Analog Devices Inc. LTC2415-1IGN#TRPBF
- Part No.:
- LTC2415-1IGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC2415-1IGN#TRPBF.pdf
- Description:
- IC ADC 24BIT SIGMA-DELTA 16SSOP
- Quantity:
- Payment:

- Shipping:

Inventory:4,195
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Product details
Overview
LTC2415-1IGN#TRPBF from Analog Devices (formerly Linear Technology) is a micropower 24-bit delta-sigma analog-to-digital converter with differential input and reference, 87dB simultaneous 50Hz/60Hz normal-mode rejection, 2ppm INL, 0.23ppm RMS noise, and 2.7V–5.5V single-supply operation. It serves as a precision sensor digitizer in industrial instrumentation and high-resolution weight scales.
For engineers reviewing the LTC2415-1IGN#TRPBF datasheet, LTC2415-1IGN#TRPBF pinout, LTC2415-1IGN#TRPBF application, or LTC2415-1IGN#TRPBF equivalent, key selection criteria include its simultaneous 49Hz–61.2Hz line-frequency rejection, internal oscillator eliminating external timing components, GND-to-VCC common-mode input/reference flexibility, and 13.75Hz output rate in SSOP-16 package.
Technical Context
The LTC2415-1IGN#TRPBF implements a decimating FIR-based delta-sigma modulator with auto-calibration, achieving single-cycle settling for multiplexed sensor inputs. Its digital filter is fixed to reject 50Hz and 60Hz ±2% simultaneously when FO = GND, without requiring configuration registers.
It operates in three deterministic states-conversion, sleep, and data output-with no latency between conversion completion and 32-bit serial data availability on SDO. The 3-wire SPI/MICROWIRE-compatible interface uses CS to control wake-up and data transfer, while SCK functions bidirectionally depending on power-up state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24-bit with no missing codes-guarantees monotonicity and full dynamic range utilization across all operating conditions. |
| INL | 2 ppm of VREF-enables ≤0.00005% full-scale error in precision bridge or RTD measurements. |
| RMS Noise | 0.23 ppm of VREF-supports 21.5 effective number of bits (ENOB) at 13.75 Hz output rate. |
| Line Rejection | ≥87 dB over 49 Hz–61.2 Hz-rejects both 50 Hz and 60 Hz interference simultaneously without external notch filters. |
| Supply Current | 200 µA in conversion mode, 20 µA in sleep-enables battery-powered portable instrumentation with multi-day runtime. |
| Input Range | ±0.5 × VREF differential, with VINCM and VREFCM independently adjustable from GND to VCC-supports ratiometric remote sensing and wide common-mode offset compensation. |
| Reference Range | 0.1 V to VCC differential-allows use of low-voltage references (e.g., 1.25 V) or direct ratiometric connection to sensor excitation. |
Pinout & Package
Package: 16-lead plastic SSOP (GN), 0.150" wide, compatible with SO-8 footprint. Thermal resistance θJA = 95°C/W; max junction temperature 125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 7, 8, 9, 10, 15, 16) | Ground reference | Seven dedicated ground pins internally tied for low-impedance return paths and optimal VCC decoupling-each must connect to PCB ground plane. |
| VCC (Pin 2) | Positive supply | 2.7 V–5.5 V single supply; requires 10 µF tantalum + 0.1 µF ceramic bypass close to pin for stable operation. |
| REF+ / REF– (Pins 3, 4) | Differential reference inputs | Accept 0.1 V–VCC differential voltage; common-mode range independent of input-enables remote Kelvin sensing. |
| IN+ / IN– (Pins 5, 6) | Differential analog inputs | Support –0.3 V to VCC + 0.3 V absolute range; full-scale differential input = ±0.5 × VREF. |
| FO (Pin 14) | Frequency control | Logic input selecting internal 50/60 Hz rejection (GND) or external clock mode-defines notch center at fEOSC/2560. |
| CS (Pin 11) | Chip select | Active-low enable: initiates data output and wakes ADC; HIGH forces automatic sleep mode after conversion. |
| SDO (Pin 12) | Serial data output | Three-state output delivering 32-bit conversion result; high-Z when CS = HIGH; status indicator during conversion/sleep. |
| SCK (Pin 13) | Serial clock | Bidirectional: outputs internal clock during data transfer (if pulled high at power-up), or accepts external clock-no register programming needed. |
Key Features
| Feature | Design Value |
|---|---|
| No-latency ∆Σ architecture | One-to-one correspondence between conversion cycle and output data-eliminates filter delay in multiplexed sensor systems. |
| Simultaneous 50/60 Hz rejection | ≥87 dB rejection across 49–61.2 Hz band with FO = GND-removes need for dual-frequency external filtering in global instrumentation. |
| Internal oscillator | No external crystal, capacitor, or resistor required-reduces BOM count and layout sensitivity while maintaining precise line-frequency rejection. |
| GND-to-VCC common-mode flexibility | VINCM and VREFCM independently set anywhere in supply rail-enables direct interfacing to unbuffered strain gages or thermocouples without level-shifting circuitry. |
| Auto shutdown | 20 µA sleep current with CS = HIGH-extends battery life in portable DVMs and handheld test equipment. |
Applications
| Weight Scales | Industrial Process Control |
|---|---|
Use Scenario: High-accuracy load cell readout in platform or hopper scales used in food processing and pharmaceutical batching. IC Role / Device Role / Timing Role: Precision digitizer converting mV-level bridge output to 24-bit digital values with simultaneous 50/60 Hz noise immunity. Use Value: Enables 1:1,000,000 resolution (0.0001% FS) and eliminates line-frequency-induced drift in factory-floor environments. | Use Scenario: Monitoring pressure, flow, or level transmitters in chemical plants where EMI and AC mains coupling are persistent. IC Role / Device Role / Timing Role: Primary ADC in loop-powered 4–20 mA transmitter front-end, rejecting 50/60 Hz interference from adjacent motor drives. Use Value: Maintains ≥87 dB normal-mode rejection without external notch filters-reducing design complexity and calibration overhead. |
