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Analog Devices Inc. LTC2311HMSE-14#WTRPBF
- Part No.:
- LTC2311HMSE-14#WTRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-14#WTRPBF.pdf
- Description:
- 14-B + SIGN, 5MSPS DIFF IN ADC W
- Quantity:
- Payment:
- Shipping:
Inventory:3,434
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Product details
Overview
LTC2311HMSE-14#WTRPBF from Analog Devices is a 14-bit + sign successive approximation register (SAR) analog-to-digital converter with differential inputs, 5Msps throughput, ±0.75LSB typical INL, 80dB SNR at 2.2MHz, and guaranteed operation from –40°C to 125°C. It integrates a low-drift 4.096V internal reference and supports CMOS or LVDS serial interface - ideal for high-speed automotive data acquisition where wide common-mode range and AEC-Q100 qualification are required.
For engineers reviewing the LTC2311HMSE-14#WTRPBF datasheet, LTC2311HMSE-14#WTRPBF pinout, LTC2311HMSE-14#WTRPBF application, or LTC2311HMSE-14#WTRPBF equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade thermal performance, and real-world timing and dynamic accuracy metrics - all specific to the #WTRPBF tape-and-reel automotive variant in 16-lead MSOP.
Technical Context
The LTC2311HMSE-14#WTRPBF implements a 15-bit SAR architecture with two-phase operation: acquisition (sample capacitor connected to AIN+/AIN–) followed by conversion using a binary-weighted CDAC and differential comparator referenced to REFOUT. Its one-cycle latency enables deterministic timing control in real-time systems.
It features dual-mode digital I/O: CMOS (single-ended SCK/SDO) or LVDS (differential SCK±/SDO±), selected via the CMOS/LVDS pin; internal 4.096V reference with 20ppm/°C max drift; and configurable power states (active/nap/sleep) achieving 0.5μW sleep current at 5V. All specifications - including ±2LSB guaranteed INL and –90dB THD - are validated across –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit + sign (15-bit two's complement output); delivers 215 codes over ±REFOUT full-scale span. |
| Sampling Rate | 5Msps maximum; enables real-time digitization of signals up to 2.2MHz Nyquist bandwidth with 3ns transient response. |
| INL Error | ±2LSB guaranteed over –40°C to 125°C; ensures monotonicity and no missing codes in safety-critical automotive sampling. |
| SNR / THD | 80.6dB typical SNR and –90dB typical THD at fIN = 2.2MHz; supports high-fidelity signal capture in optical networking and motor control. |
| Reference | Internal 4.096V ±0.3% buffered reference with 20ppm/°C max drift; eliminates external reference component count and layout sensitivity. |
| Power Dissipation | 50mW typical at 5V/5Msps; reduces thermal load in dense automotive ECUs; drops to 0.5μW in sleep mode for wake-on-event architectures. |
| Supply Range | Single 4.75V–5.25V VDD or 3.13V–3.47V VDD; compatible with standard automotive 5V rails and low-voltage domains. |
Pinout & Package
Package: 16-lead (4mm × 5mm) plastic MSOP with exposed pad (Pin 17), lead-free finish, tape-and-reel (#WTRPBF). AEC-Q100 qualified for automotive use; exposed pad must be soldered to PCB ground plane for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11, 17) | Ground reference and thermal path | All GND pins plus exposed pad must connect directly to solid ground plane; critical for noise immunity and thermal dissipation in automotive environments. |
| REFIN (Pin 2) | 1.25V reference buffer I/O | Nominally outputs 1.25V; grounding disables REFOUT buffer to enable external reference drive - supports flexible system-level reference sourcing. |
| REFOUT (Pin 3) | 4.096V temperature-compensated reference output | Provides stable, low-drift reference; requires 10µF local ceramic decoupling; short-circuit tolerant up to 30mA. |
| VDD (Pin 4) | Analog and core digital supply | Accepts 4.75V–5.25V (5V mode) or 3.13V–3.47V (3.3V mode); bypassed with 1µF ceramic capacitor for low-noise ADC operation. |
| AIN+, AIN– (Pins 6, 7) | Differential analog input terminals | Support ±REFOUT full-scale (8VP-P) with 0V–VDD common-mode range; modeled as 15Ω RON + 10pF CIN during acquisition. |
| CNV (Pin 9) | Convert initiation input | TTL-compatible; falling edge triggers conversion and initiates readout; one-cycle latency enables precise timing synchronization with FPGA/DSP. |
| 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 | 1.71V–2.63V range; sets logic levels for SCK/SDO; decoupled with 1µF ceramic cap; supports 1.8V or 2.5V host interfaces. |
| SCK+ (Pin 16) | Serial clock input (CMOS mode) | Falling-edge triggered; supports up to 105MHz SCK frequency; defines timing for MSB-first 15-bit data transfer. |
