12-Bit, 5Msps Serial Sampling ADC in TSOT

The LTC2315-12 is a 12-bit, 5Msps, serial sampling A/D converter that draws only 6.4mA from a wide range analog supply adjustable from 2.7V to 5.25V. The LTC2315-12 contains an integrated bandgap and reference buffer which provide a low cost, high performance (20ppm/°C max) and space saving applications solution. The LTC2315-12 achieves outstanding AC performance of 72.6dB SINAD and –84dB THD while sampling a 500kHz input frequency. The extremely high sample rate-to-power ratio makes the LTC2315-12 ideal for compact, low power, high speed systems. The LTC2315-12 also provides both nap and sleep modes for further optimization of the device power within a system.

The LTC2315-12 has a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3V and 5V logic. The fast 5Msps throughput makes the LTC2315-12 ideally suited for a wide variety of high speed applications.

Complete 14-/12-Bit Pin-Compatible SAR ADC Family

500ksps

2.5Msps

4.5Msps

5Msps

14-Bit

LTC2312-14

LTC2313-14

LTC2314-14

12-Bit

LTC2312-12

LTC2313-12

LTC2315-12

Power 3V/5V

9mW/15mW

14mW/25mW

18mW/31mW

19mW/32mW

Applications

* Communication Systems

* High Speed Data Acquisition

* Handheld Terminal Interface

* Medical Imaging

* Uninterrupted Power Supplies

* Battery Operated Systems

* Automotive

* 5Msps Throughput Rate

* Guaranteed 12-Bit No Missing Codes

* Internal Reference: 2.048V/4.096V Span

* Low Noise: 73dB SNR

* Low Power: 6.4mA at 5Msps and 5V

* Dual Supply Range: 3V/5V operation

* 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