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Analog Devices Inc. LTC2483CDD#TRPBF
- Part No.:
- LTC2483CDD#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
LTC2483CDD#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,736
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Product details
Overview
LTC2483CDD#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit plus sign delta-sigma analog-to-digital converter with patented Easy Drive input current cancellation, I²C interface, and integrated oscillator. It delivers 600 nVRMS noise independent of reference voltage, 2 ppm INL, and simultaneous 50 Hz/60 Hz line rejection - enabling direct digitization of rail-to-rail, high-impedance sensor signals (e.g., strain gauges, load cells) without external amplification or buffering.
For engineers reviewing the LTC2483CDD#TRPBF datasheet, LTC2483CDD#TRPBF pinout, LTC2483CDD#TRPBF application, or LTC2483CDD#TRPBF equivalent, key selection criteria include differential input current cancellation performance, 0 V to VCC common-mode input range, internal oscillator operation, I²C address configurability (6 options), and guaranteed no missing codes across temperature.
Technical Context
The LTC2483CDD#TRPBF employs a third-order ∆Σ modulator with transparent auto-calibration for offset and full-scale, settling in a single digital filter cycle (no latency). Its Easy Drive architecture eliminates dynamic differential input current via passive sampling network cancellation - enabling direct connection to sensors with source impedances up to 100 kΩ while maintaining DC accuracy.
It supports internal or external clocking (10–4000 kHz), delivers simultaneous 50 Hz/60 Hz rejection at 87 dB, and operates from 2.7 V to 5.5 V. The reference voltage range is 0.1 V to VCC, and input common-mode range spans GND to VCC - fully independent of VREF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit + sign, no missing codes - guarantees monotonicity and unambiguous code mapping over full input range. |
| INL | 2 ppm (0.25 LSB) max - ensures high linearity for precision measurement applications like weight scales and instrumentation. |
| Noise | 600 nVRMS, independent of VREF - enables accurate low-level signal digitization even with sub-100 mV references. |
| Input Range | ±0.5 × VREF, with 0 V to VCC common-mode - allows direct interfacing to unbuffered sensors referenced to system rails. |
| I²C Interface | Standard/fast mode (up to 400 kHz), 7-bit address + R/W bit, 6 configurable addresses - simplifies multi-device bus design without address conflicts. |
| Supply Current | 160 µA typ in conversion mode, 1 µA in sleep - supports ultra-low-power battery-operated sensor nodes. |
| Line Rejection | 87 dB simultaneous 50 Hz/60 Hz - eliminates need for external notch filters in industrial AC-line environments. |
Pinout & Package
Package: 10-lead (3 mm × 3 mm) plastic DFN with exposed pad (Pin 11 = GND, must be soldered).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF+ / REF− | Differential reference inputs | Accept 0.1 V to VCC reference span; common-mode range independent of VREF; enable flexible reference sourcing (e.g., VCC, bandgap, external). |
| IN+ / IN− | Differential analog inputs | Rail-to-rail input range (GND − 0.3 V to VCC + 0.3 V); zero differential input current via Easy Drive - permits direct connection to high-Z transducers. |
| VCC / GND | Power supply and ground | 2.7 V to 5.5 V operation; requires local 1 µF tantalum + 0.1 µF ceramic bypass at VCC–GND for stable conversion performance. |
| SCL / SDA | I²C serial clock and data | Open-drain SDA requires external pull-up; supports standard/fast mode; slave-only operation - integrates seamlessly into microcontroller-based sensor systems. |
| CA0/F0 / CA1 | I²C address configuration / external clock input | Two 3-state pins configure one of six I²C addresses; CA0/F0 doubles as external oscillator input (10–4000 kHz) - enables flexible timing and multi-drop bus layout. |
Key Features
| Feature | Design Value |
|---|---|
| Easy Drive™ input current cancellation | Eliminates differential input current errors without on-chip buffers - preserves DC accuracy with RC filters or >100 kΩ sensor sources. |
| No-latency digital filter | Settles in one conversion cycle - provides immediate valid output after read completion, enabling deterministic timing in closed-loop systems. |
| Internal trimmed oscillator | Removes need for external crystal/clock - reduces BOM count and PCB area; enables simultaneous 50/60 Hz rejection without external components. |
| GND-to-VCC input/reference common-mode range | Decouples analog input and reference common-mode constraints - allows VREF = VCC or 100 mV while inputs swing rail-to-rail. |
| Auto-calibration | Continuous, transparent offset and full-scale calibration - maintains absolute accuracy over temperature and time without user intervention. |
Applications
| Weight Scales | Strain Gauge Transducers |
|---|---|
|
Use Scenario: High-precision weighing in commercial scales using 350 Ω or 1 kΩ bridge sensors with mV/V output. IC Role / Device Role / Timing Role: Direct bridge digitizer with 600 nVRMS noise and 2 ppm INL - captures microvolt-level bridge imbalances without gain stages. Use Value: Eliminates instrumentation amplifier and external reference, reducing component count and thermal drift error sources. |
Use Scenario: Structural health monitoring using bonded foil or semiconductor strain gauges in industrial machinery. IC Role / Device Role / Timing Role: Low-drift, high-Z ADC front-end with zero differential input current - prevents loading-induced nonlinearity in unbuffered Wheatstone bridges. Use Value: Enables direct connection to gauges with >10 kΩ source impedance while maintaining 16-bit accuracy and 87 dB line rejection. |
| Direct Temperature Measurement | Industrial Process Control |
|
