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Analog Devices Inc. LTC2480HMS#TRPBF
- Part No.:
- LTC2480HMS#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2480HMS#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,590
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Product details
Overview
LTC2480HMS#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit plus sign no-latency delta-sigma analog-to-digital converter with patented Easy Drive input current cancellation. It delivers 2 ppm INL, 1 ppm offset error, and simultaneous 50 Hz/60 Hz line rejection in a 10-lead MSOP package, operating from 2.7V to 5.5V supply. It directly digitizes rail-to-rail differential inputs up to ±0.5·VREF/GAIN with full DC accuracy-ideal for precision weight scales and strain gauge transducers.
For engineers reviewing the LTC2480HMS#TRPBF datasheet, LTC2480HMS#TRPBF pinout, LTC2480HMS#TRPBF application, or LTC2480HMS#TRPBF equivalent, key selection criteria include its H-grade extended temperature range (–40°C to 125°C), programmable gain (1–256), internal oscillator, and zero differential input current enabling direct high-impedance sensor interfacing without external buffering.
Technical Context
The LTC2480HMS#TRPBF implements a third-order delta-sigma modulator with continuous transparent offset and full-scale calibration, eliminating latency in digital filter settling. Its Easy Drive architecture cancels dynamic differential input current via patented sampling, allowing rail-to-rail common-mode input (0 V to VCC) independent of reference voltage.
It supports three line-rejection modes (50 Hz, 60 Hz, or simultaneous 50/60 Hz) and a 2× speed mode (15 Hz output rate with internal oscillator). The device uses either its on-chip trimmed oscillator (307.2 kHz nominal) or an external clock applied to the fO pin to control conversion timing and filter null placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit + sign, no missing codes - guarantees monotonicity and unambiguous code mapping across full input range. |
| INL | 2 ppm of VREF (typical) - enables sub-µV-level measurement fidelity in high-precision instrumentation. |
| Offset Error | 0.5 µV (max, H-grade) - ensures accurate zero-point calibration for load cells and bridge sensors. |
| Full-Scale Error | ±40 ppm of VREF (H-grade) - maintains end-point accuracy over –40°C to 125°C without recalibration. |
| Line Rejection | Simultaneous 50 Hz/60 Hz at 87 dB - suppresses mains interference in industrial environments without external notch filters. |
| Supply Range | 2.7 V to 5.5 V - compatible with single Li-ion, 3.3 V, and 5 V systems without level-shifting. |
| Quiescent Current | 1 µA sleep mode, 160 µA conversion (H-grade) - enables battery-powered portable DVMs and IoT sensor nodes. |
Pinout & Package
Package: 10-Lead Plastic MSOP (3.0 mm × 3.0 mm × 1.0 mm), exposed pad grounded, rated for –40°C to 125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDI (1) | Serial Data Input | Configures gain (1–256), line rejection mode, input source (IN+/IN– or internal temp sensor), and 2× speed via 8-bit command on rising SCK edge. |
| VCC (2) | Positive Supply | 2.7 V to 5.5 V analog/digital supply; requires local 1 µF tantalum + 0.1 µF ceramic bypass to GND (Pin 8). |
| VREF (3) | Reference Input | Accepts 0.1 V to VCC; negative reference is GND (Pin 8); sets full-scale range as ±0.5·VREF/GAIN. |
| IN+ (4), IN– (5) | Differential Analog Inputs | Rail-to-rail common-mode (GND – 0.3 V to VCC + 0.3 V); zero differential input current enables direct connection to high-Z sensors. |
| CS (6) | Active-Low Chip Select | Wakes ADC from sleep; initiates data output; LOW-to-HIGH during transfer aborts output and starts new conversion. |
| SDO (7) | Three-State Serial Output | Outputs 24-bit conversion result on falling SCK edges; high-impedance when CS = HIGH; also serves as conversion status indicator. |
| GND (8) | Analog/Digital/Reference Ground | Single shared ground plane connection point; must be low-impedance; exposed pad (Pin 11) is GND and must be soldered. |
| SCK (9) | Bidirectional Serial Clock | Internal mode: output (38.4 kHz); external mode: input (≤4 MHz); mode auto-selected at power-up or CS falling edge. |
| fO (10) | Frequency Control Input | GND = internal 307.2 kHz oscillator; external clock overrides for custom data rates or adaptive filter nulling. |
