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Analog Devices Inc. LTC2311IMSE-16#TRPBF
- Part No.:
- LTC2311IMSE-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311IMSE-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,941
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Product details
Overview
LTC2311IMSE-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 5 Msps successive approximation register (SAR) analog-to-digital converter with differential inputs, ±3 LSB typical INL, 81 dB SNR at 2.2 MHz input, and integrated 4.096 V temperature-compensated reference. It operates from a single 3.3 V or 5 V supply and delivers one-cycle latency for high-speed data acquisition in industrial instrumentation and optical networking.
For engineers reviewing the LTC2311IMSE-16#TRPBF datasheet, LTC2311IMSE-16#TRPBF pinout, LTC2311IMSE-16#TRPBF application, or LTC2311IMSE-16#TRPBF equivalent, key selection criteria include guaranteed no-missing-codes operation over –40°C to +85°C, CMOS/LVDS configurable serial interface, 8 VP-P differential input range with wide common-mode support, and low-power nap/sleep modes enabling µW-level standby consumption.
Technical Context
The LTC2311IMSE-16#TRPBF implements a fully differential SAR architecture with internal sample-and-hold, supporting bipolar and unipolar pseudo-differential configurations without external configuration. Its 100 MHz –3 dB input bandwidth and 1 ps RMS aperture jitter enable high-fidelity digitization of fast transient signals.
It integrates dual reference paths: a factory-trimmed 4.096 V (±20 ppm/°C max) internal reference with buffered 1.25 V REFIN input, and supports external reference injection via REFOUT. The CMOS/LVDS I/O mode select pin enables flexible host interfacing to FPGAs or DSPs at 1.8 V–2.5 V logic levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536 distinct output codes with no missing codes across temperature. |
| Sampling Rate | 5 Msps - enables real-time capture of signals up to 2.2 MHz with Nyquist margin. |
| INL (typ) | ±3 LSB - ensures linearity error ≤ ±0.046% of full scale, critical for precision measurement accuracy. |
| SNR (typ) | 81.6 dB at fIN = 2.2 MHz - delivers >13.5 effective number of bits (ENOB) for high dynamic range applications. |
| Power Dissipation | 50 mW at 5 V / 5 Msps - balances speed and thermal management in compact PCB layouts. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade reliability without derating. |
| Reference | Internal 4.096 V ±20 ppm/°C - eliminates need for external reference IC in most designs, reducing BOM count. |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed pad (Pin 17), RoHS-compliant, tape-and-reel (#TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11) | Analog/Digital Ground Return | Must be connected directly to solid ground plane; multiple pins reduce ground impedance and improve noise immunity. |
| REFIN (Pin 2) | 1.25 V Reference Buffer I/O | Provides buffered 1.25 V output; grounding disables internal REFOUT buffer to allow external reference injection. |
| REFOUT (Pin 3) | 4.096 V Reference Output | Delivers stable, low-drift reference voltage; requires 10 µF ceramic decoupling close to pin. |
| VDD (Pin 4) | Analog Power Supply | Accepts 3.13–5.25 V; bypassed with 1 µF ceramic capacitor to suppress supply noise coupling into ADC core. |
| AIN+, AIN– (Pins 6, 7) | Differential Analog Inputs | Support ±4.096 V differential swing with 0–VDD common-mode range; tolerate back-to-back ESD clamps. |
| CNV (Pin 9) | Convert Initiation Input | TTL-compatible; falling edge triggers conversion and initiates serial readout with one-cycle latency. |
| CMOS/LVDS (Pin 10) | I/O Interface Mode Select | Ground = CMOS; tie to OVDD = LVDS; float = low-power LVDS - configures physical layer without firmware change. |
| OVDD (Pin 12) | Digital I/O Supply | 1.71–2.63 V supply for SDO/SCK logic; sets voltage thresholds for CMOS/LVDS receivers and drivers. |
