Features

• 1Msps Throughput
• ±1LSB INL (Maximum)
• Guaranteed 16-Bit, No Missing Codes
• Differential, Wide Common Mode Range Inputs
• 8-Channel Multiplexer with SoftSpan Input Ranges:
  ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V
  ±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V
• 94.4dB Single-Conversion SNR (Typical)
• −109dB THD (Typical) at f_IN = 2kHz
• 118dB CMRR, 125dB Active Crosstalk (Typical)
• Rail-to-Rail Input Overdrive Tolerance
• Programmable Sequencer with No-Latency Control
• Guaranteed Operation to 125°C
• Integrated Reference and Buffer (4.096V)
• SPI CMOS (1.8V to 5V) and LVDS Serial I/O
• No Pipeline Delay, No Cycle Latency
• 180mW Power Dissipation (Typical)
• 48-Lead (7mm × 7mm) LQFP Package

Typical Application

Description

The LTC®2335-16 is a 16-bit, low noise 8-channel multiplexed successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V low voltage supply, flexible high voltage supplies, and using the internal reference and buffer, this SoftSpan^TM ADC can be configured on a conversion-by-conversion basis to accept ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V signals on any channel. Alternately, the ADC may be programmed to cycle through a sequence of channels and ranges without further user intervention.

The wide input common mode range and 118dB CMRR of the LTC2335-16 analog inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. This input signal flexibility, combined with ±1LSB INL, no missing codes at 16 bits, and 94.4dB SNR, makes the LTC2335-16 an ideal choice for many high voltage applications requiring wide dynamic range.

The LTC2335-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.