My Inquiry
My Account
Analog Devices Inc. LTC2415CGN#TRPBF
- Part No.:
- LTC2415CGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2415CGN#TRPBF.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2415CGN#TRPBF from Analog Devices (formerly Linear Technology) is a micropower 24-bit delta-sigma analog-to-digital converter with differential input and reference, 2 ppm INL, 0.23 ppm RMS noise, and single-cycle settling time. It operates from 2.7V to 5.5V, supports 50 Hz or 60 Hz line-frequency rejection via pin-selectable internal oscillator, and targets high-precision sensor digitization in industrial instrumentation.
For engineers reviewing the LTC2415CGN#TRPBF datasheet, LTC2415CGN#TRPBF pinout, LTC2415CGN#TRPBF application, or LTC2415CGN#TRPBF equivalent, key selection criteria include its 24-bit no-latency architecture, differential common-mode range (GND to VCC), integrated oscillator eliminating external timing components, and 15 Hz output rate with configurable 50/60 Hz notch filtering.
Technical Context
The LTC2415CGN#TRPBF implements a decimating FIR-based delta-sigma modulator with auto-calibration, delivering true 24-bit resolution without missing codes. Its digital filter is synchronized to an on-chip oscillator, enabling precise 50 Hz or 60 Hz rejection depending on FO pin state-GND for 60 Hz, VCC for 50 Hz.
It uses a 3-wire SPI-compatible interface where SCK operates bidirectionally: as output during internal clock mode (driven by internal oscillator at ~19.2 kHz), or as input during external clock mode. Conversion completes in 65.4–68.1 ms (typical), with data output occurring immediately after conversion with zero latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit, no missing codes-guarantees monotonicity and full dynamic range utilization for precision measurement. |
| INL | 2 ppm of VREF-enables sub-1 µV linearity error with 2.5 V reference, critical for 6½-digit DVMs and strain gage systems. |
| RMS Noise | 0.23 ppm of VREF (1.1 µVRMS @ 5 V ref)-supports 21.5 effective bits at 15 Hz output rate in low-noise sensor interfaces. |
| Input Rejection | 110 dB normal-mode rejection at 50/60 Hz ±2%-rejects mains interference without external filtering in weigh scales and gas analyzers. |
| Supply Current | 200 µA in conversion mode, 20 µA in sleep-enables battery-powered portable instrumentation with multi-day operation. |
| Common-Mode Range | GND to VCC on both IN± and REF±-allows direct ratiometric sensing with unbuffered bridge transducers and remote voltage references. |
| Output Rate | 15 Hz-optimized for stable low-frequency signals such as temperature, pressure, and weight with minimal aliasing risk. |
Pinout & Package
Package: 16-lead plastic SSOP (GN), 0°C to 70°C operating temperature, SO-8 footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,7,8,9,10,15,16) | Ground reference | Seven dedicated ground pins internally bonded for low-impedance return paths and optimal VCC decoupling-requires connection to solid ground plane. |
| VCC (Pin 2) | Positive supply | 2.7 V to 5.5 V single supply; requires local 10 µF tantalum + 0.1 µF ceramic bypass to Pin 1 GND. |
| REF+ / REF– (Pins 3,4) | Differential reference inputs | Accept 0.1 V to VCC differential voltage; common-mode independently set from GND to VCC-enables flexible ratiometric or remote sensing topologies. |
| IN+ / IN– (Pins 5,6) | Differential analog inputs | Support –0.5·VREF to +0.5·VREF differential range; common-mode range extends beyond rails (GND–0.3 V to VCC+0.3 V) for robust signal interfacing. |
| FO (Pin 14) | Frequency control | Selects internal oscillator notch: GND → 60 Hz rejection (or simultaneous 50/60 Hz for LTC2415-1), VCC → 50 Hz rejection-no external components required. |
| CS (Pin 11) | Chip select | Active-low enable: LOW initiates data output and wakes ADC; HIGH forces sleep mode (20 µA) and places SDO in Hi-Z. |
| SDO (Pin 12) | Serial data output | 3-state output delivering 32-bit conversion result; transitions to Hi-Z when CS = HIGH-eliminates bus contention in multi-device systems. |
