSE

Gain-Bandwidth Product

Slew Rate

Settling Time 0.1%

0.01%

380 0.5

4

5

kHz

V/µs µs µs

6

OUTPUT

Voltage Output

RL = 10kΩ

(V+) – 1.25

(V+) – 0.65

V

RL = 5kΩ

(V+) – 2

(V+) – 1

V

Short-Circuit Current

±18

mA

POWER SUPPLY

Specified Operating Voltage

±15

V

Operating Voltage Range

±2.25

±18

V

Quiescent Current

IO = 0

±0.4

±0.5

mA

At TA = +25°C, VS = ±15V, unless otherwise noted.

NOTE: (1) Op amp specifications provided for information and comparison only.

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.

PACKAGE DRAWING

PRODUCT

PACKAGE

NUMBER(1)

OPT301M

8-Pin TO-99

001-1

ELECTROSTATIC DISCHARGE SENSITIVITY

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

PACKAGE INFORMATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltage ................................................................................... ±18V Input Voltage Range (Common Pin) .................................................... ±VS Output Short-Circuit (to ground)............................................... Continuous Operating Temperature................................................... –55°C to +125°C Storage Temperature ...................................................... –55°C to +125°C Junction Temperature .................................................................... +125°C

Lead Temperature (soldering, 10s)................................................ +300°C

NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.


TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = ±15V, λ = 650nm, unless otherwise noted.

NORMALIZED SPECTRAL RESPONSIVITY

Wavelength (nm)


VOLTAGE RESPONSIVITY vs RADIANT POWER

Radiant Power (µW)


VOLTAGE RESPONSIVITY vs IRRADIANCE

6

Irradiance (W/m2)

DISTRIBUTION OF RESPONSIVITY

Responsivity (A/W)

VOLTAGE OUTPUT RESPONSIVITY vs FREQUENCY

Frequency (Hz)

0                     ±20                   ±40                  ±60                   ±80

Incident Angle (°)


TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = ±15V, λ = 650nm, unless otherwise noted.

OUTPUT NOISE VOLTAGE

                      QUIESCENT CURRENT vs TEMPERATURE                                                                         vs MEASUREMENT BANDWIDTH

          –75      –50        –25           0         25        50        75       100      125        1         10       100                                    1k              10k             100k

                                       Temperature (°C)                                                                                                    Measurement Bandwidth (Hz)

                     SMALL-SIGNAL DYNAMIC RESPONSE                                                                              LARGE-SIGNAL DYNAMIC RESPONSE

                                        100µs/div                                                                                                                                 100µs/div

Measurement Bandwidth (Hz)


APPLICATIONS INFORMATION

Figure 1 shows the basic connections required to operate the OPT301. Applications with high-impedance power supplies may require decoupling capacitors located close to the device pins as shown. Output is zero volts with no light and increases with increasing illumination.

If your light source is focused to a small area, be sure that it is properly aimed to fall on the photodiode. If a narrowly focused light source were to miss the photodiode area and fall only on the op amp circuitry, the OPT301 would not perform properly. The large (0.090 x 0.090 inch) photodiode area allows easy positioning of narrowly focused light sources. The photodiode area is easily visible—it appears


FIGURE 1. Basic Circuit Connections.

Photodiode current, ID, is proportional to the radiant power or flux (in watts) falling on the photodiode. At a wavelength of 650nm (visible red) the photodiode Responsivity, RI, is approximately 0.45A/W. Responsivity at other wavelengths very dark compared

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Рязанский государственный радиотехнический университет (РГРТУ)
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