Features

• Sample Rate: 800ksps
• Power Dissipation: 150mW
• 81.5dB S/(N + D) and 93dB THD
• No Missing Codes
• No Pipeline Delay
• Nap and Sleep Shutdown Modes
• Operates with 2.5V Internal 15ppm/°C Reference or External Reference
• True Differential Inputs Reject Common Mode Noise
• 20MHz Full-Power Bandwidth Sampling
• Bipolar Input Range: ±2.5V
• 28-Pin SSOP and SO Packages

Typical Application

Description

The LTC1419 is a 1µs, 800ksps, 14-bit sampling A/D converter that draws only 150mW from ±5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a precision reference. Two digitally selectable power shutdown modes provide flexibility for low power systems.

The LTC1419 has a full-scale input range of ±2.5V. Outstanding AC performance includes 81.5dB S/(N + D) and 93dB THD with a 100kHz input; 80dB S/(N + D) and 86dB THD at the Nyquist input frequency of 400kHz.

The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 20MHz bandwidth. The 60dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.

The ADC has a µP compatible, 14-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.

Third Party Vendor Availability

Linear Technology partners with third party vendors who assemble and test packaged products with LTC RH Dice inside.