| SCK (Pin 13) | Serial clock | Bidirectional: outputs internal clock (~19.2 kHz) when idle, accepts external clock up to 2 MHz-supports both autonomous and controller-synchronized readout. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency ∆Σ architecture | Single-cycle settling enables true multiplexed measurements-each conversion corresponds directly to one output word, no filter delay or redundant samples. |
| Configurable 50/60 Hz rejection | FO pin selects internal notch frequency without external components-reduces design complexity and BOM count in global instrumentation. |
| Differential input & reference with rail-to-rail common-mode | IN± and REF± accept common-mode voltages from GND to VCC-supports direct connection to unbuffered Wheatstone bridges and isolated reference sources. |
| Auto-shutdown sleep mode | 20 µA quiescent current when CS = HIGH-extends battery life in portable DMMs and handheld sensors without software intervention. |
| Integrated oscillator | Eliminates need for crystals, resonators, or RC networks-improves long-term stability and reduces PCB area vs. externally clocked ADCs. |
Applications
| Weight Scales | Gas Analyzers |
|---|---|
Use Scenario: High-resolution digitization of millivolt-level outputs from load cell bridges under varying ambient temperatures and AC line noise. IC Role / Device Role / Timing Role: Direct sensor digitizer with 24-bit resolution, 15 Hz output, and 110 dB 50/60 Hz rejection-acts as the primary metrology engine. Use Value: Eliminates external anti-aliasing filters and programmable gain stages; achieves <1 µg repeatability in Class III legal-for-trade platforms. | Use Scenario: Low-drift conversion of electrochemical sensor outputs in ppm-level toxic gas detection systems with strict EMC requirements. IC Role / Device Role / Timing Role: Precision front-end ADC with DC common-mode rejection >140 dB and 0.23 ppm RMS noise-ensures stable baseline and low false-alarm rates. Use Value: Enables 16-hour battery operation per charge while maintaining NIST-traceable accuracy across 0–50°C ambient range. |
| Strain Gage Transducers | 6-Digit DVMs |
Use Scenario: Digitizing microvolt-level differential signals from 350 Ω or 1 kΩ strain gages in structural health monitoring nodes deployed outdoors. IC Role / Device Role / Timing Role: Ratiometric ADC with independent REF± and IN± common-mode ranges-accepts excitation-referenced bridge outputs without level-shifting circuitry. Use Value: Delivers 21.5 ENOB at 15 Hz with <2 ppm gain drift over temperature-replaces costly discrete instrumentation amplifier + 20-bit ADC solutions. | Use Scenario: Core ADC in benchtop digital multimeters requiring 6½-digit resolution, low thermal EMF, and immunity to 50/60 Hz magnetic fields. IC Role / Device Role / Timing Role: Metrology-grade converter with 2 ppm INL, 2.5 ppm gain error, and auto-calibration-serves as the primary measurement engine. Use Value: Achieves ±1 ppm basic accuracy without factory calibration; supports IEEE-488 interface synchronization via CS/SCK timing control. |
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 |
|---|---|---|---|
| ADS124S08IPW | 24-bit, 4 kSPS max, integrated PGA and burnout current sources; requires external crystal; 110 dB 50/60 Hz rejection only with external sync. | Targeted at multi-channel sensor arrays with programmable gain; less suitable for ultra-low-power standalone bridge digitizers. | Choose ADS124S08IPW when multi-channel scanning, on-chip PGA, or burnout diagnostics are required-LTC2415CGN#TRPBF offers lower power and simpler clocking. |
| MAX11206ETK+ | 24-bit, 10 SPS, internal oscillator, 105 dB 50/60 Hz rejection, 2.5 V reference fixed; no independent REF– pin. | Optimized for low-cost portable meters; lacks fully differential reference and rail-to-rail common-mode flexibility. | Choose MAX11206ETK+ for cost-sensitive, single-supply 2.5 V systems where REF– grounding is acceptable-LTC2415CGN#TRPBF provides superior common-mode range and ratiometric design freedom. |
Compared with ADS124S08IPW and MAX11206ETK+, the LTC2415CGN#TRPBF delivers superior power efficiency (200 µA vs. >1 mA), eliminates external timing components, and supports fully differential reference configurations essential for remote sensing and high-EMI environments.