Use Scenario: RTD or thermistor-based temperature sensing in HVAC and environmental monitoring systems. IC Role / Device Role / Timing Role: Precision ratiometric ADC with 0.1 V minimum VREF - supports low-voltage excitation (e.g., 100 µA current source) for self-heating mitigation. Use Value: Achieves <0.01 °C resolution with Pt100 sensors using internal 2.5 V reference and rail-to-rail input range. |
Use Scenario: Analog input module in PLCs measuring 4–20 mA loop signals, thermocouples, or process voltages. IC Role / Device Role / Timing Role: Isolated or non-isolated channel ADC with simultaneous 50/60 Hz rejection - suppresses AC-coupled noise in factory-floor environments. Use Value: Delivers stable 16-bit readings in electrically noisy settings without external line-frequency filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IRUGT | 16-bit, 860 SPS, no Easy Drive; requires external PGA for high-Z sources; 150 nVRMS noise but VREF-dependent. | Lacks differential input current cancellation - needs external op-amp buffer for >10 kΩ sensors; lower power but higher system complexity. | Prefer when lower noise is critical and sensor impedance is low; avoid for direct high-Z transducer interfaces. |
| MAX11200ETA+ | 24-bit, 120 SPS, internal PGA, 550 nVRMS noise; no I²C - uses SPI; requires external reference for best accuracy. | Higher resolution but slower; SPI interface increases MCU pin count; no built-in line rejection - needs software or external filtering. | Choose for ultra-high-resolution DC measurements where speed is secondary and SPI is preferred; not drop-in I²C replacement. |
Compared with ADS1115IRUGT and MAX11200ETA+, the LTC2483CDD#TRPBF uniquely combines I²C simplicity, Easy Drive front-end, and simultaneous 50/60 Hz rejection - making it optimal for cost-sensitive, space-constrained, high-Z sensor systems requiring minimal external components and robust AC-line immunity.
Availability
LTC2483CDD#TRPBF is available at Aetrix Electronics and suitable for weight scales, industrial process control, direct temperature measurement, and strain gauge transducer applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC2483CDD#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2483CDD#TRPBF belongs to ADI's precision delta-sigma ADC product line, designed specifically for direct sensor digitization in low-power, high-accuracy measurement systems where input buffering, external clocks, or line-frequency filtering must be minimized.
FAQ
What is the operating temperature range for the LTC2483CDD#TRPBF?
The LTC2483CDD#TRPBF is rated for 0°C to 70°C ambient operation, as indicated by the 'C' grade suffix. This makes it suitable for commercial and industrial indoor applications where extended temperature ranges are not required. The device maintains specified performance - including 2 ppm INL and 600 nVRMS noise - across this full range without derating.
Does the LTC2483CDD#TRPBF require an external crystal or oscillator?
No, the LTC2483CDD#TRPBF includes an on-chip trimmed oscillator that enables full functionality - including simultaneous 50 Hz/60 Hz rejection - without any external timing components. An external oscillator (10–4000 kHz) may be applied to CA0/F0 only if custom filter null placement is needed; otherwise, the internal oscillator is used by default in the LTC2483CDD#TRPBF.
How does Easy Drive technology benefit sensor interfacing in the LTC2483CDD#TRPBF?
Easy Drive technology in the LTC2483CDD#TRPBF cancels differential input current through a patented passive sampling scheme, eliminating dynamic errors caused by source impedance mismatch. This allows direct connection to high-impedance sensors (e.g., strain gauges, RTDs) without external op-amps - preserving DC accuracy, reducing board space, and avoiding buffer-induced drift or noise.
What I²C addresses are supported by the LTC2483CDD#TRPBF?
The LTC2483CDD#TRPBF supports six unique I²C addresses via two 3-state address pins (CA1 and CA0/F0), configured as LOW/HIGH/floating. Valid combinations yield addresses 0x50–0x55 (binary 0010100 to 0100111). This enables up to six LTC2483CDD#TRPBF devices on a single I²C bus without address conflict - ideal for multi-channel sensor arrays.
Can the LTC2483CDD#TRPBF operate with a 100 mV reference voltage?
Yes, the LTC2483CDD#TRPBF supports reference voltages as low as 0.1 V (100 mV) across its full operating range. Its 600 nVRMS noise is independent of VREF, so SNR remains constant - enabling high-resolution digitization of low-amplitude signals (e.g., thermistor outputs) without gain stages. Full-scale input remains ±0.5 × VREF, i.e., ±50 mV in this case.
LTC2483CDD#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 6.8
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- I2C
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- Selectable Address
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 10-DFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2483CDD#TRPBF FAQ
1.How can I place an order for LTC2483CDD#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2483CDD#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC2483CDD#TRPBF reliable?
The price and inventory of LTC2483CDD#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2483CDD#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2483CDD#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2483CDD#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2483CDD#TRPBF?
LTC2483CDD#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2483CDD#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC2483CDD#TRPBF?
For technical support, including LTC2483CDD#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2483CDD#TRPBF requirements.
6.How does Aetrix verify that LTC2483CDD#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2483CDD#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC2483CDD#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2483CDD#TRPBF?
All LTC2483CDD#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2483CDD#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC2483CDD#TRPBF part is unused and in its original packaging.
Return procedure for LTC2483CDD#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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