Mixed Signal/Analog
Smallest 14-Bit, 4.5Msps SAR ADC Integrates Precision Reference in 8mm² TSOT-23 Package
Linear Technology Corporation introduces the LTC2314-14, a 14-bit 4.5Msps successive approximation register (SAR) ADC in a tiny 8-lead TSOT-23 package, offering up to 90% reduction in size over competing solutions for space-conscious applications.
ThisAlso available is the LTC2315-12, a 12-bit pin- and software-compatible version of the LTC2314-14, featuring a fast 5Msps sample rate. The LTC2314-14 and LTC2315-12 lead a family of 14- and 12-bit SAR ADCs featuring sample rates from 500ksps to 5Msps with 77.5dB SNR at 14 bits and 73dB SNR at 12 bits resolution. Accurate DC specifications include a maximum INL and DNL of ±3.75LSB and ±0.99LSB at 14-bits, and ±1.25LSB and ±0.99LSB at 12-bits, respectively. The complete LTC2314 SAR ADC family offers single-ended unipolar inputs, small 8-lead TSOT-23 packages, precision integrated reference and low power dissipation with flexible 3V or 5V supply operation, along with nap and sleep modes for optimizing the power within a system.
The LTC2314-14 and LTC2315-12 are available today in commercial, industrial and automotive (-40°C to 125°C) temperature grades. Pricing begins at $9.52 each for the LTC2314-14 and $5.17 each for the LTC2315-12 in 1,000-piece quantities.
Summary of Features:
LTC2314-14 & LTC2315-12
• 4.5Msps Throughput Rate
• Guaranteed 14-Bit No Missing Codes
• Internal Reference: 2.048V/4.096V Span
• Low Noise: 77.5dB SNR
• Low Power: 6.2mA at 4.5Msps & 5V
• Flexible 3V or 5V Supply Operation
• ±3.75LSB INL Max (5V), ±0.99LSB DNL Max
• Sleep Mode with < 1µA Typical Supply Current
• Nap Mode with Quick Wake-Up < 1 conversion
• Separate 1.8V to 5V Digital I/O Supply
• High Speed SPI-Compatible Serial I/O
• Guaranteed Operation from –40°C to 125°C
• 8-Lead TSOT-23 Package