Availability
LTC2415CGN#TRPBF is available at Aetrix Electronics and suitable for weight scales, gas analyzers, strain gage transducers, and 6-digit DVMs requiring stable component supply, long-term manufacturability, and guaranteed traceable sourcing.
Supply support for LTC2415CGN#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 LTC2415CGN#TRPBF belongs to ADI's legacy Linear Technology precision delta-sigma ADC family, designed specifically for low-power, high-accuracy sensor digitization in instrumentation, process control, and portable test equipment.
FAQ
What is the maximum output data rate of the LTC2415CGN#TRPBF?
The LTC2415CGN#TRPBF has a fixed output data rate of 15 Hz when using its internal oscillator. This rate is optimized for low-noise, high-resolution measurements and cannot be increased via configuration-higher speeds require external clocking, which is not supported by this variant. The LTC2415CGN#TRPBF delivers one valid 24-bit conversion result every 66.7 ms.
Does the LTC2415CGN#TRPBF support external clocking?
No, the LTC2415CGN#TRPBF does not support external clocking. It is the standard LTC2415 variant with internal oscillator-only operation. External clocking is supported only by the LTC2415-1CGN#TRPBF and other -1 suffix variants. Attempting to drive the FO pin with an external signal on the LTC2415CGN#TRPBF will not yield valid conversion timing.
What is the function of the FO pin on the LTC2415CGN#TRPBF?
On the LTC2415CGN#TRPBF, the FO pin selects the internal notch frequency: tying FO to GND configures 60 Hz line-frequency rejection, while tying FO to VCC configures 50 Hz rejection. This pin has no effect on conversion speed or data format-it solely determines the digital filter's first null location for optimal mains interference suppression.
Can the LTC2415CGN#TRPBF operate with a 2.5 V reference and 3.3 V supply simultaneously?
Yes, the LTC2415CGN#TRPBF supports independent supply and reference voltages. With VCC = 3.3 V, REF+ can be set to 2.5 V and REF– to GND, yielding a 2.5 V differential reference. The full-scale input range becomes ±1.25 V, and both IN± and REF± common-mode voltages may be set anywhere between GND and VCC-enabling flexible ratiometric and isolated sensing architectures.
How many ground pins does the LTC2415CGN#TRPBF have, and why are they important?
The LTC2415CGN#TRPBF has seven dedicated ground pins (Pins 1, 7, 8, 9, 10, 15, 16), all internally connected. These provide low-impedance return paths for analog, digital, and power currents, minimizing ground bounce and improving PSRR. All seven must be connected to a solid ground plane-omitting any compromises noise performance, INL, and 50/60 Hz rejection integrity in the LTC2415CGN#TRPBF.
LTC2415CGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 15
- 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:
- -
LTC2415CGN#TRPBF FAQ
1.How can I place an order for LTC2415CGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2415CGN#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 LTC2415CGN#TRPBF reliable?
The price and inventory of LTC2415CGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2415CGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2415CGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2415CGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2415CGN#TRPBF?
LTC2415CGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2415CGN#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 LTC2415CGN#TRPBF?
For technical support, including LTC2415CGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2415CGN#TRPBF requirements.
6.How does Aetrix verify that LTC2415CGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2415CGN#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 LTC2415CGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2415CGN#TRPBF?
All LTC2415CGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2415CGN#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 LTC2415CGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC2415CGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2415CGN#TRPBF 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…
