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Analog Devices Inc. LTC2430CGN#PBF
- Part No.:
- LTC2430CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2430CGN#PBF.pdf
- Description:
- IC ADC 20BIT SIGMA-DELTA 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,717
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Product details
Overview
LTC2430CGN#PBF from Analog Devices (formerly Linear Technology) is a 20-bit micropower delta-sigma analog-to-digital converter with differential input and reference, integrated oscillator, 3ppm INL, 0.56ppm RMS noise, and single-cycle settling-designed for high-precision sensor digitization in weight scales, strain gauge transducers, and industrial process control.
For engineers reviewing the LTC2430CGN#PBF datasheet, LTC2430CGN#PBF pinout, LTC2430CGN#PBF application, or LTC2430CGN#PBF equivalent, this page delivers verified specifications including 2.7V–5.5V supply operation, 110dB 50/60Hz notch rejection, 200µA conversion current, GND-to-VCC common-mode input/reference range, and SPI/MICROWIRE-compatible 3-wire interface.
Technical Context
The LTC2430CGN#PBF implements a decimating FIR filter with internal oscillator-based clocking, enabling deterministic 50Hz or 60Hz line-frequency rejection via FO pin configuration (GND = 60Hz, VCC = 50Hz). Its auto-calibration engine performs offset and full-scale correction every conversion cycle without latency or external intervention.
It supports both internal SCK output mode (19.2kHz) and external SCK input mode (up to 2MHz), with configurable conversion time (130.9–163.4ms depending on FO state) and flexible ratiometric measurement using any 0.1V–VCC differential reference voltage while maintaining ±120dB DC common-mode rejection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 20-bit with no missing codes-guarantees monotonicity and unambiguous digital representation across full scale. |
| INL | 3ppm of VREF-enables sub-10ppm system-level accuracy without post-conversion linearization. |
| RMS Noise | 0.56ppm (2.8µVRMS at 5V)-supports 20.8 ENOB in low-frequency precision measurements. |
| Supply Current | 200µA in conversion mode, 4µA in autosleep-ideal for battery-powered instrumentation with duty-cycled sampling. |
| Common-Mode Rejection | >120dB DC, >140dB at 50/60Hz-rejects ground shifts and power-line interference in noisy industrial environments. |
| Input Range | ±0.5VREF differential, with IN+/IN– common mode from GND–0.3V to VCC+0.3V-enables direct connection to bridge sensors without level-shifting. |
| Reference Range | 0.1V to VCC differential, REF+/REF– common mode independently set from GND to VCC-supports remote sensing and ratiometric configurations. |
Pinout & Package
Package: 10-lead MSOP (GN), 3mm × 3mm, exposed pad, RoHS-compliant, rated for 0°C to 70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Positive supply input | 2.7V–5.5V operation; requires local 10µF tantalum + 0.1µF ceramic bypass to GND for noise immunity. |
| REF+ / REF– (Pins 2, 3) | Differential reference inputs | Accept 0.1V–VCC differential voltage; common-mode range spans GND to VCC-enables true ratiometric sensing. |
| IN+ / IN– (Pins 4, 5) | Differential analog inputs | Support ±0.5VREF full-scale range; absolute voltage range extends beyond rails (GND–0.3V to VCC+0.3V). |
| GND (Pin 6) | Analog/digital ground | Single low-impedance ground connection required; must be tied to system ground plane. |
| CS (Pin 7) | Active-low chip select | Wakes ADC from autosleep (4µA); enables SDO output; falling edge initiates data transfer or new conversion. |
| FO (Pin 10) | Frequency control input | Configures internal oscillator: GND → 60Hz notch, VCC → 50Hz notch, external clock → fEOSC/2560 null frequency. |
| SCK (Pin 9) | Bidirectional serial clock | Auto-configured at power-up: outputs 19.2kHz internal clock or accepts external SCK up to 2MHz. |
| SDO (Pin 8) | Three-state serial data output | Outputs 24-bit conversion result; high-Z when CS = HIGH; also serves as conversion status indicator during sleep/conversion. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency delta-sigma architecture | Single-cycle digital filter settling ensures each output corresponds precisely to its input sample-critical for multiplexed sensor arrays. |
| Per-conversion auto-calibration | Continuous offset and full-scale correction eliminates drift-induced errors over temperature, time, and supply variation. |
| Flexible 50/60Hz rejection | Hardware-selectable notch via FO pin-no software configuration or external components needed for EMI-hardened designs. |
| True differential input & reference | Independent GND-to-VCC common-mode ranges for IN+/IN– and REF+/REF– enable direct bridge and thermocouple interfacing. |
| SPI/MICROWIRE-compatible interface | 3-wire protocol with no control registers simplifies firmware integration and reduces host MCU resource usage. |
Applications
| Weight Scales | Strain Gauge Transducers |
|---|---|
Use Scenario: High-resolution load cell readout in commercial and industrial weighing systems requiring <10ppm repeatability. IC Role / Device Role / Timing Role: Direct digitizer of mV-level bridge outputs with ratiometric reference derived from excitation voltage. Use Value: 3ppm INL and 0.56ppm RMS noise enable 1:1,000,000 dynamic range without averaging or calibration tables. | Use Scenario: Precision force and pressure measurement in test equipment and structural monitoring. IC Role / Device Role / Timing Role: Low-drift ADC capturing microvolt-level differential signals from 4-wire Wheatstone bridges. Use Value: >120dB DC common-mode rejection suppresses lead resistance errors; per-cycle calibration maintains accuracy across thermal cycles. |
| Industrial Process Control | Data Acquisition Systems |
