TSL257
TSL257 is High-Sensitivity Light-to-Voltage Converter manufactured by ams.
Description
The TSL257 is a high-sensitivity low-noise light-to-voltage optical converter that bines 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 320MΩ. 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 Ro HS pliant.
Ordering Information and Content Guide appear at end of datasheet.
Figure 1: Added Value of Using TSL257
Key Benefits & Features
The benefits and features of TSL257, High-Sensitivity Light-to-Voltage Converter are listed below:
Benefits
Features
- Enables Extremely Fast Response to Change
- Single Photo-Diode and Trans Impedance Architecture
- Enables Fast Response to Visible Light in Range of 400nm to 700nm Wavelengths
- 160μs Output Rise-Time Response
- Provides for High Sensitivity to Detect a Small
- High Irradiance Responsivity:
Change in Light
Typically 1.68V/(μW/cm2) at λp = 645nm
- Provides Additional Sensitivity Advantages
- 2x Gain Lens
- Provides Full Dynamic Range
- Rail-To-Rail Output Swing
- Converts Light Intensity to Output Voltage
- Monolithic Silicon IC Containing Photodiode, Operational
Amplifier, and Feedback ponents
- High Sensitivity
- Single Voltage Supply Operation (2.7V to 5.5V)
- Low Noise (200μVrms Typ to 1k Hz)
- High Power-Supply Rejection (35d B at 1k Hz)
- pact 3-Leaded Plastic Package
- Ro HS pliant (-LF Package Only) ams Datasheet [v1-01] 2018-May-04
Page 1 Document Feedback
Figure 2: TSL257 Block Diagram
- General Description
Functional Block Diagram
The functional blocks of this device are shown below:
- Voltage
+
Output
Page 2 Document Feedback ams Datasheet [v1-01] 2018-May-04
- Pin Assignment
Pin...
