My Inquiry
My Account
Analog Devices Inc. LTC2462CMS#PBF
- Part No.:
- LTC2462CMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 12-TSSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2462CMS#PBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 12MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,357
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2462CMS#PBF from Analog Devices (formerly Linear Technology) is a 16-bit delta-sigma analog-to-digital converter with integrated 1.25V precision reference, differential input architecture (±VREF range), SPI interface, and ultra-low power operation. It delivers no missing codes, 2 LSB offset error, 0.01% gain error, and 60 conversions per second - enabling high-accuracy sensor digitization in battery-powered environmental monitoring systems.
For engineers reviewing the LTC2462CMS#PBF datasheet, LTC2462CMS#PBF pinout, LTC2462CMS#PBF application, or LTC2462CMS#PBF equivalent, key selection criteria include its differential input capability, internal reference drift (±2 ppm/°C max for C-grade), sleep current (200 nA), 12-lead MSOP package, and single-cycle conversion settling for multiplexed sensing.
Technical Context
The LTC2462CMS#PBF implements a proprietary delta-sigma modulator with integrated sinc filter and continuous internal offset/full-scale calibration - ensuring accuracy over temperature without user intervention. Its differential input stage accepts ±1.25V signals referenced to REF–, with clamping at ±VREF and 8-LSB overrange capability below GND or above VREF.
Operation follows a deterministic three-state cycle: CONVERT (16.6 ms typical), SLEEP/NAP (ADC and/or reference powered down), and DATA INPUT/OUTPUT (16-bit serial SPI transfer). The internal oscillator eliminates external timing components, and CS-controlled state transitions enable precise power management in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, no missing codes - guarantees monotonicity and full dynamic range utilization in precision measurement. |
| Input Type | Differential (IN+, IN–) with ±VREF range - rejects common-mode noise and enables true bipolar signal acquisition. |
| Reference Output | 1.25 V ±3 mV (1.247–1.253 V), ±2 ppm/°C max drift (C-grade) - eliminates need for external reference in space-constrained designs. |
| Conversion Rate | 60 conversions per second - supports real-time sampling of slow-varying physical parameters (e.g., temperature, pressure). |
| Supply Current | 1.5 mA during conversion, 2 µA in sleep mode - enables multi-year battery life in wireless sensor nodes. |
| Offset Error | 2 LSB maximum - ensures <100 µV absolute error at 1.25 V full scale, critical for low-level transducer interfacing. |
| Gain Error | ±0.01% of full scale - maintains linearity across supply (2.7–5.5 V) and temperature (0°C to 70°C). |
Pinout & Package
Package: 12-lead plastic MSOP (3.0 mm × 4.9 mm × 1.1 mm height), RoHS-compliant, lead-free finish. Exposed pad not present in MSOP variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REFOUT (1) | Reference output | Nominally 1.25 V; sets ADC full-scale range; requires 0.1 µF bypass to GND for stability and low noise. |
| COMP (2) | Reference compensation | Connects to 0.1 µF capacitor to GND; stabilizes internal reference and minimizes output noise. |
| CS (3) | Chip select (active low) | Enables SDO output and initiates DATA INPUT/OUTPUT state; HIGH places SDO in high-Z. |
| SDI (4) | Serial data input | Accepts 4-bit control word (EN1/EN2/SPD/SLP); tied to GND/VCC for simplified configuration (60 Hz default, sleep disabled). |
| SCK (5) | Serial clock input | Drives SPI timing; supports up to 2 MHz; idle-high (CPOL = 1) or idle-low (CPOL = 0) modes supported. |
| SDO (6) | Serial data output | 3-state output; delivers 16-bit result MSB-first on SCK falling edges; indicates conversion status when CS low and SCK high. |
| GND (7, 11) | Analog/digital ground | Low-impedance connection to PCB ground plane; pins 7 and 11 are internally connected. |
| REF– (8) | Negative reference input | Sets zero-input level; typically tied to system ground or remote sensor ground sense point. |
| IN+ (9) | Differential positive input | Accepts voltage up to VREF; supports 8-LSB overrange below GND when IN– = GND. |
| IN– (10) | Differential negative input | Accepts voltage up to VREF; enables true differential measurement and common-mode rejection. |
| VCC (12) | Positive supply | 2.7 V to 5.5 V operation; requires 10 µF + 0.1 µF parallel bypass capacitors placed near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1.25 V reference | ±2 ppm/°C max drift (C-grade) and 0.1% initial accuracy - removes external reference cost, board area, and calibration burden. |
| No-latency data output | 16-bit result corresponds exactly to last completed conversion - eliminates filter delay and enables deterministic multiplexed sampling. |
| Proprietary input sampling | Average input current ≤50 nA - allows direct RC filtering (e.g., 1 kΩ + 0.1 µF) with <1 LSB error, simplifying anti-aliasing design. |
| Auto shutdown architecture | Reduces supply current to 200 nA when both ADC and reference are powered down - extends battery life in intermittent-read applications. |
| Continuous calibration | Per-conversion offset and full-scale correction - maintains accuracy over time and temperature without user-triggered recalibration. |
Applications
| Environmental Monitoring | Industrial Process Control |
|---|---|
Use Scenario: Measuring thermistor or RTD voltage outputs in HVAC ducts or outdoor weather stations with limited power budget. IC Role / Device Role / Timing Role: Differential ADC digitizing low-level bridge or ratiometric sensor outputs while rejecting EMI and ground-loop noise. Use Value: 16-bit resolution and ±2 ppm/°C reference drift ensure <0.1°C temperature accuracy over 0°C–70°C operating range without recalibration. |
Use Scenario: Digitizing 4–20 mA loop sensor signals via precision shunt resistor in PLC analog input modules. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC providing isolated analog input channel with minimal external components. Use Value: 2 LSB offset error and 0.01% gain error enable direct replacement of 14-bit converters without firmware scaling changes. |
