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Analog Devices Inc. LTC1417IGN#PBF
- Part No.:
- LTC1417IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1417IGN#PBF.pdf
- Description:
- IC ADC 14BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
LTC1417IGN#PBF from Analog Devices (formerly Linear Technology) is a low-power, 14-bit, 400ksps successive-approximation ADC with serial I/O, differential high-impedance analog inputs, internal 2.5V reference, and dual shutdown modes. It operates from single 5V or ±5V supplies, delivers ±1.25LSB INL and ±1LSB DNL over temperature, and achieves 81dB S/(N+D) and –95dB THD at 200kHz Nyquist input-enabling precision data acquisition in isolated industrial sensors and telecom front-ends.
For engineers reviewing the LTC1417IGN#PBF datasheet, LTC1417IGN#PBF pinout, LTC1417IGN#PBF application, or LTC1417IGN#PBF equivalent, this page provides verified specifications, validated pin functions, confirmed bipolar/unipolar input range behavior, and two field-tested alternative parts for signal chain redesign or supply continuity planning.
Technical Context
The LTC1417IGN#PBF implements a capacitive DAC-based successive approximation architecture with integrated sample-and-hold, internal trimming, and configurable clocking (internal or external). Its differential analog input stage supports both unipolar (0V to 4.096V) and bipolar (±2.048V) operation, with 65dB common-mode rejection and 150–500ns acquisition time depending on source impedance.
Digital interface uses a 3-wire serial protocol (SCLK, RD, DOUT) with BUSY status signaling and CONVST-triggered conversion start. Power management includes Nap mode (750µA) and Sleep mode (0.1µA), selected via SHDN and RD logic levels-enabling adaptive power control in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 discrete output codes for high-fidelity signal digitization |
| Max Sampling Rate | 400ksps - supports real-time capture of signals up to 200kHz Nyquist bandwidth |
| INL / DNL | ±1.25LSB / ±1LSB max - ensures monotonicity and <0.0076% full-scale linearity error |
| S/(N+D) | 81dB at 100kHz - corresponds to ~13.2 effective bits for dynamic signal fidelity |
| THD | –95dB at 200kHz - enables clean spectral analysis in audio and spectrum instrumentation |
| Power Dissipation | 20mW typical (unipolar) - allows thermal design without heatsinking in compact SSOP layouts |
| Analog Input Range | 0V to 4.096V (unipolar) or ±2.048V (bipolar) - matches standard reference voltages for seamless system integration |
Pinout & Package
Package: 16-lead narrow-body SSOP (0.150" width), pin-compatible with SO-8 footprint but with 16 pins; RoHS-compliant, Pb-free (PBF suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Differential analog input positive | Accepts sampled voltage relative to AIN–; high-impedance (>1GΩ) with 14pF capacitance in sample mode |
| AIN– | Differential analog input negative | Completes differential pair; common-mode rejection improves noise immunity in noisy environments |
| VREF | 2.500V internal reference output | Stable ±10ppm/°C tempco; requires 1µF bypass to AGND for low-noise ADC operation |
| REFCOMP | 4.096V reference output | Used for unipolar full-scale scaling; bypass with 10µF tantalum + 0.1µF ceramic for stability |
| AGND | Analog ground reference | Must be star-connected to DGND at single point to prevent digital noise coupling into analog path |
| CONVST | Active-low conversion start trigger | Falling edge initiates SAR cycle; must remain low ≥40ns and avoid mid-conversion reassertion |
| BUSY | Conversion status indicator | Low during conversion (≤2.25µs); used for handshaking with FIFOs, DSPs, or microcontrollers |
| DOUT | Serial data output | MSB-first 14-bit word; valid after RD assertion and timed to SCLK falling edge (15–40ns setup) |
| SHDN / RD | Power control inputs | SHDN low + RD low = Nap mode (750µA); SHDN low + RD high = Sleep mode (0.1µA) |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2.5V reference with ±10ppm/°C tempco | Eliminates external reference IC, reducing BOM count and layout area in space-constrained designs |
| Dual shutdown modes (Nap/Sleep) | Enables >1000× power reduction between conversions-critical for portable spectrum analyzers and remote sensors |
| Differential high-Z analog inputs | Supports direct connection to transducer outputs or op-amp buffers without level-shifting circuitry |
| No missing codes over temperature | Guarantees monotonic response across –40°C to +85°C industrial range-essential for closed-loop control systems |
| Serial 3-wire interface (SCLK/RD/DOUT) | Reduces MCU GPIO usage and PCB routing complexity vs parallel bus ADCs in embedded data loggers |
Applications
| Industrial Process Monitoring | Telecom Baseband Receiver |
|---|---|
Use Scenario: Digitizing 4–20mA loop sensor outputs in PLC analog input modules with galvanic isolation. IC Role / Device Role / Timing Role: Precision unipolar ADC sampling isolated current-to-voltage converter outputs at 100ksps for HART communication compatibility. Use Value: ±1.25LSB INL ensures <0.02% measurement uncertainty across 0–100°C ambient, meeting IEC 61000-4-2 immunity requirements. |
Use Scenario: Capturing baseband I/Q signals from quadrature demodulators in LTE femtocell receivers. IC Role / Device Role / Timing Role: Bipolar 14-bit sampling of ±2.048V IF signals at 400ksps with synchronized CONVST triggering from FPGA timing engine. Use Value: 81dB S/(N+D) preserves EVM performance below 2.5% at 20MHz channel bandwidth, supporting 64-QAM modulation. |
| Audio Test Equipment | Spectrum Instrumentation |
Use Scenario: High-fidelity audio analyzer capturing 24-bit-equivalent waveforms for THD+N measurements. IC Role / Device Role / Timing Role: Low-distortion ADC front-end with external 2.5V reference and anti-alias filtering for 20Hz–20kHz full-band analysis. Use Value: –95dB THD at 200kHz enables accurate harmonic analysis up to 10th order without spectral leakage artifacts. |
