PRODUCT DESCRIPTION
The LTC®2309 is a low noise, low power, 8-channel, 12-bit successive approximation ADC with an I 2C compatible serial interface.
This ADC includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise. The LTC2309 operates from an internal clock to achieve a fast 1.3µs conversion time.
The LTC2309 operates from a single 5V supply and draws just 300µA at a throughput rate of 1ksps. The ADC enters nap mode when not converting, reducing the power dissipation. The LTC2309 is available in both a small 24-pin 4mm × 4mm QFN and a 20-pin TSSOP package. The internal 2.5V reference and 8-channel multiplexer further reduce PCB board space requirements.
The low power consumption and small size make the LTC2309 ideal for battery-operated and portable applications,whilethe2-wireI 2Ccompatibleserialinterfacemakes this ADC a good match for space-constrained systems.
PRODUCT PROPERTIES
Product Status | Active |
Number of Bits | 12 |
Sampling Rate (Per Second) | 14k |
Number of Inputs | 8 |
Input Type | Differential, Single Ended |
Data Interface | I²C |
Configuration | MUX-S/H-ADC |
Ratio - S/H:ADC | 1:1 |
Number of A/D Converters | 1 |
Architecture | SAR |
Reference Type | External, Internal |
Voltage - Supply, Analog | 5V |
Voltage - Supply, Digital | 5V |
Features | Selectable Address |
Operating Temperature | 0°C ~ 70°C |
Package / Case | 24-WFQFN Exposed Pad |
Supplier Device Package | 24-QFN (4x4) |
Mounting Type | Surface Mount |
Base Product Number | LTC2309 |