Key Features
| Feature | Design Value |
|---|---|
| Easy Drive Input Current Cancellation | Eliminates dynamic differential input current errors, enabling direct digitization of high-impedance sources (e.g., 100 kΩ strain gauges) without signal degradation. |
| No-Latency Delta-Sigma Architecture | Digital filter settles in one conversion cycle - no pipeline delay or group delay uncertainty, critical for real-time closed-loop control. |
| Programmable Gain (1–256) | Eight discrete gain steps allow optimal full-scale utilization across sensor types (e.g., 1 for 10 mV/V load cells, 256 for µV-level thermocouples). |
| Simultaneous 50/60 Hz Rejection | 87 dB rejection at both frequencies using a single conversion - eliminates need for dual-frequency external filtering in global industrial deployments. |
| H-Grade Temperature Range | Specified performance from –40°C to 125°C - suitable for under-hood automotive, factory-floor PLCs, and outdoor metering without derating. |
Applications
| Weight Scales | Strain Gauge Transducers |
|---|---|
Use Scenario: High-resolution digital weighing systems for retail, medical, and industrial platforms requiring NTEP or OIML certification. IC Role / Device Role / Timing Role: Primary ADC digitizing mV-level bridge outputs from load cells with integrated line-frequency rejection and zero-drift calibration. Use Value: 2 ppm INL and 0.5 µV offset error enable ≤0.001% full-scale accuracy across temperature, meeting Class III/III L metrology requirements. | Use Scenario: Structural health monitoring in bridges, cranes, and aerospace components using bonded foil or MEMS strain gauges. IC Role / Device Role / Timing Role: Precision front-end ADC with rail-to-rail input and programmable gain, capturing microstrain-level differential signals amid EMI-rich environments. Use Value: Easy Drive technology eliminates input current-induced errors from gauge lead resistance, preserving resolution down to 0.1 µε without external op-amps. |
| Direct Temperature Measurement | Industrial Process Control |
Use Scenario: Embedded temperature sensing in motor drives, power converters, and battery management systems where PCB space limits external sensors. IC Role / Device Role / Timing Role: On-chip PTAT temperature sensor (390–450 mV at 27°C) digitized alongside external analog inputs using same ADC core. Use Value: Eliminates need for separate temperature IC and associated routing; calibrated internal sensor provides ±1°C accuracy without BOM cost or layout overhead. | Use Scenario: Analog input modules in PLCs and distributed I/O systems measuring pressure, flow, and level transmitters in harsh factory settings. IC Role / Device Role / Timing Role: Isolated or non-isolated channel ADC with simultaneous 50/60 Hz rejection, supporting universal AC-powered installations worldwide. Use Value: Guaranteed 87 dB line rejection and H-grade operation ensure stable readings in electrically noisy 4–20 mA loop environments without software compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPWR | 24-bit resolution, integrated PGA and burnout current, but no simultaneous 50/60 Hz rejection; requires external clock for notch tuning. | Targeted at ultra-high-resolution sensor nodes (e.g., RTD, thermocouple) where 16-bit is insufficient; lacks Easy Drive's zero-input-current advantage for high-Z bridges. | Select ADS124S08IPWR only when >16-bit resolution is mandatory and line rejection can be handled digitally or with external filters. |
| MAX11200ETA+ | 18-bit resolution, 2.5 µV offset (typ), no programmable gain, fixed 50/60 Hz rejection only - no simultaneous mode; smaller 8-pin µDFN package. | Optimized for compact, low-power portable instruments; lacks rail-to-rail input and H-grade temp range - limited to 0°C to 70°C commercial use. | Choose MAX11200ETA+ for space-constrained battery devices where 16-bit resolution and extended temperature are not required. |
Compared with ADS124S08IPWR and MAX11200ETA+, the LTC2480HMS#TRPBF uniquely combines 16-bit precision with zero differential input current, simultaneous dual-frequency rejection, and guaranteed H-grade operation - making it the optimal choice for ruggedized industrial weigh scales and strain measurement where input impedance and EMI immunity are critical.
