The OPT101 is a monolithic photodiode with on-chip transimpedance amplifier. The integrated combination of photodiode and transimpedance amplifier on a single chip eliminates the problems commonly encountered in discrete designs, such as leakage current errors, noise pick-up, and gain peaking as a result of stray capacitance. Output voltage increases linearly with light intensity. The amplifier is designed for single or dual power-supply operation.
The 0.09 inch × 0.09 inch (2.29 mm × 2.29 mm) photodiode operates in the photoconductive mode for excellent linearity and low dark current.
The OPT101 operates from 2.7 V to 36 V supplies and quiescent current is only 120 μA. This device is available in clear plastic 8-pin PDIP, and J-lead SOP for surface mounting. The temperature range is 0°C to 70°C.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
OPT101 | PDIP (8) | 9.53 mm × 6.52 mm |
SOP (8) | 9.52 mm × 6.52 mm |
Changes from A Revision (October 2003) to B Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | VS | Power | Power supply of device. Apply 2.7 V to 36 V relative to –V pin. |
2 | –In | Input | Negative input of op amp and the cathode of the photodiode. Either do not connect, or apply additional op amp feedback. |
3 | –V | Power | Most negative power supply. Connect to ground or a negative voltage that meets the recommended operating conditions. |
4 | 1MΩ Feedback | Input | Connection to internal feedback network. Typically connect to Output, pin 5. |
5 | Output | Output | Output of device. |
6 | NC | — | Do not connect |
7 | NC | — | Do not connect |
8 | Common | Input | Anode of the photodiode. Typically, connect to ground. |