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Analog Devices Inc. LTC1417AIGN#PBF
- Part No.:
- LTC1417AIGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1417AIGN#PBF.pdf
- Description:
- IC ADC 14BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:325
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Product details
Overview
LTC1417AIGN#PBF from Analog Devices (formerly Linear Technology) is a low-power, 14-bit, 400ksps successive-approximation analog-to-digital converter 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 sensor interfaces.
For engineers reviewing the LTC1417AIGN#PBF datasheet, LTC1417AIGN#PBF pinout, LTC1417AIGN#PBF application, or LTC1417AIGN#PBF equivalent, key selection criteria include unipolar/bipolar input range flexibility (0–4.096V or ±2.048V), 2.25µs max conversion time, 20mW typical power dissipation at 400ksps, and compatibility with microprocessor/DSP serial interfaces via BUSY/CONVST/RD control signals.
Technical Context
The LTC1417AIGN#PBF implements a capacitor-based successive-approximation register (SAR) architecture with integrated sample-and-hold, precision internal reference, and trimmed internal clock. Its differential input stage supports true bipolar operation with 65dB common-mode rejection and 10MHz full-power bandwidth, while the serial interface uses edge-triggered SCLK with programmable RD/SHDN-controlled power states.
DC accuracy is maintained across –40°C to +85°C via on-chip trimming for offset, full-scale, and linearity; AC performance relies on low-aperture jitter (5psRMS), fast acquisition (150–500ns), and low transition noise (0.33LSBRMS), enabling undersampling of signals beyond Nyquist without degradation in effective bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Delivers 16,384 discrete output codes for high-fidelity signal digitization. |
| Sampling Rate | 400ksps - Supports real-time capture of signals up to 200kHz Nyquist bandwidth. |
| INL / DNL | ±1.25LSB / ±1LSB max - Ensures monotonicity and minimal code-width variation across full temperature range. |
| S/(N+D) | 81dB at 100kHz - Corresponds to ~13.2 effective bits; enables high-SNR measurement in audio and instrumentation. |
| Power Dissipation | 20mW typ (unipolar) - Enables battery-powered or thermally constrained embedded systems. |
| Input Range | 0V to 4.096V (unipolar) or ±2.048V (bipolar) - Matches standard reference voltages and simplifies front-end design. |
| Conversion Time | 2.25µs max - Allows tight timing margins in synchronous data acquisition systems. |
Pinout & Package
Package: 16-lead narrow-body SSOP (0.150" width), SO-8 footprint compatible, RoHS-compliant.
| 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, low-drift (±10ppm/°C) reference for external circuitry; requires 1µF bypass to AGND. |
| REFCOMP | 4.096V reference output | Provides precise scaling for unipolar 0–4.096V input range; bypassed with 10µF tantalum + 0.1µF ceramic. |
| AGND | Analog ground reference | Separate ground return for analog section; must be tied to DGND at single point to minimize noise coupling. |
| CONVST | Active-low conversion start | Falling edge initiates SAR cycle; minimum pulse width 40ns; critical for deterministic timing alignment. |
| BUSY | Conversion status indicator | Active-low open-drain output signals ongoing conversion; used to synchronize FIFO/DSP read operations. |
| DOUT | Serial data output | MSB-first, SCLK-synchronized output; high-impedance when RD = low; supports up to 20MHz clock rate. |
| SHDN / RD | Power management control | SHDN low + RD low = Nap mode (750µA); SHDN low + RD high = Sleep mode (0.1µA). |
Key Features
| Feature | Design Value |
|---|---|
| Dual shutdown modes | Nap mode (750µA) enables sub-microsecond wake-up; Sleep mode (0.1µA) supports ultra-low-power standby in portable instruments. |
| Internal 2.5V reference | ±10ppm/°C tempco (0–70°C), ±20ppm/°C (–40–85°C); eliminates need for external reference in cost-sensitive designs. |
| Differential high-Z inputs | 14pF input capacitance in sample mode; 3pF in hold mode; enables direct connection to low-output-impedance op amps without buffering. |
| No missing codes | Guaranteed over full operating temperature range (–40°C to +85°C); ensures reliable digital representation of all analog input levels. |
| Flexible supply operation | Single 5V or dual ±5V support allows reuse across unipolar sensor interfaces and bipolar signal conditioning stages. |
Applications
| Industrial Process Monitoring | Isolated Sensor Data Acquisition |
|---|---|
Use Scenario: Digitizing 4–20mA current loop outputs from pressure/temperature transmitters in PLC analog input modules. IC Role / Device Role / Timing Role: Precision ADC core with bipolar input support and low drift, synchronized to system clock via CONVST/BUSY handshake. Use Value: ±1.25LSB INL ensures <0.02% full-scale error across temperature, meeting SIL-2 functional safety requirements for process control. | Use Scenario: High-voltage isolation barrier interface where analog signals cross galvanic isolation using transformers or optocouplers. IC Role / Device Role / Timing Role: Low-power, isolated-side ADC converting conditioned sensor outputs with minimal supply current draw. Use Value: 20mW typical power and Sleep mode (0.1µA) extend battery life in wireless isolated nodes; differential inputs reject common-mode noise induced across isolators. |
| Audio Signal Analysis Equipment | Test & Measurement Spectrum Analyzers |