Availability
LTC2480HMS#TRPBF is available at Aetrix Electronics and suitable for weight scales, strain gauge transducers, industrial process control systems, and direct temperature measurement applications requiring stable component supply across extended temperature ranges.
Supply support for LTC2480HMS#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2480HMS#TRPBF belongs to ADI's precision delta-sigma ADC product line, engineered specifically for high-accuracy, low-power, noise-immune sensor digitization in demanding industrial and automotive environments.
FAQ
What is the maximum operating temperature specification for the LTC2480HMS#TRPBF?
The LTC2480HMS#TRPBF is rated for operation from –40°C to +125°C, as confirmed by its H-grade temperature marking in the order information table. This extended range is validated across all electrical specifications including INL, offset error, and line rejection performance, making it suitable for under-hood automotive and industrial control applications where ambient temperatures exceed standard commercial or industrial grades.
Does the LTC2480HMS#TRPBF require an external crystal or oscillator?
No, the LTC2480HMS#TRPBF includes an on-chip trimmed oscillator that operates at 307.2 kHz nominal, eliminating the need for external crystals or oscillators. The fO pin can be tied to GND to enable internal clocking, or driven externally to adjust conversion rate and filter null placement - providing design flexibility without added BOM cost or board area.
How does the Easy Drive technology in the LTC2480HMS#TRPBF improve sensor interface performance?
The Easy Drive technology in the LTC2480HMS#TRPBF automatically cancels differential input current through a patented sampling scheme, resulting in near-zero dynamic input current at IN+ and IN–. This allows direct connection to high-impedance sensors like 100 kΩ strain gauges or thermistor networks without external buffers, preserving signal integrity and eliminating errors caused by source impedance mismatch - a key advantage over conventional delta-sigma ADCs.
Can the LTC2480HMS#TRPBF reject both 50 Hz and 60 Hz line noise simultaneously?
Yes, the LTC2480HMS#TRPBF supports a dedicated simultaneous 50 Hz/60 Hz rejection mode achieving 87 dB attenuation at both frequencies. This is implemented in hardware via its digital filter structure and does not require firmware configuration or external components - enabling robust operation in globally deployed equipment powered from either 50 Hz or 60 Hz mains without redesign.
What is the function of the SDI pin on the LTC2480HMS#TRPBF?
The SDI pin on the LTC2480HMS#TRPBF is a serial data input used to configure device operation: it accepts an 8-bit command on the rising edge of SCK to select programmable gain (1–256), line frequency rejection mode (50 Hz, 60 Hz, or simultaneous), input source (differential analog or internal temperature sensor), and 2× speed mode - enabling full feature control over the 4-wire SPI interface without additional control lines.
LTC2480HMS#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 7.5
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- MUX-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:
- Temperature Sensor
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2480HMS#TRPBF FAQ
1.How can I place an order for LTC2480HMS#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2480HMS#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 LTC2480HMS#TRPBF reliable?
The price and inventory of LTC2480HMS#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2480HMS#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2480HMS#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2480HMS#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2480HMS#TRPBF?
LTC2480HMS#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2480HMS#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 LTC2480HMS#TRPBF?
For technical support, including LTC2480HMS#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2480HMS#TRPBF requirements.
6.How does Aetrix verify that LTC2480HMS#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2480HMS#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 LTC2480HMS#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2480HMS#TRPBF?
All LTC2480HMS#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2480HMS#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 LTC2480HMS#TRPBF part is unused and in its original packaging.
Return procedure for LTC2480HMS#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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