LTC2482
PRODUCTION16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation
- Part Models
- 4
- 1ku List Price
- Starting From $2.01
Part Details
- Easy Drive™ Technology Enables Rail-to-Rail Inputs with Zero Differential Input Current
- Directly Digitizes High Impedance Sensors with Full Accuracy
- 600nV RMS Noise, Independent of VREF
- Operates with a Reference as Low as 100mV with 16-Bit Resolution
- GND to VCC Input/Reference Common Mode Range
- Simultaneous 50Hz/60Hz Rejection Mode
- 2ppm INL, No Missing Codes
- 1ppm Offset and 15ppm Total Unadjusted Error
- No Latency: Digital Filter Settles in a Single Cycle
- Single Supply 2.7V to 5.5V Operation
- Internal Oscillator
- Available in a Tiny (3mm × 3mm) 10-Lead DFN Package
The LTC2482 combines a 16-bit plus sign No Latency ΔΣ™ analog-to-digital converter with patented Easy Drive technology. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and input signals with rail-to-rail input range to be directly digitized while maintaining exceptional DC accuracy.
The LTC2482 allows a wide common mode input range (0V to VCC) independent of the reference voltage. The reference can be as low as 100mV or can be tied directly to VCC. The noise level is 600nV RMS independent of VREF. This allows direct digitization of low level signals with 16-bit accuracy. The LTC2482 includes an on-chip trimmed oscillator, eliminating the need for external crystals or oscillators and provides 87dB rejection of 50Hz and 60Hz line frequency noise. Absolute accuracy and low drift are automatically maintained through continuous, transparent, offset and full-scale calibration.
Applications
- Direct Sensor Digitizer
- Weight Scales
- Direct Temperature Measurement
- Strain Gauge Transducers
- Instrumentation
- Industrial Process Control
- DVMs and Meters
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Design Note 2
Technical Articles 1
Product Selector Card 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2482CDD#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2482CDD#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2482IDD#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2482IDD#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Analog Temperature Sensors 1 | ||
| LTC2995 | PRODUCTION | Temperature Sensor and Dual Voltage Monitor with Alert Outputs |
| I²C Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| Series Voltage References 1 | ||
| LT6660 | PRODUCTION | Tiny Micropower Precision Series References in 2mm × 2mm DFN |
| TimerBlox 1 | ||
| LTC6991 | PRODUCTION | TimerBlox: Resettable, Low Frequency Oscillator |
Tools & Simulations
Linduino 3
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2482 16-bit Delta-Sigma ADC (Requires DC590)
Resources
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