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Analog Devices Inc. LTC2311HMSE-16#PBF
- Part No.:
- LTC2311HMSE-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:521
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Product details
Overview
LTC2311HMSE-16#PBF 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 guaranteed no missing codes over –40°C to 125°C. It operates from a single 3.3 V or 5 V supply and delivers high dynamic range for precision data acquisition in harsh environments.
For engineers reviewing the LTC2311HMSE-16#PBF datasheet, LTC2311HMSE-16#PBF pinout, LTC2311HMSE-16#PBF application, or LTC2311HMSE-16#PBF equivalent, key selection criteria include its wide input common mode range (0 V to VDD), dual-mode CMOS/LVDS serial interface, integrated 4.096 V reference with 20 ppm/°C drift, 1-cycle latency, and MSOP-16 package with exposed thermal pad.
Technical Context
The LTC2311HMSE-16#PBF implements a SAR architecture with differential sampling switch and 16-bit CDAC, achieving one-cycle latency and full 16-bit resolution without missing codes. Its internal reference buffer supports both 2.048 V and 4.096 V outputs, while REFIN accepts 1.25 V external reference input.
It features configurable I/O mode via CMOS/LVDS pin: grounded for CMOS, tied to OVDD for LVDS, or floating for low-power LVDS. Digital interface operates at 1.8 V–2.5 V OVDD, supporting up to 105 MHz SCK frequency with falling-edge data capture and TTL-compatible CNV input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level quantization with no missing codes across temperature. |
| Sampling Rate | 5 Msps - enables real-time digitization of signals up to ~2.2 MHz Nyquist bandwidth. |
| INL (typ) | ±3 LSB - ensures accurate amplitude fidelity for precision measurement applications. |
| SNR (typ) | 81.6 dB at fIN = 2.2 MHz - delivers >13.2 effective bits for high-fidelity signal capture. |
| Input Range | ±4.096 V differential (8 VP-P) - supports wide dynamic range with high common-mode rejection. |
| Reference | Internal 4.096 V ±0.3% with ≤20 ppm/°C drift - eliminates need for external reference in most designs. |
| Power (5V) | 50 mW at 5 Msps - balances speed and efficiency; drops to 0.5 µW in sleep mode. |
| Temp Range | –40°C to +125°C - qualified for automotive under-hood, industrial motor control, and avionics use. |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed thermal pad (Pin 17), RoHS-compliant, lead-free finish. Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11) | Analog/Digital Ground Return | Must connect directly to solid ground plane; multiple pins reduce impedance and improve noise immunity. |
| REFIN (Pin 2) | 1.25 V Reference Buffer I/O | Outputs buffered 1.25 V; grounding disables REFOUT buffer to enable external reference drive. |
| REFOUT (Pin 3) | Internal Reference Output | Provides 4.096 V (or 2.048 V) temperature-compensated reference; requires 10 µF local decoupling. |
| VDD (Pin 4) | Analog Power Supply | Accepts 3.13–5.25 V; bypass with 1 µF ceramic capacitor near pin for stable ADC core operation. |
| AIN+, AIN– (Pins 6, 7) | Differential Analog Inputs | Support 0 V to VDD common mode; full-scale differential swing = ±REFOUT (e.g., ±4.096 V). |
| CNV (Pin 9) | Convert Initiation Input | TTL-compatible; falling edge triggers conversion and initiates readout; low-jitter timing critical for SNR. |
| CMOS/LVDS (Pin 10) | I/O Mode Select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures interface before power-up. |
| OVDD (Pin 12) | Digital I/O Supply | 1.71–2.63 V supply for SDO/SCK logic levels; must match host interface voltage (e.g., FPGA I/O bank). |
| SDO+ (Pin 14) | Serial Data Output (CMOS) | MSB-first output on 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; supports up to 105 MHz for 5 Msps throughput. |
| Exposed Pad (Pin 17) | Thermal & Electrical Ground | Must be soldered to PCB ground plane - essential for thermal dissipation and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode digital interface | Hardware-selectable CMOS or LVDS I/O reduces EMI and enables flexible FPGA/CPLD interfacing without level shifters. |
| Onboard precision reference | Integrated 4.096 V reference with ≤20 ppm/°C drift eliminates external reference IC and associated layout complexity. |
| One-cycle latency | Enables deterministic real-time control loops with minimal pipeline delay - critical for closed-loop motor control. |
| Wide common mode input range | 0 V to VDD allows direct connection to op-amp outputs or sensor front-ends without level-shifting circuitry. |
| Low-power sleep modes | 0.5 µW sleep current extends battery life in portable instrumentation and remote sensing nodes. |
| High CMRR (85 dB) | Maintains accuracy in noisy industrial environments by rejecting shared-mode interference on differential inputs. |
Applications
| High-Speed Data Acquisition | Optical Networking |
|---|---|
Use Scenario: Digitizing fast transient waveforms from oscilloscopes, spectrum analyzers, or LIDAR time-of-flight receivers. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 5 Msps samples with 1-cycle latency and 81.6 dB SNR for post-processing FFTs. Use Value: Enables 32k-point FFT analysis at 5 Msps with <1 LSB integral nonlinearity error, preserving signal integrity for spectral resolution. | Use Scenario: Monitoring laser bias current and photodiode feedback in 100G/400G coherent optical transceivers. IC Role / Device Role / Timing Role: High-accuracy analog monitoring ADC interfaced to FPGA via LVDS for low-noise, high-speed telemetry. Use Value: Delivers 16-bit resolution and 85 dB CMRR to reject switching noise from adjacent DC-DC converters in dense line-card layouts. |
| Automotive Motor Control | Multiphase Motor Control |
