Inside

• Optoislated feedback amplifier with 1.24 V precision voltage reference
• EVM available for TLC320AD50 DSP analog interface
• 300 DPI linear sensor array with hold
• Precision Hi-Speed Light-to-Voltage Converters
• Low-power rail-to-rail op amps in SOT-23
• High output drive rail-to-rail op amp consumes only 50 µA per channel
• New CD-based "Designer's Guide and Data Book" allows for powerful searches
• 2.5 V Power management for DSP systems
• EVM available for TLC320AD75C ADA converter
• Programmable gain select is added to TI's combo family
• Single chip interface solution for the 9-pin GeoPort™ host
• 400 Mbps, high-speed data transmission
• PCI1220/1250A: Industry-leading CardBus soltions for tomorrow's applications
• Universal Serial Bus (USB) hub solutions

Precision Hi-Speed Light-to-Voltage Converters

Product Features

• Integrated solution w/ photodiode and transimpedance amplifier
• High irradiance responsivity
    - TSL253: 60
       mV/(µW/cm2) typ
    - TSL254: 3.5
       mV/(µW/cm2) typ
  
• High bandwidth
    - TSL253: 7.5 µs typ (tr/tf)
    - TSL254: 2 µs typ (tr/tf)
  
• Characterized for operation from –25°C to 85°C

The TSL253 and TSL254 are the latest additions to the optoelectronics family of precision high-speed light-to-voltage converters. The TSL253 and TSL254, each integrates a 1-mm square photodiode and a transimpedance amplifier (feedback resistor of 16 M for TSL253 and 1 M for TSL254). Utilizing advanced silicon-gate LinCMOS™ technology, these new devices offer improved amplifier offset-voltage stability and low power consumption.

These devices provide high speed and high sensitivity at a low cost-to-performance ratio providing cost effective solutions for applications such as lighting controls, proximity sensors, and light metering. The TSL253 and TSL254 offer added benefits over discrete solutions to suit your light sensor needs. These added benefits include:

• Low dark (offset) voltage, 10 mV, max – high dynamic range
• Single supply operation – simplified design for ease of use
• Low supply current, 600 µA, typ – well-suited for portable/low power applications

The TSL253 and TSL254 are available in a compact 3-leaded clear plastic package for board savings and cost.

• TSL253
• TSL254