| SDO+ (Pin 14) | Serial data output (CMOS mode) | Outputs conversion result MSB-first on SCK falling edges; logic level referenced to OVDD; high-impedance when not active. |
| SCK– (Pin 15), SDO– (Pin 13) | Differential clock/data (LVDS mode) | Used only in LVDS mode; require external 100Ω differential termination at receiver; reduce EMI in noisy automotive harnesses. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade H qualification | Validated for –40°C to 125°C operation with automotive reliability testing - enables direct use in engine control, ADAS sensors, and battery management. |
| Configurable CMOS/LVDS interface | Hardware-selectable I/O mode via Pin 10 eliminates need for separate part numbers or firmware adaptation across board variants. |
| Onboard 4.096V reference with 20ppm/°C drift | Removes external reference IC and associated layout complexity while maintaining <±0.3% initial accuracy and stability over temperature. |
| One-cycle latency & 5Msps throughput | Enables deterministic real-time control loops in multiphase motor drives and closed-loop optical transceivers without pipeline delay compensation. |
| Three power states (Active/Nap/Sleep) | Reduces system standby power to sub-microwatt levels - critical for always-on vehicle subsystems with strict ISO 16750-2 quiescent current limits. |
| 8VP-P differential input with 0V–VDD common-mode range | Accepts industrial-grade sensor outputs (e.g., ±10V transducers via resistive scaling) without level-shifting circuitry, simplifying front-end design. |
Applications
| High-Speed Automotive Data Acquisition | Optical Network Monitoring |
|---|---|
Use Scenario: Real-time sampling of crankshaft position, camshaft timing, and exhaust gas oxygen signals in engine control units under extreme under-hood temperatures. IC Role / Device Role / Timing Role: Primary SAR ADC capturing synchronized multi-channel analog sensor data at 5Msps with deterministic one-cycle latency for closed-loop combustion control. Use Value: AEC-Q100 qualification and –40°C to 125°C guaranteed performance eliminate derating and qualification overhead; integrated reference ensures consistent accuracy across temperature swings. |
Use Scenario: Digitizing photodiode current outputs from DWDM channel monitors in 100G/400G optical line cards operating in telecom central offices. IC Role / Device Role / Timing Role: High-SNR front-end ADC converting low-noise analog monitor signals into digital domain for DSP-based wavelength drift analysis. Use Value: 80.6dB SNR and –90dB THD at 2.2MHz preserve small-signal integrity; LVDS interface rejects common-mode noise from adjacent high-speed SerDes lanes. |
| Multiphase Motor Control | Remote Industrial Sensor Nodes |
Use Scenario: Simultaneous sampling of three-phase current and bus voltage in traction inverters for electric powertrain systems. IC Role / Device Role / Timing Role: Differential-input ADC rejecting common-mode noise from high dv/dt switching waveforms while delivering synchronized 14-bit samples for FOC algorithms. Use Value: 85dB CMRR and wide input common-mode range (0V–VDD) tolerate large ground offsets between motor phases and controller; 50mW power enables compact heatsinkless designs. |
Use Scenario: Battery-powered wireless vibration sensors deployed on rotating machinery in oil & gas refineries, requiring long-life operation and high-resolution diagnostics. IC Role / Device Role / Timing Role: Low-power precision ADC acquiring accelerometer waveforms at programmable rates, entering sleep mode between bursts to extend battery life. Use Value: 0.5μW sleep current and fast wake-up (<10ms REFOUT stabilization) enable years of operation on coin-cell batteries; 14-bit resolution captures subtle bearing fault harmonics. |
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, 5Msps, SPI-only (no LVDS), 1.8V/3.3V I/O, –40°C to 85°C grade only | Lacks AEC-Q100 qualification and LVDS interface; higher resolution but lower SNR (79dB) and higher power (65mW) | Select when absolute resolution >14-bit is required and automotive temperature range is not needed. |
| MAX11198ETK+ | 14-bit, 5Msps, CMOS-only, internal 2.048V ref, –40°C to 125°C, 10-lead TDFN | No LVDS option, smaller package, lower SNR (77dB), no nap/sleep modes, no exposed thermal pad | Select for space-constrained industrial nodes where LVDS noise immunity is unnecessary and ultra-low footprint is prioritized. |
Compared with AD7960BCPZ-RL7 and MAX11198ETK+, the LTC2311HMSE-14#WTRPBF uniquely combines AEC-Q100 qualification, hardware-configurable LVDS/CMOS I/O, integrated 4.096V reference, and sub-microwatt sleep mode - making it the only drop-in solution for thermally demanding, noise-sensitive automotive and industrial real-time acquisition systems requiring both speed and robustness.
