The OPT202 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 OPT202 operates over a wide supply range (±2.25
to
±18V)
and supply current is only 400µA. It is
packaged in a transparent plastic 8-pin DIP or 5-pin
SIP, specified for the 0°C to +70°C temperature range
as well as a hermetic ceramic 8-pin DIP with a glass
window, specified for the –40°C to +85°C tempera-
ture range.
SPECTRAL RESPONSIVITY
Blue
APPLICATIONS
q
MEDICAL INSTRUMENTATION
q
LABORATORY INSTRUMENTATION
q
POSITION AND PROXIMITY SENSORS
q
PHOTOGRAPHIC ANALYZERS
q
SMOKE DETECTORS
Ultraviolet
Red
2 (Pin available on DIP only)
1MΩ
Green
Yellow
Infrared
Voltage Output (V/µW)
4 (4)
0.5
0.4
0.3
0.2
0.1
0
100
Using Internal
1MΩ Resistor
0.5
0.4
0.3
0.2
0.1
0
700 800 900 1000 1100
3pF
175Ω
λ
OPT202
(1)
8 (2) 1
V+
(SIP)
(3) 3
V–
DIP
5
(5)
V
O
200 300 400 500
600
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
NOTES: (1) Deviation in percent of full scale from best-fit straight line. (2) Referred to Output. Includes all error sources.
®
OPT202
2
SPECIFICATIONS
ELECTRICAL
(CONT)
Op Amp Section of OPT202
(1)
OPT202 Op Amp
At T
A
= +25°C, V
S
=
±15V,
unless otherwise noted.
PARAMETER
INPUT
Offset Voltage
vs Temperature
vs Power Supply
Input Bias Current
vs Temperature
NOISE
Input Voltage Noise
Voltage Noise Density, f = 10Hz
f = 100Hz
f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Input Range
Common-Mode Rejection
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time 0.1%
0.01%
OUTPUT
Voltage Output
Short-Circuit Current
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current
CONDITIONS
MIN
TYP
±0.5
±5
10
1
doubles every 10°C
MAX
UNITS
mV
µV/°C
µV/V
pA
V
S
=
±2.25V
to
±18V
30
25
15
0.8
±14.4
106
10
12
||3
10
12
||3
nV/√Hz
nV/√Hz
nV/√Hz
fA/√Hz
V
dB
Ω
|| pF
Ω
|| pF
dB
120
16
6
4
5
MHz
V/µs
µs
µs
V
V
mA
R
L
= 10kΩ
R
L
= 5kΩ
(V+) – 1.25
(V+) – 2
(V+) – 1
(V+) – 1.5
±18
±15
±400
±2.25
I
O
= 0
±18
±500
V
V
µA
NOTE: (1) Op amp specifications provided for information and comparison only.
PHOTODIODE SPECIFICATIONS
At T
A
= +25°C, unless otherwise noted.
Photodiode of OPT202
PARAMETER
Photodiode Area
Current Responsivity
Dark Current
vs Temperature
Capacitance
NOTE: (1) Voltage Across Photodiode.
CONDITIONS
(0.090
x
0.090in)
(2.29
x
2.29mm)
650nm
V
D
= 0V
(1)
V
D
= 0V
(1)
MIN
TYP
0.008
5.2
0.45
500
doubles every 10°C
600
MAX
UNITS
in
2
mm
2
A/W
fA
pF
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
OPT202
PIN CONFIGURATIONS
Top View
DIP
V+
–In
V–
1MΩ Feedback
1
2
(1)
8
7
6
5
Common
NC
NC
Output
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with ap-
propriate 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
specifications.
3
4
NOTE: (1) Photodiode location.
Top View
SIP
Common
V+
V–
1MΩ Feedback
Output
1
2
3
4
5
(1)
MOISTURE SENSITIVITY
AND SOLDERING
Clear plastic does not contain the structural-enhancing fillers
used in black plastic molding compound. As a result, clear
plastic is more sensitive to environmental stress than black
plastic. This can cause difficulties if devices have been stored
in high humidity prior to soldering. The rapid heating during
soldering can stress wire bonds and cause failures. Prior to
soldering, it is recommended that plastic devices be baked-out
at 85°C for 24 hours.
The fire-retardant fillers used in black plastic are not compat-
ible with clear molding compound. The OPT202 plastic
packages cannot meet flammability test, UL-94.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ...................................................................................
±18V
Input Voltage Range (Common Pin) ....................................................
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