TDA8787A is a 10-bit, 3.0V, up to 18 Msps analog-to-digital interface for CCD cameras from Philips Semiconductors. The device includes a correlated double sampling circuit, a PGA, clamp loops and a low-power 10-bit ADC, together with its reference voltage regulator. The PGA gain and the ADC input clamp level are controlled via the serial interface. An additional DAC is provided for additional system controls. Its output voltage range is 1.0 V peak-to-peak which is available at pin OFDOUT.
The TDA8787A is a 10‑bit analog‑to‑digital converter designed for low‑power CCD camera systems. It features correlated double sampling, a programmable gain amplifier, an 8‑bit DAC for system control, and a 3‑wire serial interface for full programmability. Key performance includes up to 18 MHz sampling frequency, a PGA gain range of 36 dB, and a typical active power consumption of 170 mW at 2.7 V.
The device is supplied in a 48‑lead LQFP package and provides a comprehensive pinout for analog and digital supplies, clamp control, DAC output, standby control, and serial interface signals. Electrical specifications cover supply voltage ranges (2.7‑3.6 V), input voltage thresholds, and thermal characteristics, making it suitable for integration into compact camera electronics.
| ADC resolution | 10 bits |
|---|---|
| Maximum sampling frequency | 18 MHz |
| PGA gain range | 36 dB (0.1 dB steps) |
| Active power consumption | 170 mW at 2.7 V |
| Analog supply voltage | 2.7 V – 3.6 V |
| Digital supply voltage | 2.7 V – 3.6 V |
| Low‑level input voltage | 0 V – 0.6 V |
| High‑level input voltage | 2.2 V – 5.0 V |
The device can sample at up to 18 MHz.
It is fully programmable via a 3‑wire serial interface.
Typical active power consumption is 170 mW at a 2.7 V supply.
It is offered in a plastic low‑profile LQFP48 48‑lead package.