Availability
LTC2311HMSE-14#WTRPBF is available at Aetrix Electronics and suitable for high-speed automotive data acquisition, optical network monitoring, multiphase motor control, and remote industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2311HMSE-14#WTRPBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision signal chain solutions.
The LTC2311-14 product line delivers high-speed, low-noise SAR ADCs optimized for applications demanding wide dynamic range, deterministic timing, and rugged operation - especially in automotive, test equipment, and optical infrastructure where AEC-Q100 compliance and reference integration are critical.
FAQ
What is the guaranteed operating temperature range for the LTC2311HMSE-14#WTRPBF?
The LTC2311HMSE-14#WTRPBF is rated for continuous operation from –40°C to 125°C and is AEC-Q100 qualified for automotive applications. All key specifications - including ±2LSB INL, 80dB SNR, and 5Msps throughput - are guaranteed across this full range, with thermal design supported by the exposed pad (Pin 17) soldered to PCB ground.
Does the LTC2311HMSE-14#WTRPBF require an external reference?
No, the LTC2311HMSE-14#WTRPBF includes an onboard low-drift 4.096V temperature-compensated reference buffer (REFOUT, Pin 3) with 20ppm/°C max drift. An external reference can be used by grounding REFIN (Pin 2) to disable the internal buffer and driving REFOUT directly - but it is not required for standard operation.
How does the CMOS/LVDS pin (Pin 10) configure the digital interface?
Pin 10 (CMOS/LVDS) selects the serial interface mode: grounded for CMOS (single-ended SCK+/SDO+), tied to OVDD for LVDS (differential SCK±/SDO±), or left floating for low-power LVDS. This hardware-selectable configuration avoids firmware dependencies and supports mixed-signal board designs with varying noise environments.
What power savings does the LTC2311HMSE-14#WTRPBF offer in inactive periods?
In sleep mode, the LTC2311HMSE-14#WTRPBF draws just 0.5μW at 5V supply - reducing system quiescent power by >99.9% versus active operation (50mW). Wake-up time is <10ms due to fast REFOUT stabilization, enabling efficient burst-mode sensing in battery-powered automotive subsystems.
Can the LTC2311HMSE-14#WTRPBF digitize single-ended signals?
Yes - the LTC2311HMSE-14#WTRPBF supports pseudo-differential unipolar and bipolar configurations without reconfiguration. For single-ended signals, connect the reference (e.g., ground or mid-rail) to AIN– and the signal to AIN+, leveraging the ADC's 85dB CMRR to reject common-mode noise while maintaining full 14-bit resolution over half-scale.
LTC2311HMSE-14#WTRPBF 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:
- 14
- 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, 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
LTC2311HMSE-14#WTRPBF FAQ
1.How can I place an order for LTC2311HMSE-14#WTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-14#WTRPBF 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-14#WTRPBF reliable?
The price and inventory of LTC2311HMSE-14#WTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2311HMSE-14#WTRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-14#WTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-14#WTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-14#WTRPBF?
LTC2311HMSE-14#WTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-14#WTRPBF 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-14#WTRPBF?
For technical support, including LTC2311HMSE-14#WTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-14#WTRPBF requirements.
6.How does Aetrix verify that LTC2311HMSE-14#WTRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-14#WTRPBF 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-14#WTRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-14#WTRPBF?
All LTC2311HMSE-14#WTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-14#WTRPBF, 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-14#WTRPBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-14#WTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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