TSL257 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – HIGHSENSITIVITY LIGHTTOVOLTAGE CONVERTER

r
r
D Converts Light Intensity to Output Voltage
D Monolithic Silicon IC Containing
Photodiode, Operational Amplifier, and
Feedback Components
D High Sensitivity
D Single Voltage Supply Operation (2.7 V to
5.5 V)
D Low Noise (200 μVrms Typ to 1 kHz)
D Rail-to-Rail Output
D High Power-Supply Rejection (35 dB at
1 kHz)
D Compact 3-Leaded Plastic Package
D RoHS Compliant (−LF Package Only)
TSL257
HIGH-SENSITIVITY
LIGHT-TO-VOLTAGE CONVERTER
TAOS023E − SEPTEMBER 2007
PACKAGE S
SIDELOOKER
(FRONT VIEW)
PACKAGE SM
SURFACE MOUNT
SIDELOOKER
(FRONT VIEW)
123
GND V_DD OUT
Description
123
GND V_DD OUT
The TSL257 is a high-sensitivity low-noise light-to-voltage optical converter that combines a photodiode and
a transimpedance amplifier on a single monolithic CMOS integrated circuit. Output voltage is directly
proportional to light intensity (irradiance) on the photodiode. The TSL257 has a transimpedance gain of 320 MΩ.
The device has improved offset voltage stability and low power consumption and is supplied in a 3-lead clear
plastic sidelooker package with an integral lens. When supplied in the lead (Pb) free package, the device is
RoHS compliant.
Functional Block Diagram
−
Voltage
+
Output
Available Options
DEVICE
TSL257
TSL257
TSL257
T_A
0°C to 70°C
0°C to 70°C
0°C to 70°C
PACKAGE − LEADS
3-lead Sidelooker
3-lead Sidelooker — Lead (Pb) Free
3-lead Surface-Mount Sidelooker — Lead (Pb) Free
PACKAGE DESIGNATOR ORDERING NUMBER
S
TSL257
S
TSL257−LF
SM
TSL257SM−LF
Terminal Functions
TERMINAL
NAME NO.
GND
1
OUT
3
V_DD
2
DESCRIPTION
Ground (substrate). All voltages are referenced to GND.
Output voltage
Supply voltage
The LUMENOLOGY r Company
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972_r) 673-0759
www.taosinc.com
Copyright E 2007, TAOS Inc.
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