| SDO+ (Pin 14) | Serial Data Output (CMOS) | MSB-first output synchronized to SCK falling edge; logic level referenced to OVDD; SDO– unused in CMOS mode. |
| SCK+ (Pin 16) | Serial Clock Input (CMOS) | Single-ended clock input; falling edge clocks data out on SDO+; supports up to 105 MHz SCK frequency. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-reference flexibility | Internal 4.096 V reference + external 1.25 V REFIN input allows seamless transition between self-contained and system-referenced designs. |
| Configurable I/O interface | Hardware-selectable CMOS or LVDS mode eliminates need for level-shifting components or FPGA I/O bank reconfiguration. |
| Ultra-low power sleep modes | 5 µW sleep current (VDD = 5 V) enables rapid wake-up in battery-powered or duty-cycled systems without sacrificing acquisition readiness. |
| Wide common-mode input range | 0 V to VDD common-mode support simplifies front-end design by relaxing requirements on driver amplifier common-mode output range. |
| Guaranteed no-missing-codes | 16-bit monotonicity ensured across –40°C to +85°C eliminates code ambiguities in closed-loop control or safety-critical monitoring. |
Applications
| High-Speed Industrial DAQ | Optical Network Monitoring |
|---|---|
Use Scenario: Real-time sampling of sensor outputs (e.g., strain gauges, RTDs) in programmable logic controller (PLC) modules requiring sub-100 ns timing resolution. IC Role / Device Role / Timing Role: Primary high-speed ADC capturing synchronized multi-channel analog data with deterministic one-cycle latency for FPGA-based processing. Use Value: 5 Msps throughput and 81.6 dB SNR enable 13.5+ ENOB performance in noisy factory environments without oversampling or external filtering. | Use Scenario: Digitizing photodiode current waveforms in coherent optical transceivers for real-time signal integrity analysis and adaptive equalization. IC Role / Device Role / Timing Role: Front-end ADC converting differential RF-modulated optical receiver outputs with minimal added jitter or harmonic distortion. Use Value: 1 ps RMS aperture jitter and –90 dB THD preserve modulation fidelity for QPSK/16-QAM signal recovery at 2.2 MHz baseband. |
| Automotive Radar Signal Conditioning | Multiphase Motor Control Feedback |
Use Scenario: Sampling IF outputs from 77 GHz radar receivers in ADAS ECUs, where phase coherence and spurious-free dynamic range are critical. IC Role / Device Role / Timing Role: High-linearity ADC capturing chirp-based FMCW radar returns with precise timing alignment to CNV-triggered acquisition windows. Use Value: 96 dB SFDR and 85 dB CMRR reject switching noise from nearby DC-DC converters and digital subsystems. | Use Scenario: Closed-loop current sensing in three-phase inverter drives, where simultaneous sampling of all phases minimizes torque ripple. IC Role / Device Role / Timing Role: Precision ADC acquiring isolated shunt voltage measurements with differential input rejection of common-mode bus noise. Use Value: 8 VP-P differential input range and wide 0–VDD common-mode support accommodate ±200 mV shunt signals referenced to 400 V DC bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, SPI-only (no LVDS), 1.8 V I/O only, no internal reference | Requires external reference and level-shifting for 3.3 V/5 V systems; higher resolution but less interface flexibility | Select when 18-bit resolution outweighs need for integrated reference and LVDS compatibility. |
| ADS8860IDRCT | 16-bit, 1 Msps, SPI-only, 1.8 V I/O, internal 2.5 V reference, no nap/sleep modes | Lower power (1.5 mW) but insufficient speed for >2 Msps real-time control loops | Select for portable, low-throughput applications where ultra-low static power dominates timing requirements. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2311IMSE-16#TRPBF uniquely combines 5 Msps speed, integrated 4.096 V reference, hardware-configurable LVDS/CMOS I/O, and µW-level sleep current-making it optimal for space-constrained industrial and automotive systems demanding both performance and design simplicity.
