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Analog Devices Inc. LTC1417IGN#TRPBF
- Part No.:
- LTC1417IGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1417IGN#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,050
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Product details
Overview
LTC1417IGN#TRPBF 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-ideal for precision data acquisition in isolated or DSP-coupled systems.
For engineers reviewing the LTC1417IGN#TRPBF datasheet, LTC1417IGN#TRPBF pinout, LTC1417IGN#TRPBF application, or LTC1417IGN#TRPBF equivalent, key selection criteria include unipolar/bipolar input range flexibility (0–4.096V / ±2.048V), 2.25µs max conversion time, 20mW typical power dissipation at 400ksps, and compatibility with FIFO, microprocessor, and DSP serial interfaces via BUSY/CONVST/RD control signals.
Technical Context
The LTC1417IGN#TRPBF implements a capacitor-based successive approximation register (SAR) architecture with integrated sample-and-hold, precision internal reference, and trimmed internal clock. Its differential input structure supports both true differential and single-ended configurations, with 65dB common-mode rejection and <0.33LSB RMS transition noise.
Timing is controlled via asynchronous CONVST (active-low start), BUSY (open-drain status), RD (output enable/shutdown mode select), and SHDN (power-down activation). Serial interface uses SCLK-synchronized DOUT output with programmable capture edge, supporting up to 20MHz shift clock frequency and compatible with standard SPI-like protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 distinct output codes for high dynamic range measurement |
| Max Sampling Rate | 400ksps - enables real-time acquisition of signals up to 200kHz Nyquist bandwidth |
| INL / DNL | ±1.25LSB / ±1LSB max - ensures monotonicity and accurate DC transfer without missing codes over full temperature range |
| S/(N+D) | 81dB at 100kHz - corresponds to ~13.2 effective bits, suitable for 12-bit system accuracy with margin |
| THD | –95dB at 200kHz - minimizes harmonic contamination in spectral analysis and telecom signal processing |
| Power Dissipation | 20mW typ (unipolar) - enables battery-powered or thermally constrained designs without active cooling |
| Supply Range | Single 4.75–5.25V or bipolar ±4.75–5.25V - simplifies power architecture in mixed-signal systems |
Pinout & Package
Package: 16-lead narrow-body SSOP (0.154" width), pin-compatible with SO-8 footprint but with 16 pins; RoHS-compliant, Pb-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Differential analog input (+) | Accepts 0–4.096V (unipolar) or ±2.048V (bipolar); high-impedance, 14pF capacitance in sample mode |
| AIN– | Differential analog input (–) | Common-mode referenced input; enables rejection of shared noise on both AIN+ and AIN– |
| VREF | 2.50V internal reference output | Stable 2.5V ±10ppm/°C output; requires 1µF bypass to AGND for low-noise operation |
| REFCOMP | 4.096V reference output | Provides precise 4.096V for external circuitry; bypass with 10µF tantalum + 0.1µF ceramic |
| AGND | Analog ground reference | Separate ground return for analog section; must be tied to DGND at single point |
| CONVST | Active-low conversion start | Falling edge initiates SAR cycle; minimum pulse width 40ns; critical timing path for throughput |
| BUSY | Open-drain conversion status | Low during conversion; used to synchronize RD or external logic; 35–70ns delay from CONVST |
| RD | Read enable / shutdown mode select | Enables DOUT drivers; sets Nap (RD=0V) or Sleep (RD=5V) mode when SHDN is low |
| SHDN | Power shutdown control | Low activates shutdown; Nap mode wakes in 500ns, Sleep draws only 1.5nA VSS current |
| DOUT | Serial data output | MSB-first, SCLK-synchronized; valid 15–40ns after SCLK falling edge; high-Z when RD is high |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2.5V reference | 2.500V ±20mV over temp; eliminates need for external reference in most applications |
| Dual shutdown modes | Nap mode (750µA) enables fast wake-up; Sleep mode (0.1µA IDD, 1.5nA ISS) extends battery life |
| Differential high-Z inputs | 14pF sample-mode capacitance and ±1µA leakage support direct op-amp drive without buffering |
| No missing codes | Guaranteed over full temperature range (–40°C to 85°C), ensuring reliable code continuity in safety-critical logging |
| Flexible input range | Hardware-selectable unipolar (0–4.096V) or bipolar (±2.048V) operation via supply configuration |
Applications
| High-Speed Data Acquisition | Digital Signal Processing Interface |
|---|---|
Use Scenario: Real-time waveform capture in portable test equipment sampling sensor outputs at 400ksps. IC Role / Device Role / Timing Role: Primary ADC converting conditioned analog signals to 14-bit serial data synchronized to external controller via BUSY/CONVST. Use Value: 20mW power and 2.25µs conversion time enable compact, fanless design while maintaining 13.2 ENOB at 100kHz input. | Use Scenario: Front-end digitization for FPGA-based FFT engine analyzing audio or vibration spectra. IC Role / Device Role / Timing Role: High-fidelity analog-to-digital converter feeding serial data stream into FPGA shift register via SCLK/DOUT. Use Value: 81dB S/(N+D) and –95dB THD preserve signal integrity through digital processing chain without SNR degradation. |
| Isolated Data Acquisition Systems | Audio and Telecom Processing |
Use Scenario: Industrial current/voltage monitoring across galvanic isolation barrier using transformer or capacitive isolators. IC Role / Device Role / Timing Role: Isolated-side ADC providing precise digitized measurements with minimal latency and deterministic timing via CONVST/BUSY handshake. Use Value: Bipolar ±2.048V input range matches isolated amplifier outputs; low 1.25LSB INL ensures calibration stability across temperature. | Use Scenario: Digitizing line-level audio or baseband telecom signals in voice-over-IP gateways or DSL modems. IC Role / Device Role / Timing Role: Precision ADC capturing wide-dynamic-range analog signals before digital filtering and encoding. Use Value: 10MHz full-power bandwidth and –98dB SFDR suppress aliasing and spurious artifacts in band-limited communication channels. |
