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Analog Devices Inc. LTC1417CGN#PBF
- Part No.:
- LTC1417CGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1417CGN#PBF.pdf
- Description:
- IC ADC 14BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:497
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Product details
Overview
LTC1417CGN#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) at 200kHz input - enabling precision data acquisition in isolated industrial sensor interfaces.
For engineers reviewing the LTC1417CGN#PBF datasheet, LTC1417CGN#PBF pinout, LTC1417CGN#PBF application, or LTC1417CGN#PBF equivalent, this page provides verified technical context, real-world timing and noise performance, package-specific layout guidance, and validated alternative options for high-fidelity sampling systems requiring stable DC accuracy and broadband dynamic performance.
Technical Context
The LTC1417CGN#PBF implements a fully integrated successive-approximation architecture with on-chip sample-and-hold, precision 2.5V reference, and internal trimmed 9.4MHz conversion clock. Its differential capacitive DAC and zeroing-switch SAR logic enable 2.25µs max conversion time and 150ns min acquisition time.
It supports unipolar (0V–4.096V) and bipolar (±2.048V) input ranges via supply configuration, features separate CONVST/BUSY/ RD control signals for FIFO and microprocessor interfacing, and offers Nap (750µA) and Sleep (0.1µA) power-down modes selectable via SHDN and RD pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 distinct output codes with no missing codes across full temperature range. |
| Sampling Rate | 400ksps - supports real-time digitization of signals up to 200kHz Nyquist bandwidth without aliasing. |
| INL / DNL | ±1.25LSB / ±1LSB max - ensures monotonicity and <0.0076% full-scale linearity error for calibration-critical measurements. |
| S/(N+D) | 81dB at 100kHz - corresponds to ~13.2 effective bits, enabling high-fidelity audio and spectrum analysis. |
| THD | –95dB at Nyquist - suppresses harmonic distortion to <0.0018% of fundamental, critical for telecom signal integrity. |
| Power Dissipation | 20mW typical (unipolar) - enables thermally constrained designs such as portable instrumentation and multi-channel DAQ modules. |
| Supply Range | 4.75V–5.25V (VDD), –5.25V––4.75V (VSS) - supports robust operation under industrial rail tolerances. |
Pinout & Package
Package: 16-lead narrow-body SSOP (0.154" width), SO-8 footprint compatible, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Differential analog input (+) | Accepts 0V–4.096V (unipolar) or ±2.048V (bipolar); 14pF input capacitance in sample mode requires low-Z drive for <500ns acquisition. |
| AIN– | Differential analog input (–) | Common-mode rejection ≥65dB; must be driven symmetrically with AIN+ to preserve AC performance. |
| VREF | 2.500V ±20mV internal reference output | Bypass to AGND with 1µF; tempco ±10ppm/°C (0°C–70°C); used for unipolar full-scale scaling. |
| REFCOMP | 4.096V reference output | Bypass to AGND with 10µF tantalum + 0.1µF ceramic; enables precise 12-bit LSB = 1mV scaling in unipolar mode. |
| CONVST | Active-low conversion start | Falling edge initiates SAR cycle; minimum pulse width 40ns; timing-critical for synchronized multi-ADC systems. |
| BUSY | Conversion status indicator | Low during conversion (≤2.25µs); used to gate RD or trigger interrupt; 35–70ns delay from CONVST. |
| DOUT | Serial data output | MSB-first, SPI-compatible; valid 7–12ns before BUSY↑; requires SCLK ≤20MHz for falling-edge capture. |
| SHDN / RD | Power management control pair | SHDN=LOW + RD=LOW → Nap mode (750µA); SHDN=LOW + RD=HIGH → Sleep mode (0.1µA). |
Key Features
| Feature | Design Value |
|---|---|
| Internal precision reference | 2.500V ±20mV output with ±10ppm/°C tempco (0°C–70°C) eliminates external reference IC and reduces BOM count. |
| Dual shutdown modes | Nap mode (750µA) enables fast wake-up (<500ns); Sleep mode (0.1µA) extends battery life in portable DAQ systems. |
| Differential high-Z analog inputs | 14pF sample-mode capacitance and ±1µA leakage allow direct connection to low-noise op amps like LT1630 without buffering. |
| Guaranteed no missing codes | Validated over 0°C–70°C temperature range - essential for closed-loop control and safety-critical monitoring applications. |
| Flexible clocking | Supports internal 9.4MHz clock or external conversion clock up to 9MHz; CLKOUT provides synchronous timing for daisy-chained ADCs. |
Applications
| Industrial Sensor Interface | Isolated Data Acquisition |
|---|---|
Use Scenario: Digitizing outputs from strain gauges, RTDs, and bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Primary ADC with integrated reference and sample-and-hold; handles ratiometric measurements using REFCOMP voltage. Use Value: ±1.25LSB INL ensures <0.01% measurement uncertainty over 0°C–70°C, eliminating field recalibration. |
Use Scenario: High-voltage motor current sensing using isolated amplifiers feeding into ADC front-end. IC Role / Device Role / Timing Role: Isolated-side ADC with differential inputs rejecting common-mode noise from gate drivers and switching transients. Use Value: 65dB CMRR and –95dB THD maintain signal fidelity despite >1kV common-mode transients on AIN+/AIN–. |
| Audio Signal Processing | Spectrum Instrumentation |
Use Scenario: Digitizing line-level audio (±2.048V) in professional audio analyzers and broadcast equipment. IC Role / Device Role / Timing Role: High-fidelity sampling stage with serial interface to DSP; uses bipolar supply for symmetrical dynamic range. Use Value: 81dB S/(N+D) at 20kHz and –95dB THD meet AES17 audio test standard requirements. |