| Direct Temperature Measurement | 6-Digit DVMs |
Use Scenario: Cold-junction compensation and RTD linearization in benchtop temperature calibrators. IC Role / Device Role / Timing Role: Ratiometric ADC measuring Pt100/Pt1000 resistance via constant-current excitation and differential reference. Use Value: 2ppm INL and 0.23ppm RMS noise support <0.001 °C measurement repeatability over 0–100 °C range. | Use Scenario: Core ADC in portable 6½-digit digital multimeters requiring high DC accuracy and low drift. IC Role / Device Role / Timing Role: Main measurement engine digitizing scaled input with programmable reference and auto-zero capability. Use Value: Single-cycle settling and no-latency output allow fast auto-ranging without data invalidation or dead time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution 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; 100 dB 50/60 Hz rejection only with external sync. | Targeted at sensor signal chains needing programmable gain and diagnostics-not optimized for ultra-low-noise, no-PGA direct sensor digitization. | Select when system requires on-chip PGA, sensor diagnostics, or higher throughput; not drop-in due to different pinout and interface protocol. |
| MAX11206ETL+ | 24-bit, 10 SPS, 110 dB 50/60 Hz rejection, but only single-ended reference; no simultaneous dual-frequency notch; 1.8 V–3.6 V supply only. | Designed for low-voltage portable medical sensors-not suitable for industrial 2.7–5.5 V systems or differential reference architectures. | Select for battery-powered medical devices with strict voltage constraints; incompatible with LTC2415-1's differential reference and wide supply range. |
Compared with ADS124S08IPW and MAX11206ETL+, the LTC2415-1IGN#TRPBF uniquely delivers simultaneous 50/60 Hz rejection in a no-PGA, differential-reference architecture with true no-latency output-making it optimal for industrial weigh scales and precision DVMs where simplicity, noise immunity, and supply flexibility are critical.
Availability
LTC2415-1IGN#TRPBF is available at Aetrix Electronics and suitable for industrial process control, precision weight scales, and 6-digit DVMs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for LTC2415-1IGN#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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2415-1IGN#TRPBF belongs to ADI's legacy Linear Technology precision delta-sigma ADC family, engineered for ultra-low-noise, high-accuracy sensor digitization in harsh electrical environments with minimal external components.
FAQ
What is the maximum output data rate of the LTC2415-1IGN#TRPBF?
The LTC2415-1IGN#TRPBF has a fixed output data rate of 13.75 Hz when using its internal oscillator with FO = GND. With an external oscillator, the rate becomes 10278/fEOSC (kHz), allowing adjustment-for example, 20 Hz at 513.9 kHz. This rate is optimized for high-resolution, low-noise measurements rather than speed.
Does the LTC2415-1IGN#TRPBF require external passive components for its internal oscillator?
No, the LTC2415-1IGN#TRPBF integrates a precision internal oscillator that requires no external capacitors, crystals, or resistors. This eliminates timing-component variability and board space, directly enabling its specified 87 dB simultaneous 50/60 Hz rejection without calibration or trimming.
Can the LTC2415-1IGN#TRPBF accept a 1.25 V differential reference voltage?
Yes, the LTC2415-1IGN#TRPBF supports differential reference voltages from 0.1 V to VCC. A 1.25 V reference is fully valid and commonly used with low-voltage precision references or ratiometric sensor excitation-maintaining full 24-bit resolution and specified INL/noise performance.
How does the FO pin configure the LTC2415-1IGN#TRPBF for simultaneous 50/60 Hz rejection?
The FO pin must be tied to GND to activate the LTC2415-1IGN#TRPBF's simultaneous 50/60 Hz rejection mode. In this state, its internal digital filter provides ≥87 dB normal-mode rejection across 49–61.2 Hz-covering both frequencies and their ±2% tolerance bands without external intervention.
What is the purpose of the seven GND pins on the LTC2415-1IGN#TRPBF SSOP package?
The seven GND pins (1, 7, 8, 9, 10, 15, 16) on the LTC2415-1IGN#TRPBF provide low-impedance return paths for analog, digital, and substrate currents, minimizing ground bounce and improving PSRR. All seven must be individually connected to the PCB ground plane-failure to do so degrades noise performance and line rejection.
LTC2415-1IGN#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):
- 13.75
- 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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2415-1IGN#TRPBF FAQ
1.How can I place an order for LTC2415-1IGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2415-1IGN#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 LTC2415-1IGN#TRPBF reliable?
The price and inventory of LTC2415-1IGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2415-1IGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2415-1IGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2415-1IGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2415-1IGN#TRPBF?
LTC2415-1IGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2415-1IGN#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 LTC2415-1IGN#TRPBF?
For technical support, including LTC2415-1IGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2415-1IGN#TRPBF requirements.
6.How does Aetrix verify that LTC2415-1IGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2415-1IGN#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 LTC2415-1IGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2415-1IGN#TRPBF?
All LTC2415-1IGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2415-1IGN#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 LTC2415-1IGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC2415-1IGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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