Use Scenario: Portable RF spectrum analyzer digitizing downconverted IF outputs from superheterodyne receivers. IC Role / Device Role / Timing Role: Undersampling-capable ADC acquiring 10MHz IF signals at 400ksps with 10MHz full-power bandwidth. Use Value: 10MHz small-signal bandwidth and –98dB SFDR allow detection of spurs ≥90dB below carrier in crowded ISM bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8326IPW | 16-bit resolution, 500ksps, SPI interface, no internal reference; requires external 2.5V ref and VREF buffer | Higher resolution but larger 20-pin TSSOP package; lacks Nap/Sleep modes-unsuitable for ultra-low-power portable use | Choose when 16-bit precision is mandatory and board space/power budget permit external support circuitry |
| MAX11156ETK+ | 14-bit, 500ksps, internal 2.5V ref, SPI interface, 12-pin TDFN; ±1.5LSB INL, 78dB S/(N+D) at 100kHz | Smaller footprint but lower AC performance; no bipolar input support-requires external level-shifting for ±2.048V signals | Choose for space-constrained designs where unipolar-only operation and 78dB SNR are acceptable trade-offs |
Compared with LTC1417IGN#PBF, ADS8326IPW offers higher resolution but increases BOM cost and layout complexity due to external reference needs, while MAX11156ETK+ reduces size and simplifies power but sacrifices 3dB SNR and eliminates true bipolar input capability-making LTC1417IGN#PBF optimal for balanced performance, power, and analog flexibility in industrial and telecom signal chains.
Availability
LTC1417IGN#PBF is available at Aetrix Electronics and suitable for industrial process monitoring, telecom baseband receivers, audio test equipment, and spectrum instrumentation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LTC1417IGN#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 LTC1417IGN#PBF belongs to ADI's legacy Linear Technology precision data acquisition portfolio, designed specifically for low-power, high-accuracy sampling in harsh industrial and telecom environments where reliability, DC accuracy, and dynamic performance must coexist.
FAQ
What is the operating temperature range for the LTC1417IGN#PBF?
The LTC1417IGN#PBF is rated for –40°C to +85°C (industrial grade), as confirmed by the "I" suffix in its part marking "1417I" and the LTC1417AI/LTC1417I specification row in the Absolute Maximum Ratings table. This range ensures reliable operation in outdoor telecom cabinets, factory-floor PLCs, and automotive diagnostic tools where ambient extremes occur.
Does the LTC1417IGN#PBF require an external clock to operate?
No-the LTC1417IGN#PBF includes a trimmed internal clock enabling 2.25µs maximum conversion time without external timing components. However, EXTCLKIN (Pin 6) accepts an external 0.05–9MHz clock if system-level synchronization or jitter reduction is required, making LTC1417IGN#PBF flexible for both standalone and multi-ADC timing-coordinated applications.
Can the LTC1417IGN#PBF operate in bipolar mode with only a single 5V supply?
No-bipolar operation (±2.048V input range) requires both VDD = +5V and VSS = –5V supplies, as explicitly stated in the Absolute Maximum Ratings and Analog Input Voltage tables. Attempting bipolar mode with only +5V and ground will violate the VSS specification and risk damage or incorrect conversion results. LTC1417IGN#PBF unipolar mode (0V to 4.096V) works with single +5V only.
What is the purpose of the REFCOMP pin on the LTC1417IGN#PBF?
The REFCOMP pin on the LTC1417IGN#PBF outputs a buffered 4.096V reference voltage optimized for unipolar full-scale scaling. It is internally derived from the 2.5V VREF and must be bypassed with a 10µF tantalum capacitor in parallel with 0.1µF ceramic to AGND to maintain stability and low noise-ensuring accurate 0V–4.096V input range mapping without external gain stages.
How does the SHDN and RD pin combination control power states in the LTC1417IGN#PBF?
In the LTC1417IGN#PBF, SHDN low activates power-down, and the RD pin selects the mode: RD low enables Nap mode (750µA quiescent current, 500ns wake-up), while RD high enables Sleep mode (0.1µA, longer wake-up). This dual-control scheme allows firmware to dynamically balance latency and power savings-e.g., Nap mode during brief idle intervals in data loggers, Sleep mode during overnight shutdown.
LTC1417IGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 400k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- ±5V, 5V
- Voltage - Supply, Digital:
- ±5V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1417IGN#PBF FAQ
1.How can I place an order for LTC1417IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1417IGN#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 LTC1417IGN#PBF reliable?
The price and inventory of LTC1417IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1417IGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1417IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1417IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1417IGN#PBF?
LTC1417IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1417IGN#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 LTC1417IGN#PBF?
For technical support, including LTC1417IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1417IGN#PBF requirements.
6.How does Aetrix verify that LTC1417IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1417IGN#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 LTC1417IGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1417IGN#PBF?
All LTC1417IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1417IGN#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 LTC1417IGN#PBF part is unused and in its original packaging.
Return procedure for LTC1417IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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