LTC2308 - Low Noise, 500ksps, 8-Channel, 12-Bit ADC
The LTC2308 is a low noise, 500ksps, 8-channel, 12-bit ADC with an SPI/MICROWIRE compatible serial interface. This ADC includes an internal reference and a fully differential sample-and-hold circuit to reduce common-mode noise. The internal conversion clock allows the external serial output data clock (SCK) to operate at any frequency up to 40MHz.
The LTC2308 operates from a single 5V supply and draws just 3.5mA at a sample rate of 500ksps. The auto-shutdown feature reduces the supply current to 200µA at a sample rate of 1ksps.
The LTC2308 is packaged in a small 24-pin 4mm x 4mm QFN. The internal 2.5V reference and 8-channel multiplexer further reduce PCB board space requirements.
The low power consumption and small size make the LTC2308 ideal for battery operated and portable applications, while the 4-wire SPI compatible serial interface makes this ADC a good match for isolated or remote data acquisition systems.
Features
Typical Application  | Applications
Packaging |
Order Information
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|---|---|---|---|
| LTC2308CUF#PBF | 4x4 QFN-24 | C | $5.27 | $2.95 |
| LTC2308CUF#TRPBF | 4x4 QFN-24 | C | $5.33 | $3.01 |
| LTC2308IUF#PBF | 4x4 QFN-24 | I | $6.32 | $3.54 |
| LTC2308IUF#TRPBF | 4x4 QFN-24 | I | $6.38 | $3.60 |
Demo Boards
| Part Number | Description | Price |
|---|---|---|
| DC1186A | LTC2308: 12-bit, 8-channel SAR ADC with SPI I/F, (req DC590 for DC, DC890 for AC apps) | $50.00 |
Companion Boards
| Part Number | Description | Price |
|---|---|---|
| DC2026C | Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform | $75.00 |
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 |
| DC890B | USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) | $300.00 |