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 |
|---|---|---|---|
| AD7940BRMZ | 14-bit, 1MSPS, SPI interface only; no internal reference; requires external 2.5V ref; higher power (30mW) | Higher speed but lacks bipolar input support and dual shutdown modes; better for SPI-native microcontrollers | Select when >400ksps throughput is required and external reference is acceptable |
| MAX1166ECM+ | 14-bit, 250ksps, internal 2.048V ref; single-supply only (2.7–3.6V); smaller 10-pin µMAX package | Lower power (12mW) and voltage, but limited to unipolar 0–2.048V input; not suitable for ±5V systems | Select for ultra-low-voltage, space-constrained battery applications where 250ksps suffices |
Compared with AD7940BRMZ and MAX1166ECM+, the LTC1417IGN#TRPBF uniquely combines 400ksps speed, ±5V bipolar capability, internal 2.5V reference, and two-tier shutdown-making it optimal for industrial data loggers and isolated measurement systems requiring flexible supply and guaranteed monotonicity.
Availability
LTC1417IGN#TRPBF is available at Aetrix Electronics and suitable for high-precision data acquisition, isolated sensor interfaces, and DSP front-end digitization requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC1417IGN#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 LTC1417IGN#TRPBF belongs to Linear Technology's precision SAR ADC product line, designed specifically for applications demanding low power, excellent AC/DC performance, and robust operation in harsh environments-including factory automation, medical instrumentation, and test equipment.
FAQ
What is the maximum sampling rate supported by the LTC1417IGN#TRPBF?
The LTC1417IGN#TRPBF supports a maximum sampling rate of 400ksps, with a guaranteed conversion time of 2.25µs. This rate is maintained across the full operating temperature range (–40°C to 85°C) and under both unipolar and bipolar supply conditions. The internal clock is factory-trimmed to ensure consistent timing, and external clocking via EXTCLKIN is also supported up to 9MHz for custom synchronization.
Does the LTC1417IGN#TRPBF require an external reference voltage?
No, the LTC1417IGN#TRPBF includes a precision internal 2.500V reference (VREF pin) with ±20mV tolerance and ±10ppm/°C tempco over 0°C–70°C. It also provides a buffered 4.096V reference (REFCOMP) for external circuitry. External references are optional and only needed if higher accuracy or different voltage levels are required-e.g., when using a 3.0V or 4.096V external reference for improved full-scale matching.
How does the LTC1417IGN#TRPBF handle power management in low-power systems?
The LTC1417IGN#TRPBF offers two user-selectable shutdown modes: Nap mode (750µA supply current, 500ns wake-up) and Sleep mode (0.1µA positive supply current, 1.5nA negative supply current). Mode selection is controlled jointly by SHDN (low-active) and RD (logic level). This dual-tier approach allows rapid resumption for burst acquisition or ultra-deep sleep for extended battery life-critical for portable and remote sensing applications.
Can the LTC1417IGN#TRPBF operate with a single 3.3V supply?
No, the LTC1417IGN#TRPBF is not rated for 3.3V operation. Its absolute maximum positive supply (VDD) is 6V, but the specified operating range is 4.75–5.25V for unipolar mode and ±4.75–5.25V for bipolar mode. Operation below 4.75V may cause degraded INL/DNL, increased noise, or failure to meet timing specifications. For 3.3V systems, consider alternatives like the MAX1166ECM+ or AD7940 with appropriate level-shifting.
What are the analog input protection limits for the LTC1417IGN#TRPBF?
The LTC1417IGN#TRPBF analog inputs (AIN+ and AIN–) tolerate voltages from (VSS – 0.3V) to (VDD + 0.3V) under bipolar operation, and from –0.3V to (VDD + 0.3V) under unipolar operation. Internal clamping diodes prevent latch-up for transient currents exceeding 100mA. However, sustained overvoltage beyond these limits risks permanent damage. For ruggedized front-ends, external series resistors and TVS diodes are recommended per Linear Technology Application Note 68.
LTC1417IGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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#TRPBF FAQ
1.How can I place an order for LTC1417IGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1417IGN#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 LTC1417IGN#TRPBF reliable?
The price and inventory of LTC1417IGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1417IGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1417IGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1417IGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1417IGN#TRPBF?
LTC1417IGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1417IGN#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 LTC1417IGN#TRPBF?
For technical support, including LTC1417IGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1417IGN#TRPBF requirements.
6.How does Aetrix verify that LTC1417IGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1417IGN#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 LTC1417IGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1417IGN#TRPBF?
All LTC1417IGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1417IGN#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 LTC1417IGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC1417IGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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