My Inquiry
My Account
Analog Devices Inc. LTC2400IS8#PBF
- Part No.:
- LTC2400IS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC2400IS8#PBF.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,652
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2400IS8#PBF from Analog Devices (formerly Linear Technology) is a 24-bit micropower delta-sigma ADC in SO-8 package, delivering 4ppm INL, 0.3ppm RMS noise, and single-cycle settling for multiplexed sensor interfaces. It operates from 2.7V to 5.5V, integrates an internal oscillator, and supports 50Hz/60Hz notch filtering-ideal for precision weight scales and strain-gage transducers.
For engineers reviewing the LTC2400IS8#PBF datasheet, LTC2400IS8#PBF pinout, LTC2400IS8#PBF application, or LTC2400IS8#PBF equivalent, key selection criteria include its extended input range (–12.5% to +112.5% VREF), live-zero capability, 3-wire SPI/MICROWIRE interface, and guaranteed no missing codes across temperature.
Technical Context
The LTC2400IS8#PBF uses a delta-sigma architecture with integrated decimating FIR filter and auto-calibrating offset/full-scale correction every conversion cycle. Its digital filter provides ≥110dB rejection at 50Hz or 60Hz ±2% via FO pin configuration, or user-defined notch frequency (fEOSC/2560) when driven by external clock (2.56–307.2 kHz).
It features a flexible 3-wire serial interface where SCK operates bidirectionally-outputting internal clock (19.2 kHz) or accepting external clock (≤2 MHz)-and SDO delivers 32-bit frames including EOC, sign, extended-range, and 24-bit result with sub-LSBs. Input range extends from –0.125·VREF to +1.125·VREF, accommodating sensor overrange and signal-conditioning offsets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit with no missing codes-guarantees monotonicity and full dynamic range utilization. |
| INL Error | 4 ppm of VREF max at 5V reference-enables 6-digit DVM-grade linearity without calibration. |
| RMS Noise | 0.3 ppm of VREF (1.5 µVRMS at VREF = 5V)-supports <1 µV-level signal resolution in low-frequency sensing. |
| Supply Current | 200 µA typical in conversion mode; 20 µA in sleep-enables battery-powered instrumentation with >1-year runtime. |
| Notch Rejection | ≥110 dB at 50Hz or 60Hz ±2%-eliminates mains interference in industrial and medical analog front-ends. |
| Input Range | –0.125·VREF to +1.125·VREF-resolves sensor offset drift and amplifier saturation without external clamping. |
| Reference Range | 0.1 V to VCC-allows low-voltage references (e.g., 100 mV) for improved INL while maintaining compatibility with 5V systems. |
Pinout & Package
Package: 8-lead plastic SO (SO-8), 150 mil width, JEDEC MS-012AC. Pin 1 = VCC, Pin 4 = GND, Pin 5 = CS (active-low chip select), Pin 6 = SDO (3-state serial data out), Pin 7 = SCK (bidirectional serial clock), Pin 8 = FO (frequency control).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Positive supply input | 2.7–5.5 V operation; requires local 10 µF tantalum + 0.1 µF ceramic bypass to GND. |
| VREF (Pin 2) | Reference voltage input | Accepts 0.1 V to VCC; defines full-scale and noise floor; determines input range scaling. |
| VIN (Pin 3) | Analog input | Supports –0.125·VREF to +1.125·VREF; absolute max –0.3 V to VCC+0.3 V. |
| GND (Pin 4) | Ground reference | Single-point analog/digital/reference ground; must connect directly to ground plane. |
| CS (Pin 5) | Chip select input | Active-low wake-up signal; controls SDO output enable and initiates data transfer. |
| SDO (Pin 6) | Serial data output | 3-state output delivering 32-bit frame (EOC, sign, EXR, 24-bit result, sub-LSBs). |
| SCK (Pin 7) | Bidirectional clock | Outputs internal 19.2 kHz clock or accepts external SCK ≤2 MHz; mode set at power-up. |
| FO (Pin 8) | Frequency control input | Configures notch: GND = 60 Hz, VCC = 50 Hz, or external clock = fEOSC/2560 Hz notch. |
Key Features
| Feature | Design Value |
|---|---|
| No latency delta-sigma conversion | Single-cycle settling ensures each output corresponds exactly to the most recent conversion-critical for time-multiplexed multi-channel sensors. |
| Auto-calibration per cycle | Continuous offset and full-scale correction eliminates long-term drift and supply/temperature-induced errors without interrupting operation. |
| Extended input range | –12.5% to +112.5% VREF accommodates pre-amplifier DC offset, gain error, and overvoltage transients without external level-shifting circuitry. |
| Internal oscillator | Eliminates external crystals/capacitors; enables 50/60 Hz rejection with zero BOM cost and layout area savings. |
| 3-wire SPI/MICROWIRE interface | Compatible with standard microcontroller peripherals; no configuration registers required-reduces firmware complexity and initialization overhead. |
Applications
| Weight Scales | Direct Temperature Measurement |
|---|---|
Use Scenario: High-precision load cell readout in commercial and industrial weighing systems requiring 1:1,000,000 resolution. IC Role / Device Role / Timing Role: Primary 24-bit ADC capturing millivolt-level bridge outputs with live-zero compensation for tare offset. Use Value: 4 ppm INL and 0.3 ppm noise enable stable 6-digit display accuracy without recalibration across temperature and supply variation. | Use Scenario: RTD or thermistor-based temperature monitoring in HVAC, medical devices, and environmental sensors. IC Role / Device Role / Timing Role: Precision analog front-end digitizing low-drift, low-bandwidth thermal signals with built-in 50/60 Hz rejection. Use Value: Extended input range resolves sensor self-heating offset and amplifier bias errors; auto-calibration maintains ±0.01°C stability over time. |
| Gas Analyzers | Strain-Gage Transducers |