| Direct Temperature Measurements | Embedded ADC Upgrades |
Use Scenario: Cold-junction compensation in thermocouple interfaces using silicon temperature sensors. IC Role / Device Role / Timing Role: Precision ADC capturing millivolt-level sensor outputs with built-in reference and differential input for noise immunity. Use Value: 8-LSB overrange below GND allows accurate digitization of sub-zero junction voltages without level-shifting circuitry. |
Use Scenario: Replacing legacy 12-bit SAR ADCs in existing microcontroller-based data loggers to improve resolution without layout change. IC Role / Device Role / Timing Role: Pin-compatible SPI ADC upgrade offering higher resolution, lower power, and integrated reference. Use Value: Same 12-lead MSOP footprint and SPI protocol enable drop-in replacement; 16-bit output increases effective dynamic range by 24 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1115IDGSR | 16-bit, I²C interface, programmable gain amplifier (PGA), 860 µA active current, no integrated reference - requires external 2.048 V reference. | Best suited for I²C-based microcontrollers with limited GPIO; lacks differential input flexibility and ultra-low sleep current. | Select when I²C bus availability and PGA flexibility outweigh need for lowest power and integrated reference. |
| LTC2452IMS#PBF | 16-bit, differential input, ±2.5 V input range, 2.5 V reference, 1.8 mA active current, same MSOP-12 package - wider input range but higher power and no sleep mode. | Preferred for higher-voltage industrial sensors (>±1.25 V); lacks auto-shutdown and 200 nA sleep capability. | Choose when full-scale range >±1.25 V is required and continuous conversion mode is acceptable. |
Compared with ADS1115IDGSR and LTC2452IMS#PBF, the LTC2462CMS#PBF uniquely combines integrated 1.25 V reference, 200 nA sleep current, and deterministic 16.6 ms conversion timing - making it optimal for battery-powered, space-constrained, differential-sensing applications demanding long-term stability without external support components.
Availability
LTC2462CMS#PBF is available at Aetrix Electronics and suitable for environmental monitoring, industrial process control, and embedded sensor node applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for LTC2462CMS#PBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC2462CMS#PBF belongs to the ultra-low-power, integrated-reference delta-sigma ADC product line designed specifically for precision, battery-operated sensor interfaces where size, power, and long-term accuracy are critical.
FAQ
What is the operating temperature range for the LTC2462CMS#PBF?
The LTC2462CMS#PBF is rated for 0°C to 70°C ambient operation (C-grade). This range is confirmed in the Absolute Maximum Ratings table and applies to all electrical specifications unless otherwise noted. The MSOP-12 package has θJA = 120°C/W, supporting reliable thermal performance within this envelope under typical PCB layouts.
Does the LTC2462CMS#PBF require an external crystal or clock source?
No, the LTC2462CMS#PBF includes a fully integrated oscillator and requires no external timing components. All timing - including modulation, filtering, and SPI synchronization - is derived from this internal clock, simplifying BOM and reducing board area.
How does the LTC2462CMS#PBF handle input signals that go below ground?
The LTC2462CMS#PBF supports up to 8 LSBs of underrange on IN+ or IN– relative to GND when the differential input remains within ±VREF. For example, with REF– = GND and VREF = 1.25 V, IN+ can be as low as –0.305 mV (8 LSBs) while maintaining valid output code mapping - enabling direct cold-junction or negative-bias measurements.
What is the minimum supply voltage required for the LTC2462CMS#PBF to operate correctly?
The LTC2462CMS#PBF operates from 2.7 V to 5.5 V. Below 2.7 V, the internal reference may not regulate properly, and conversion results become invalid. A power-on reset is triggered if VCC drops below ~2.1 V, ensuring known startup behavior but not functional operation.
Can the LTC2462CMS#PBF be used in a single-ended configuration?
No - the LTC2462CMS#PBF is exclusively a differential-input ADC (IN+, IN–). For single-ended operation, the LTC2460 series (e.g., LTC2460CMS#PBF) must be used. The two families are pin- and software-compatible but differ in input topology and internal signal routing.
LTC2462CMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-TSSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 60
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 12-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2462CMS#PBF FAQ
1.How can I place an order for LTC2462CMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2462CMS#PBF 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 LTC2462CMS#PBF reliable?
The price and inventory of LTC2462CMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2462CMS#PBF is usually 5 days.
3.What payment methods are accepted for LTC2462CMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2462CMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2462CMS#PBF?
LTC2462CMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2462CMS#PBF 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 LTC2462CMS#PBF?
For technical support, including LTC2462CMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2462CMS#PBF requirements.
6.How does Aetrix verify that LTC2462CMS#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2462CMS#PBF 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 LTC2462CMS#PBF meets industry standards.
7.What is the process for return or replacement of LTC2462CMS#PBF?
All LTC2462CMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2462CMS#PBF, 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 LTC2462CMS#PBF part is unused and in its original packaging.
Return procedure for LTC2462CMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2462CMS#PBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