Use Scenario: Sampling phase currents and DC-link voltage in EV traction inverters operating at –40°C to 125°C ambient. IC Role / Device Role / Timing Role: Temperature-hardened ADC providing isolated current feedback to MCU with precise timing alignment to PWM cycles. Use Value: Guaranteed operation across full automotive temperature range with ±3 LSB INL ensures torque ripple <0.5% in field-oriented control. | Use Scenario: Real-time current and position sensing in industrial servo drives with six-phase PMSM motors. IC Role / Device Role / Timing Role: Simultaneous multi-channel sampling (via sequencer or parallel ADCs) synchronized to gate driver timing. Use Value: 5 Msps throughput and 1-cycle latency allow sub-microsecond current loop update rates for <10 µs torque response. |
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 |
|---|---|---|---|
| ADS8860IRGET | 16-bit, 1 Msps, SPI-only CMOS interface, no internal reference, 1.8 V supply only. | Limited to lower-speed precision applications; lacks LVDS, internal ref, and extended temp grade. | Select when cost-sensitive, low-power, room-temp designs prioritize simplicity over speed and integration. |
| AD7626BCPZ | 16-bit, 10 Msps, parallel + serial interface, 5 V supply, ±5 V input range, no integrated reference. | Higher speed but larger footprint (48-lead LFCSP); requires external reference and level-shifting for modern FPGAs. | Select when maximum throughput (>5 Msps) and parallel bus access are required, and board space permits larger package. |
Compared with ADS8860IRGET and AD7626BCPZ, the LTC2311HMSE-16#PBF uniquely combines 5 Msps speed, integrated 4.096 V reference, LVDS/CMOS flexibility, and –40°C to 125°C qualification in a compact MSOP-16 - reducing BOM count and layout risk for ruggedized embedded systems.
Availability
LTC2311HMSE-16#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking telemetry, and automotive motor control requiring stable component supply across extended temperature ranges.
Supply support for LTC2311HMSE-16#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 LTC2311-16 product line was designed by Linear Technology (acquired by ADI in 2017) to deliver high-speed, high-accuracy SAR ADC performance in compact packages with integrated references - targeting demanding applications where speed, precision, and reliability converge.
FAQ
What is the operating temperature range of the LTC2311HMSE-16#PBF?
The LTC2311HMSE-16#PBF is rated for continuous operation from –40°C to +125°C, making it suitable for under-hood automotive, industrial motor drives, and avionics applications. This H-grade qualification is explicitly confirmed in the Absolute Maximum Ratings table and Order Information section of the datasheet, with thermal design requiring proper soldering of the exposed pad to a ground plane.
Does the LTC2311HMSE-16#PBF require an external reference?
No, the LTC2311HMSE-16#PBF includes an onboard low-drift (≤20 ppm/°C) 4.096 V temperature-compensated reference buffer. It also provides a 1.25 V buffered REFIN pin that can accept an external reference or be grounded to disable the internal REFOUT buffer - enabling flexible reference configuration without mandatory external components.
How does the CMOS/LVDS pin (Pin 10) configure the digital interface?
The CMOS/LVDS pin (Pin 10) selects interface mode: grounding enables CMOS I/O (single-ended SDO+/SCK+), tying to OVDD enables LVDS (differential SDO+/SDO–, SCK+/SCK–), and leaving it floating activates low-power LVDS mode. This hardware-selectable configuration occurs at power-up and determines pin functionality and timing requirements for the serial interface.
What is the minimum SCK period supported by the LTC2311HMSE-16#PBF?
The LTC2311HMSE-16#PBF supports a minimum SCK period of 9.4 ns (106.4 MHz max frequency) in CMOS mode, enabling reliable 5 Msps sampling with sufficient setup/hold margins. This timing is guaranteed across temperature and supply voltage, with tSCKH and tSCKL each ≥4 ns, allowing robust interface design with modern FPGAs and microcontrollers.
Can the LTC2311HMSE-16#PBF digitize single-ended signals?
Yes, the LTC2311HMSE-16#PBF supports pseudo-differential unipolar and bipolar configurations without reconfiguration. For single-ended signals, tie AIN– to a stable reference (e.g., ground or VREF/2) and apply the signal to AIN+, leveraging the device's wide 0 V to VDD common mode range and 85 dB CMRR to reject shared noise.
LTC2311HMSE-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- 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 ~ 125°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2311HMSE-16#PBF FAQ
1.How can I place an order for LTC2311HMSE-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-16#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 LTC2311HMSE-16#PBF reliable?
The price and inventory of LTC2311HMSE-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2311HMSE-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-16#PBF?
LTC2311HMSE-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-16#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 LTC2311HMSE-16#PBF?
For technical support, including LTC2311HMSE-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-16#PBF requirements.
6.How does Aetrix verify that LTC2311HMSE-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-16#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 LTC2311HMSE-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-16#PBF?
All LTC2311HMSE-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-16#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 LTC2311HMSE-16#PBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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