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Analog Devices Inc. LTC1416IG#TRPBF
- Part No.:
- LTC1416IG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1416IG#TRPBF.pdf
- Description:
- IC ADC 14BIT SAR 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,576
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Product details
Overview
LTC1416IG#TRPBF from Analog Devices (formerly Linear Technology) is a 14-bit, 400ksps successive-approximation ADC with ±2.5V true differential input range, 80.5dB S/(N + D) at 100kHz, 70mW power dissipation, and integrated 2.5V reference. It operates from ±5V supplies in industrial temperature range (–40°C to +85°C) and targets high-fidelity data acquisition in spectrum analysis and imaging systems.
For engineers reviewing the LTC1416IG#TRPBF datasheet, LTC1416IG#TRPBF pinout, LTC1416IG#TRPBF application, or LTC1416IG#TRPBF equivalent, key selection criteria include guaranteed ±2LSB INL/±1.5LSB DNL, 15MHz full-power bandwidth, nap/sleep shutdown modes, differential common-mode rejection up to 60dB, and µP-compatible parallel 14-bit output with no pipeline delay.
Technical Context
The LTC1416IG#TRPBF implements a capacitor-based successive approximation register (SAR) architecture with an internal sample-and-hold circuit featuring 100ns–400ns acquisition time and <2psRMS aperture jitter. Its differential input stage supports both single-ended (AIN– grounded) and fully differential signal acquisition while rejecting common-mode noise up to 200kHz.
Conversion timing is controlled by asynchronous digital inputs (CONVST, CS, RD), with BUSY indicating conversion status and data valid on BUSY rising edge. The device integrates a curvature-corrected bandgap reference (2.500V ±20mV) buffered via VREF and REFCOMP pins, enabling operation with either internal or external reference sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes; delivers 16,384 discrete output levels for high dynamic range measurement. |
| Sampling Rate | 400ksps maximum; enables real-time capture of signals up to 200kHz Nyquist frequency. |
| S/(N + D) | 80.5dB at 100kHz input; ensures >13 effective bits for precision spectral analysis applications. |
| INL / DNL | ±2LSB max INL, ±1.5LSB max DNL over –40°C to +85°C; guarantees monotonicity and accurate DC linearity. |
| Power Dissipation | 70mW typical at 400ksps; reduces thermal load in dense PCB layouts and enables low-power system design. |
| Input Bandwidth | 15MHz full-power bandwidth; supports undersampling of RF and IF signals beyond Nyquist. |
| Common-Mode Rejection | 60dB minimum; suppresses ground-loop noise and enables robust measurement in noisy industrial environments. |
Pinout & Package
Package: 28-pin SSOP (Small Outline Plastic Package), 0.209" body width, JEDEC MO-153 compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ (1), AIN– (2) | Differential analog input pair | Accepts ±2.5V bipolar signals; enables common-mode noise rejection without external instrumentation amplifiers. |
| VREF (3), REFCOMP (4) | Internal reference output and compensation | VREF provides 2.500V ±20mV reference; REFCOMP requires ≥22µF bypass for stability and low-noise operation. |
| AGND (5), DGND (14) | Analog and digital ground returns | Must be tied together at single point near device; separates analog return path from digital switching noise. |
| D13–D0 (6–13, 15–20) | 14-bit parallel three-state data outputs | Outputs two's complement code; high-impedance when CS high or RD inactive; no pipeline latency. |
| CONVST (23), BUSY (25) | Asynchronous conversion trigger and status | Falling-edge CONVST initiates conversion; BUSY low during conversion, rising edge indicates data validity. |
| CS (24), RD (22), SHDN (21) | Chip select, read enable, and shutdown control | CS selects active mode; RD enables output drivers; SHDN with CS configures nap (1.6mA) or sleep (1µA) modes. |
| AVDD (28), DVDD (27), VSS (26) | Separate analog/digital positive and negative supplies | AVDD/DVDD = +5V ±5%, VSS = –5V ±5%; independent bypassing required per supply pin to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| True differential input architecture | Enables direct connection to transducer bridges or differential sensors without level-shifting or gain stages. |
| Integrated 2.5V precision reference | Eliminates need for external reference IC; factory-trimmed to ±0.8% initial accuracy and ±15ppm/°C tempco. |
| Nap and Sleep shutdown modes | Reduces current draw to 1.6mA (nap) or 1µA (sleep); allows rapid wake-up (<400ns) for burst-mode acquisition. |
| 15MHz full-power analog input bandwidth | Supports undersampling of IF signals up to 15MHz; maintains >77dB S/(N + D) up to 0.8MHz linear bandwidth. |
| Guaranteed monotonicity and no missing codes | Ensures deterministic behavior in closed-loop control systems where code transitions must be strictly ordered. |
Applications
| Spectrum Analysis Systems | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Real-time FFT-based spectral monitoring of RF interference in telecom base stations. IC Role / Device Role / Timing Role: Primary sampling front-end ADC capturing 400k samples/sec with 80.5dB SNDR to resolve adjacent-channel leakage. Use Value: 15MHz input bandwidth enables direct digitization of 10–20MHz IF signals without downconversion hardware. |
Use Scenario: Multi-channel vibration monitoring in predictive maintenance systems using piezoelectric sensors. IC Role / Device Role / Timing Role: High-linearity ADC acquiring synchronized differential sensor outputs with ±2.5V range matching amplifier output swing. Use Value: 60dB CMRR rejects common-mode noise from motor drives and switching power supplies in industrial enclosures. |
| Digital Signal Processing Front-End | Imaging System Digitization |
|
