LTC1415IG

12Bit, 1.25MSPS, 55mW Sampling A/D Converter

DESCRIPTION

The LTC®1415 is a 700ns, 1.25Msps, 12-bit sampling A/D converter that draws only 55mW from a single 5V supply. This easy-to-use device includes a high dynamic range sample-and-hold, precision reference and a trimmed internal clock. Two power shutdown modes provide flexibility for low power systems.

The LTC1415’s full-scale input range is 4.096V. Low linearity errors ±0.35LSB INL, ±0.25LSB DNL make it ideal for imaging systems. Outstanding AC performance includes 72dB S/N + D and 80dB THD with an input frequency of 100kHz.

The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 18MHz bandwidth. The 60dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.

FEATURES

■ 1.25Msps Sample Rate

■ Single 5V Supply

■ Power Dissipation: 55mW

■ Nap and Sleep Power Shutdown Modes

■ ±0.35LSB INL and ±0.25LSB DNL

■ 72dB S/N + D and 80dB THD at 100kHz

■ External or Internal Reference Operation

■ True Differential Inputs Reject Common Mode Noise

■ Input Range: 4.096V 1mV/LSB

■ 28-Pin SSOP and SO Packages

APPLICATIONS

■ High Speed Data Acquisition

■ Imaging Systems

■ Digital Signal Processing

■ Multiplexed Data Acquisition Systems

■ Telecommunications