Use Scenario: Electrochemical or NDIR gas concentration detection requiring ultra-low-noise, high-linearity analog acquisition. IC Role / Device Role / Timing Role: Low-power, mains-immune ADC interfacing with current-output or low-voltage sensor elements. Use Value: ≥110 dB 50/60 Hz rejection prevents false alarms from ambient EMI; 200 µA supply current enables portable, battery-operated designs. | Use Scenario: Structural health monitoring and industrial force measurement using Wheatstone bridge configurations. IC Role / Device Role / Timing Role: Delta-sigma converter digitizing microvolt-level differential bridge outputs with programmable notch filtering. Use Value: Single-cycle settling allows rapid channel switching across multiple gages; internal oscillator removes timing jitter from external clocks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 24-bit delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPW | 24-bit, 4 kSPS, integrated PGA and burn-out current sources; requires external reference; no internal oscillator. | Better suited for multi-channel, programmable-gain sensor arrays; lacks live-zero and extended input range. | Select when PGA flexibility and sensor excitation are needed; avoid if SO-8 footprint and oscillator-free design are mandatory. |
| MAX11200EEE+ | 24-bit, 10 SPS, 1.6 µA sleep current, internal reference; no 50/60 Hz notch; smaller 12-lead TQFN package. | Optimized for ultra-low-power battery life; lacks configurable line-frequency rejection and extended input range. | Select for energy-constrained IoT nodes; avoid when mains interference immunity or SO-8 compatibility is required. |
Compared with ADS124S08IPW and MAX11200EEE+, the LTC2400IS8#PBF uniquely combines SO-8 packaging, internal oscillator, 50/60 Hz notch, and –12.5%/+112.5% input range-making it optimal for space-constrained, mains-immune, single-channel precision measurement where minimal external components are critical.
Availability
LTC2400IS8#PBF is available at Aetrix Electronics and suitable for weight scales, direct temperature measurement, and strain-gage transducer applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC2400IS8#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2400IS8#PBF belongs to ADI's precision delta-sigma ADC product line, designed specifically for low-power, high-accuracy sensor signal conditioning in environments with strong 50/60 Hz interference.
FAQ
What is the operating temperature range for the LTC2400IS8#PBF?
The LTC2400IS8#PBF is rated for industrial operation from –40°C to +85°C. This range is confirmed in the Absolute Maximum Ratings table and applies to all electrical specifications marked with the "G" symbol, including INL, noise, and supply current. The device is not rated for extended temperature or military-grade use.
Does the LTC2400IS8#PBF require external components for its oscillator function?
No, the LTC2400IS8#PBF does not require external components for oscillator operation. Its integrated oscillator enables 50Hz or 60Hz notch filtering when the FO pin is tied to VCC or GND respectively. No crystals, capacitors, or resistors are needed-this is explicitly stated in the FEATURES and APPLICATIONS INFORMATION sections.
How does the extended input range of the LTC2400IS8#PBF improve system design?
The LTC2400IS8#PBF supports an input range of –0.125·VREF to +1.125·VREF, allowing it to capture sensor overrange and amplifier offset without clipping. This eliminates need for external level-shifting or clamping circuits, simplifies front-end design, and improves reliability in systems with variable sensor output or thermal drift-directly enabling robust weight scale and strain-gage implementations.
Can the LTC2400IS8#PBF interface directly with a standard SPI microcontroller?
Yes, the LTC2400IS8#PBF uses a 3-wire interface compatible with SPI and MICROWIRE protocols. It requires only CS, SDO, and SCK connections. When configured for internal clock mode, SCK becomes an output; in external clock mode, it becomes an input. No mode registers or initialization sequences are needed-ensuring plug-and-play integration with common MCU SPI peripherals.
What is the conversion time of the LTC2400IS8#PBF under 60Hz rejection mode?
In 60Hz rejection mode (FO = GND), the LTC2400IS8#PBF has a typical conversion time of 133.33 ms, with min/max values of 130.66 ms and 136 ms respectively. This value is specified in the TIMING CHARACTERISTICS table and reflects single-cycle settling-no additional filter delay or latency is introduced.
LTC2400IS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 7.5
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- 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:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2400IS8#PBF FAQ
1.How can I place an order for LTC2400IS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2400IS8#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 LTC2400IS8#PBF reliable?
The price and inventory of LTC2400IS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2400IS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC2400IS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2400IS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2400IS8#PBF?
LTC2400IS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2400IS8#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 LTC2400IS8#PBF?
For technical support, including LTC2400IS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2400IS8#PBF requirements.
6.How does Aetrix verify that LTC2400IS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2400IS8#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 LTC2400IS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC2400IS8#PBF?
All LTC2400IS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2400IS8#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 LTC2400IS8#PBF part is unused and in its original packaging.
Return procedure for LTC2400IS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2400IS8#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…