Use Scenario: Medical ultrasound beamformer requiring low-distortion digitization of echo return signals. IC Role / Device Role / Timing Role: Precision SAR ADC interfacing directly to LNA/PGA chain with minimal external components. Use Value: 93dB THD at 100kHz ensures harmonic distortion does not mask weak tissue reflection signals. |
Use Scenario: Industrial X-ray detector array digitizing low-light analog outputs from scintillation sensors. IC Role / Device Role / Timing Role: Low-noise ADC operating in nap mode between image frames to minimize thermal drift. Use Value: 70mW power dissipation prevents localized heating that would degrade dark-current stability in cooled detectors. |
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 |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, SPI interface, single-ended input only; consumes 11mW at 1MSPS. | Lacks differential input and internal reference; requires external REF and driver for bipolar signals. | Choose when higher resolution and speed are critical, and system already uses SPI infrastructure. |
| AD7980BRMZ | 16-bit, 1MSPS, pseudo-differential input, no internal reference; 12.5mW typical power. | Requires external 4.096V reference and op-amp driver for ±2.5V range; lower CMRR than LTC1416IG#TRPBF. | Prefer for battery-powered portable instruments where ultra-low power dominates over analog flexibility. |
Compared with ADS8860IDRCT and AD7980BRMZ, the LTC1416IG#TRPBF offers unique integration of differential input, internal 2.5V reference, and ±5V dual-supply operation - reducing BOM count and layout complexity in industrial and test equipment where signal integrity and ease of use are prioritized over raw resolution or SPI compatibility.
Availability
LTC1416IG#TRPBF is available at Aetrix Electronics and suitable for spectrum analysis systems, high-speed data acquisition modules, and imaging system digitization requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC1416IG#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 LTC1416IG#TRPBF belongs to ADI's legacy Linear Technology precision data converter product line, designed specifically for high-dynamic-range, low-power, easy-to-use sampling ADC applications in demanding instrumentation and test equipment.
FAQ
What is the operating temperature range for the LTC1416IG#TRPBF?
The LTC1416IG#TRPBF is rated for industrial temperature operation from –40°C to +85°C. All key specifications-including ±2LSB INL, ±1.5LSB DNL, 80.5dB S/(N + D), and 70mW power dissipation-are guaranteed across this full range. The "I" grade suffix explicitly denotes industrial qualification, distinguishing it from the commercial-grade LTC1416CG.
Does the LTC1416IG#TRPBF require an external reference voltage?
No, the LTC1416IG#TRPBF includes a factory-trimmed, temperature-compensated 2.500V internal reference accessible at the VREF pin. It can operate fully autonomously using this reference. However, the device also supports external reference drive via the VREF pin-enabling adjustable input spans-for applications requiring dynamic range optimization or tighter initial accuracy.
How does the LTC1416IG#TRPBF handle differential versus single-ended input configurations?
The LTC1416IG#TRPBF natively supports both configurations. In differential mode (AIN+ and AIN– driven), it achieves 60dB common-mode rejection and optimal dynamic performance. In single-ended mode (AIN– grounded), it retains full 14-bit resolution and linearity but sacrifices common-mode noise immunity. The transfer function always computes AIN+ – AIN–, making configuration transparent to the digital interface.
What are the power consumption differences between Nap and Sleep modes on the LTC1416IG#TRPBF?
In Nap mode (SHDN = low, CS = low), the LTC1416IG#TRPBF draws 1.6mA total supply current (≈8mW). In Sleep mode (SHDN = low, CS = high), it draws just 1µA (≈5µW). Nap mode allows sub-microsecond wake-up (<400ns) for burst acquisition; Sleep mode maximizes energy savings but requires longer re-initialization before first conversion.
Can the LTC1416IG#TRPBF interface directly with a microprocessor without glue logic?
Yes-the LTC1416IG#TRPBF features a µP-compatible parallel 14-bit interface with dedicated CS, RD, and BUSY signals. Its timing satisfies standard 80C51/80C86 bus requirements: t10 (data access after RD↓) is 25ns typical at CL = 25pF, and BUSY rising edge directly validates latched data. No FIFO or state-machine logic is needed for basic polling or interrupt-driven reads.
LTC1416IG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 400k
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- 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
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1416IG#TRPBF FAQ
1.How can I place an order for LTC1416IG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1416IG#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 LTC1416IG#TRPBF reliable?
The price and inventory of LTC1416IG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1416IG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1416IG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1416IG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1416IG#TRPBF?
LTC1416IG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1416IG#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 LTC1416IG#TRPBF?
For technical support, including LTC1416IG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1416IG#TRPBF requirements.
6.How does Aetrix verify that LTC1416IG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1416IG#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 LTC1416IG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1416IG#TRPBF?
All LTC1416IG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1416IG#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 LTC1416IG#TRPBF part is unused and in its original packaging.
Return procedure for LTC1416IG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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