Use Scenario: Capturing baseband audio waveforms (20Hz–20kHz) in portable spectrum analyzers and acoustic monitoring devices. IC Role / Device Role / Timing Role: High-SNR ADC front-end with 81dB S/(N+D) at 100kHz, supporting oversampled FFT analysis. Use Value: 13.2 effective bits enable >80dB dynamic range for detecting low-level harmonics and intermodulation products in audio diagnostics. | Use Scenario: Digitizing RF downconverted IF signals (e.g., 1–100MHz) in benchtop spectrum analyzers requiring wide instantaneous bandwidth. IC Role / Device Role / Timing Role: Undersampling-capable ADC with 10MHz full-power bandwidth and low aperture jitter (5psRMS). Use Value: Maintains 12.5 effective bits (77dB S/(N+D)) up to 0.8MHz input frequency, enabling accurate spectral reconstruction without anti-alias filtering. |
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 only, no internal reference, 3.3V-only supply | Higher resolution but requires external reference and level-shifting for ±5V systems | Select when 16-bit precision outweighs internal reference convenience and dual-supply flexibility. |
| MAX1166BCAP+ | 14-bit, 250ksps, internal 2.5V reference, SPI-compatible, 2.7–5.25V supply, no bipolar input support | Unipolar-only input range limits use in differential sensor interfaces requiring ±2.048V swing | Select for lower-cost unipolar-only applications where 250ksps sampling suffices and supply voltage headroom is constrained. |
Compared with ADS8326IPW and MAX1166BCAP+, the LTC1417AIGN#PBF uniquely combines internal ±2.048V bipolar input support, dual-supply operation, and guaranteed no-missing-codes performance across –40°C to +85°C-making it optimal for ruggedized industrial data loggers and isolated analog front-ends where supply flexibility and DC accuracy are non-negotiable.
Availability
LTC1417AIGN#PBF is available at Aetrix Electronics and suitable for industrial process monitoring, isolated sensor data acquisition, audio signal analysis equipment, and test & measurement spectrum analyzers requiring stable component supply and long-term lifecycle assurance.
Supply support for LTC1417AIGN#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 LTC1417AIGN#PBF belongs to ADI's legacy Linear Technology precision data acquisition product line, designed specifically for high-accuracy, low-power, multi-supply SAR ADC applications in harsh industrial and instrumentation environments.
FAQ
What is the operating temperature range for the LTC1417AIGN#PBF?
The LTC1417AIGN#PBF is rated for –40°C to +85°C (industrial grade). This extended range is validated across all DC specifications-including ±1.25LSB INL, ±1LSB DNL, and no missing codes-as confirmed in the device's "LTC1417AI/LTC1417I" ordering suffix specification table. The part marking "1417AI" on the package corresponds to this temperature grade.
Does the LTC1417AIGN#PBF require an external clock source?
No-the LTC1417AIGN#PBF includes a trimmed internal conversion clock that delivers ≤2.25µs conversion time. An external clock (EXTCLKIN) is optional and supports frequencies from 50kHz to 9MHz; however, the internal clock is enabled by default when EXTCLKIN is held at 5V, eliminating external timing components for most applications.
How does the LTC1417AIGN#PBF handle unipolar versus bipolar input configurations?
The LTC1417AIGN#PBF automatically adapts: with VDD = 5V and VSS = 0V, it accepts 0V to 4.096V unipolar inputs; with VDD = 5V and VSS = –5V, it accepts ±2.048V bipolar inputs. Input range selection is supply-driven-not software-configured-and both modes maintain full 14-bit linearity and guaranteed no missing codes.
What are the power consumption differences between Nap and Sleep modes on the LTC1417AIGN#PBF?
In Nap mode (SHDN = low, RD = low), the LTC1417AIGN#PBF draws 750µA and wakes in ≤500ns-ideal for burst-mode acquisition. In Sleep mode (SHDN = low, RD = high), it draws just 0.1µA but requires longer wake-up latency; both modes retain register state and reference stability, ensuring rapid resumption of accurate conversions.
Can the LTC1417AIGN#PBF interface directly with a 3.3V microcontroller SPI port?
Yes-with level-shifting. While the LTC1417AIGN#PBF's digital I/O is specified for 5V logic (VIH = 2.4V min, VOL = 0.1V max at 160µA), its DOUT and BUSY outputs are CMOS-compatible and can drive 3.3V inputs if pulled up to 3.3V (not 5V). For robustness, use a single 3.3V-tolerant buffer on SCLK/CONVST/RD lines when interfacing with 3.3V MCUs.
LTC1417AIGN#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:
- -
LTC1417AIGN#PBF FAQ
1.How can I place an order for LTC1417AIGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1417AIGN#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 LTC1417AIGN#PBF reliable?
The price and inventory of LTC1417AIGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1417AIGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1417AIGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1417AIGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1417AIGN#PBF?
LTC1417AIGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1417AIGN#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 LTC1417AIGN#PBF?
For technical support, including LTC1417AIGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1417AIGN#PBF requirements.
6.How does Aetrix verify that LTC1417AIGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1417AIGN#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 LTC1417AIGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1417AIGN#PBF?
All LTC1417AIGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1417AIGN#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 LTC1417AIGN#PBF part is unused and in its original packaging.
Return procedure for LTC1417AIGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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