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1. Describe
The LTC2415IGN#PBF are micropower 24-bit differential ΔΣ analog-to-digital converter with integrated oscillator, 2ppm INL, 0.23ppm RMS Noise, and 2.7V to 5.5V Supply scope. They use delta-sigma technology and provide a single Cycle setup time for multiplexed applications. through a Single pin, the LTC2415 can be configured to be better than 110dB input differential mode rejection at 50Hz or 60Hz ±2%, or it can be driven by an external oscillator User-defined rejection frequency. The LTC2415-1 can be Configured for better than 87dB input differential mode Rejection from 49Hz to 61.2Hz (50Hz and 60Hz ±2% at the same time). Internal oscillator not required External frequency setting element. Converter accepts any external differential reference Voltages from 0.1V to VCC for flexible ratiometric and telemetry configurations. comprehensive The differential input range is –0.5VREF to 0.5VREF. this Reference Common Mode Voltage, VREFCM and Input Common mode voltage VINCM can be set independently Anywhere in the GND to VCC range of the LTC2415/LTC2415-1. The DC common mode input rejection is better than 140dB. The LTC2415/LTC2415-1 communicate through flexible SPI-compatible 3-wire digital interface and MICROWIRE protocol.
2. Feature
1. 2x accelerated versions of the LTC2410/LTC2413:
- 15Hz output rate, 50Hz or 60Hz notch - LTC2415;
- 13.75Hz output rate, 50Hz/60Hz simultaneously Notch—LTC2415-1
2. Differential input and differential reference GND to VCC common mode range
3. 2ppm INL, no missing codes
4. 2.5ppm gain error
5. 0.23ppm noise
6. Multiplexed single conversion settling time application
7. Internal oscillator - no external components required
8. 24-Bit ADC in Narrow SSOP-16 Package (SO-8 footprint)
9. Single supply 2.7V to 5.5V operation
10. Low supply current (200µA) and automatic shutdown
3. Application
1. Direct sensor digitizer
2. weight scale
3. Direct temperature measurement
4. Gas analyzer
5. strain gauge sensor
6. Instrumentation
7. data collection
8. Industrial process control
9. 6-bit DVM
4. Pin configuration
5. PIN FUNCTIONS
1. GND : Ground.
2. VCC : Positive Supply Voltage.
3. REF+ , REF– : Differential Reference Input.
4. IN+ , IN– : Differential Analog Input.
5. CS : Active LOW Digital Input.
6. SDO : Three-State Digital Output.
7. SCK : Bidirectional Digital Clock Pin.
8. FO : Frequency Control Pin.