Use Scenario: Analog input modules for PLCs and distributed I/O systems operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Isolated channel ADC with hardware 50/60Hz notch filtering and rail-to-rail common-mode tolerance. Use Value: 140dB 50Hz/60Hz normal-mode rejection eliminates need for external notch filters or synchronous sampling logic. | Use Scenario: Portable or benchtop DVMs and multichannel DAQ systems requiring stable 20-bit resolution without FPGA support. IC Role / Device Role / Timing Role: Standalone ADC with integrated oscillator and SPI interface-reduces BOM count and layout complexity. Use Value: 200µA conversion current and 4µA autosleep enable long battery life; 24-bit output format simplifies host data parsing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPWR | 24-bit resolution, 2.5V internal reference, fixed 50/60Hz rejection, no external reference support | Requires external signal conditioning for bridge sensors; lacks GND-to-VCC reference common-mode flexibility | Select when higher resolution is mandatory and ratiometric reference is not required. |
| LTC2410CGN#PBF | 24-bit, pin-compatible, higher resolution but 4× higher supply current (800µA), no FO pin for 50/60Hz selection | Fixed 50Hz rejection only; less suitable for global deployments requiring 60Hz compatibility | Select when ultimate resolution outweighs power budget constraints and regional line frequency is fixed. |
Compared with ADS124S08IPWR and LTC2410CGN#PBF, the LTC2430CGN#PBF uniquely balances 20-bit precision, ultra-low power (200µA), hardware-selectable 50/60Hz rejection, and full ratiometric flexibility-making it optimal for globally deployed, battery-aware instrumentation where reference design freedom is critical.
Availability
LTC2430CGN#PBF is available at Aetrix Electronics and suitable for weight scales, strain gauge transducers, and industrial process control systems requiring stable component supply, long-term manufacturability, and guaranteed RoHS-compliant sourcing.
Supply support for LTC2430CGN#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2430CGN#PBF belongs to ADI's legacy Linear Technology precision delta-sigma ADC family, engineered specifically for low-power, high-accuracy sensor digitization in harsh electrical environments-emphasizing ease of use, inherent stability, and minimal external component count.
FAQ
What is the operating temperature range for the LTC2430CGN#PBF?
The LTC2430CGN#PBF is specified for 0°C to 70°C ambient operation (Commercial grade). This is confirmed by the "C" suffix in the part number and the Absolute Maximum Ratings table in the official datasheet, which defines the LTC2430C variant's operating temperature range explicitly. The device uses an MSOP-10 package with exposed pad optimized for this range.
Does the LTC2430CGN#PBF require external passive components for its internal oscillator?
No, the LTC2430CGN#PBF does not require external passive components for its internal oscillator. As stated in the datasheet features and description, the internal oscillator operates without external frequency-setting components-eliminating crystals, capacitors, or resistors. This simplifies layout and improves reliability in space-constrained or high-vibration applications.
Can the LTC2430CGN#PBF accept a 0.1V reference voltage while maintaining specified performance?
Yes, the LTC2430CGN#PBF supports differential reference voltages as low as 0.1V, as confirmed in the Electrical Characteristics table under "VREF Reference Differential Voltage Range". At 0.1V reference, key specs including 3ppm INL and 0.56ppm RMS noise remain valid per datasheet conditions, though full-scale error increases slightly-enabling ultra-low-voltage sensor interfaces without sacrificing linearity.
How does the FO pin configure 50Hz vs 60Hz rejection in the LTC2430CGN#PBF?
The FO pin configures rejection frequency via hardwired logic: connecting FO to GND selects 60Hz ±2% notch filtering, while connecting FO to VCC selects 50Hz ±2%. This is implemented in the internal digital filter's decimation ratio and requires no software setup. The datasheet confirms this behavior in the "Converter Operation" and "Pin Functions" sections, with timing diagrams showing corresponding conversion times.
Is the LTC2430CGN#PBF pin-compatible with the LTC2410 series?
Yes, the LTC2430CGN#PBF is pin-compatible with the 24-bit LTC2410/LTC2411 series in the same MSOP-10 package, as explicitly stated in the datasheet's "Features" section: "Pin Compatible with 24-Bit LTC2410/LTC2411". This allows drop-in resolution upgrades in existing layouts, though users must account for differences in supply current, resolution, and FO pin functionality.
LTC2430CGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 20
- Sampling Rate (Per Second):
- 7.5
- 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:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2430CGN#PBF FAQ
1.How can I place an order for LTC2430CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2430CGN#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 LTC2430CGN#PBF reliable?
The price and inventory of LTC2430CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2430CGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC2430CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2430CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2430CGN#PBF?
LTC2430CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2430CGN#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 LTC2430CGN#PBF?
For technical support, including LTC2430CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2430CGN#PBF requirements.
6.How does Aetrix verify that LTC2430CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2430CGN#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 LTC2430CGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC2430CGN#PBF?
All LTC2430CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2430CGN#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 LTC2430CGN#PBF part is unused and in its original packaging.
Return procedure for LTC2430CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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