The LTC2309CF#PBF is a low noise 8-channel 12-bit SAR A/D Converter with an I2C 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. It 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 internal 2.5V reference and 8-channel multiplexer further reduce PCB board space requirements. The low power consumption and small size make it ideal for battery-operated and portable applications, while the 2-wire I2C compatible serial interface makes this ADC a good match for space-constrained systems.
- 12-bit Resolution
- Low power (1.5mW at 1kSPS, 35μW sleep mode)
- Low noise (SNR = 73.4dB)
- Guaranteed no missing codes
- Single 5V supply
- 2-wire I2C compatible serial interface with nine addresses plus one global for synchronization
- Fast conversion time (1.3μs)
- Internal reference
- Internal 8-channel multiplexer
- Internal conversion clock
- Unipolar or bipolar input ranges (software selectable)
工业, 自动化与过程控制, 电机驱动与控制, 测试与测量, 电源管理
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