Availability
LTC2311IMSE-16#TRPBF is available at Aetrix Electronics and suitable for high-speed industrial DAQ, optical network monitoring, automotive radar signal conditioning, and multiphase motor control requiring stable component supply across extended temperature ranges.
Supply support for LTC2311IMSE-16#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 LTC2311-16 product line was designed specifically for high-speed, high-accuracy data acquisition in thermally demanding environments-emphasizing low-noise SAR architecture, integrated references, and robust industrial temperature grading.
FAQ
What is the operating temperature range of the LTC2311IMSE-16#TRPBF?
The LTC2311IMSE-16#TRPBF is rated for operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This temperature grade is confirmed by the "I" suffix in the part number and validated across all electrical specifications including INL, SNR, and reference drift. The device maintains ±8 LSB INL guarantee and 81 dB SNR typical across this full range, ensuring consistent performance in harsh environments without derating.
Does the LTC2311IMSE-16#TRPBF require an external reference?
No, the LTC2311IMSE-16#TRPBF includes an onboard low-drift 4.096 V temperature-compensated reference with ±20 ppm/°C max drift, eliminating the need for an external reference in most applications. It also provides a 1.25 V buffered REFIN pin that can be grounded to disable the internal REFOUT buffer, allowing direct injection of an external reference voltage between 1.25 V and VDD if system-level calibration or tighter tolerance is required.
How does the CMOS/LVDS pin (Pin 10) configure the serial interface?
The CMOS/LVDS pin (Pin 10) selects the physical layer interface mode: grounding enables CMOS mode (single-ended SDO+/SCK+), tying to OVDD enables standard LVDS mode (differential SDO+/SDO–, SCK+/SCK–), and leaving it floating enables low-power LVDS mode. This hardware-selectable configuration avoids firmware dependencies and supports interoperability with diverse host processors-FPGAs with LVDS banks or microcontrollers with CMOS SPI peripherals-without layout changes.
What power savings does the LTC2311IMSE-16#TRPBF offer in inactive periods?
The LTC2311IMSE-16#TRPBF offers two low-power states: Nap mode draws 2.8–3.5 mA (VDD = 5 V) after conversion completion, while Sleep mode reduces total supply current to just 0.5–60 µW depending on supply voltage. These modes retain register state and allow sub-microsecond wake-up, making the LTC2311IMSE-16#TRPBF suitable for burst-mode acquisition in energy-constrained systems such as remote sensors or portable test equipment.
Can the LTC2311IMSE-16#TRPBF digitize single-ended signals?
Yes, the LTC2311IMSE-16#TRPBF supports pseudo-differential unipolar and bipolar configurations without external circuitry or configuration registers. For single-ended signals, connect the reference (e.g., ground or mid-rail) to AIN– and the signal to AIN+, leveraging the ADC's 0–VDD common-mode range and 85 dB CMRR to reject shared noise. This capability simplifies front-end design and reduces component count compared to dedicated single-ended ADCs requiring external amplifiers.
LTC2311IMSE-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 5M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial, 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:
- 3.13V ~ 3.47V, 5V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2311IMSE-16#TRPBF FAQ
1.How can I place an order for LTC2311IMSE-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311IMSE-16#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 LTC2311IMSE-16#TRPBF reliable?
The price and inventory of LTC2311IMSE-16#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2311IMSE-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311IMSE-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311IMSE-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311IMSE-16#TRPBF?
LTC2311IMSE-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311IMSE-16#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 LTC2311IMSE-16#TRPBF?
For technical support, including LTC2311IMSE-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311IMSE-16#TRPBF requirements.
6.How does Aetrix verify that LTC2311IMSE-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311IMSE-16#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 LTC2311IMSE-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311IMSE-16#TRPBF?
All LTC2311IMSE-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311IMSE-16#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 LTC2311IMSE-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2311IMSE-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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