LM98640

LM98640 www.ti.com SNAS596A – JUNE 2012 – REVISED MAY 2013 LM98640 Dual Channel, 14-Bit, 40 MSPS Analog Front End with LVDS Output Check for Samples: LM98640 FEATURES 1 2 Seialized LVDS Outputs LVDS Input Clock CDS or S/H Processing for CCD or CIS Sensors Programmable Analog Gain for Each Channel Programmable Analog Offset Correction Programmable Input Clamp Voltage Programmable Sampling Edge up to 1/64th Pixel Period KEY SPECIFICATIONS Input Level: 2.85 Volts ADC Resolution: 14 Bit ADC Sampling Rate: 5 MSPS to 40 MSPS INL @ 15 MHz: ±3.5 LSB CDS or S/H Gain: 0 dB or 6 dB PGA Gain Steps: 256 Steps PGA Gain Range: -3 dB to 18 dB Coarse DAC Resolution: ±8 Bits Coarse DAC Range: ±250 mV Fine DAC Resolution: ±8 Bits Fine DAC Range: ±5 mV Noise Floor: -79 dB Crosstalk: -80dB Power Consumption PGA 1-4x Gain: – 125 mW per Channel (15 MSPS) – 140 mW per Channel (25 MSPS) PGA 1-8x Gain: – 125 mW per Channel (15 MSPS) – 178 mW per Channel (40 MSPS) Supply Voltages: – 3.3V Nominal (3.15V to 3.45V Range) – 1.8V Nominal (1.7V to 1.9V Range) APPLICATIONS Focal Plane Electronics Imaging Attitude Control Systems Assembly Line Vision Systems Factory Automation Vision Systems High-speed Document Scanner Multi- Function Peripherals DESCRIPTION The LM98640 is a fully integrated, high performance 14-bit, 5 MSPS to 40 MSPS signal processing solution for image processing applications. The Serial LVDS Output format performs well during i...