Overview
The LTC2451IDDB#TRPBF is an ultra-tiny, 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for high precision and low power consumption, making it suitable for a variety of applications requiring accurate analog-to-digital conversion. The LTC2451 uses a single 2.7V to 5.5V supply and communicates through an I2C interface. It is available in an 8-pin, 3mm × 2mm DFN package or an 8-pin TSOT-23 package, ensuring a compact footprint in modern designs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Supply Voltage (VCC) | 2.7V to 5.5V |
| Analog Input Voltage Range | VREF– to VREF+ (GND to VCC if VREF+ = VCC and VREF– = GND) |
| Noise | 0.02 LSB RMS |
| Integral Nonlinearity (INL) | 2 LSB |
| Offset Error | 1 LSB |
| Full-Scale Error | 4 LSB |
| Conversion Rate | Up to 60 conversions per second |
| Supply Current | 400 μA (active), 0.2 μA (sleep) |
| Package | 8-pin DFN (3mm × 2mm w/ EP) or 8-pin TSOT-23 |
| Operating Temperature Range | –40°C to 85°C (I grade), 0°C to 70°C (C grade) |
Key Features
- Ultra-tiny 3mm × 2mm DFN or TSOT-23 package for compact designs.
- Single 2.7V to 5.5V supply operation.
- Single-ended analog input voltage range from VREF– to VREF+.
- I2C interface for communication.
- Integrated oscillator; no external components required.
- Delta-sigma modulator as the converter core.
- Single-cycle settling time for multiplexed applications.
- Proprietary input sampling scheme reducing average input sampling current.
- Continuous internal offset calibration algorithms ensuring accuracy over time and temperature.
- Low power consumption: less than 50 μW average power from a 2.7V supply when reading once per second.
Applications
- System monitoring.
- Environmental monitoring.
- Direct temperature measurements.
- Instrumentation.
Q & A
- What is the resolution of the LTC2451IDDB#TRPBF ADC?
The LTC2451IDDB#TRPBF has a resolution of 16 bits.
- What is the supply voltage range for the LTC2451IDDB#TRPBF?
The supply voltage range is 2.7V to 5.5V.
- What is the analog input voltage range for the LTC2451IDDB#TRPBF?
The analog input voltage range is from VREF– to VREF+, which can be set from GND to VCC if VREF+ = VCC and VREF– = GND.
- What is the conversion rate of the LTC2451IDDB#TRPBF?
The conversion rate is up to 60 conversions per second.
- Does the LTC2451IDDB#TRPBF require any external components for its oscillator?
No, the LTC2451IDDB#TRPBF has an integrated oscillator that does not require any external components.
- What is the power consumption of the LTC2451IDDB#TRPBF in sleep mode?
The power consumption in sleep mode is less than 0.2 μA.
- What communication interface does the LTC2451IDDB#TRPBF use?
The LTC2451IDDB#TRPBF uses an I2C interface for communication.
- What are the typical applications of the LTC2451IDDB#TRPBF?
Typical applications include system monitoring, environmental monitoring, direct temperature measurements, and instrumentation.
- What is the operating temperature range for the LTC2451IDDB#TRPBF?
The operating temperature range is –40°C to 85°C (I grade) and 0°C to 70°C (C grade).
- How does the LTC2451IDDB#TRPBF manage offset calibration?
The LTC2451IDDB#TRPBF includes continuous internal offset calibration algorithms that are transparent to the user, ensuring accuracy over time and temperature.