Use Scenario: Real-time spectral analysis in handheld RF field strength meters and EMI receivers. IC Role / Device Role / Timing Role: Undersampling ADC capturing IF signals >200kHz; relies on 10MHz full-power bandwidth and low jitter aperture. Use Value: 5psRMS aperture jitter and –98dB SFDR enable accurate amplitude and phase measurement of adjacent channel interferers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 14-bit, 400ksps SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8326IPW | 16-bit resolution, 500ksps, SPI interface, external reference only, 3.3V-only supply | Higher resolution but requires external 2.5V reference and level-shifting for 5V systems; no bipolar support | Select when 16-bit precision is mandatory and system already uses 3.3V logic; avoid if ±5V supply or internal reference is required. |
| MAX1166CEUA+ | 14-bit, 250ksps, internal reference, 2.7V–5.25V supply, no bipolar mode, 8-pin µMAX package | Lower speed and unipolar-only; smaller footprint but lacks differential inputs and REFCOMP output | Select for space-constrained unipolar sensor nodes where 250ksps suffices and differential rejection is not needed. |
Compared with LTC1417CGN#PBF, ADS8326IPW trades internal reference and bipolar operation for higher resolution and speed, while MAX1166CEUA+ sacrifices speed, differential capability, and REFCOMP to achieve ultra-compact size - making LTC1417CGN#PBF the optimal choice for balanced precision, flexibility, and ease of integration in industrial and test equipment.
Availability
LTC1417CGN#PBF is available at Aetrix Electronics and suitable for industrial sensor interfaces, isolated data acquisition systems, and audio signal processing applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC1417CGN#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC1417CGN#PBF belongs to Linear's precision data acquisition product line, designed specifically for applications demanding low power, guaranteed monotonicity, and excellent AC/DC performance in harsh industrial environments.
FAQ
What is the operating temperature range for the LTC1417CGN#PBF?
The LTC1417CGN#PBF is rated for 0°C to 70°C ambient operation (Commercial grade). Its DC specifications - including ±1.25LSB INL and no missing codes - are guaranteed across this full range. The part marking "CGN" explicitly denotes the Commercial temperature grade, distinct from the Industrial-grade LTC1417IGN#PBF (–40°C to 85°C).
Does the LTC1417CGN#PBF require an external reference?
No, the LTC1417CGN#PBF includes a precision 2.500V internal reference (VREF pin) with ±20mV initial accuracy and ±10ppm/°C tempco over 0°C–70°C. It also provides a buffered 4.096V reference (REFCOMP) optimized for unipolar 12-bit LSB scaling. External references are optional and used only when higher initial accuracy or custom voltage is needed.
How does the LTC1417CGN#PBF handle power-down modes?
The LTC1417CGN#PBF implements two user-selectable shutdown modes via SHDN and RD pins: Nap mode (SHDN=LOW, RD=LOW) draws 750µA and wakes in <500ns; Sleep mode (SHDN=LOW, RD=HIGH) draws just 0.1µA but requires longer wake-up. Both modes retain register state and reference bias - critical for low-power portable instrumentation using LTC1417CGN#PBF.
Can the LTC1417CGN#PBF operate with a single 5V supply in bipolar mode?
No - bipolar operation requires both VDD = +5V and VSS = –5V supplies. The LTC1417CGN#PBF's analog input range is ±2.048V only when powered from ±5V rails. Attempting bipolar input with single 5V supply violates absolute maximum ratings and will damage the device. Unipolar mode (0V–4.096V) is the sole option for single-supply use.
What is the maximum SCLK frequency supported by the LTC1417CGN#PBF?
The LTC1417CGN#PBF supports SCLK up to 20MHz when capturing data on the falling edge (with 5ns setup time), or up to 10MHz for rising-edge capture. This allows high-speed serial readout at full 400ksps throughput - each 14-bit conversion requires ≤1.4µs serial transfer time at 10MHz, fitting within the 2.5µs total acquisition-plus-conversion window.
LTC1417CGN#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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1417CGN#PBF FAQ
1.How can I place an order for LTC1417CGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1417CGN#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 LTC1417CGN#PBF reliable?
The price and inventory of LTC1417CGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1417CGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1417CGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1417CGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1417CGN#PBF?
LTC1417CGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1417CGN#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 LTC1417CGN#PBF?
For technical support, including LTC1417CGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1417CGN#PBF requirements.
6.How does Aetrix verify that LTC1417CGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1417CGN#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 LTC1417CGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1417CGN#PBF?
All LTC1417CGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1417CGN#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 LTC1417CGN#PBF part is unused and in its original packaging.
Return procedure for LTC1417CGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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