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Analog Devices Inc. LTC2311IMSE-16#WPBF
- Part No.:
- LTC2311IMSE-16#WPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311IMSE-16#WPBF.pdf
- Description:
- 16-B, 5MSPS DIFF IN ADC W/ WIDE
- Quantity:
- Payment:
- Shipping:
Inventory:2,883
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Product details
Overview
LTC2311IMSE-16#WPBF from Analog Devices 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, and wide 0 V to VDD common mode input range. It operates from single 3.3 V or 5 V supply, integrates a low-drift 4.096 V internal reference, and supports CMOS or LVDS SPI-compatible serial interface - ideal for high-speed data acquisition in automotive sensor interfaces.
For engineers reviewing the LTC2311IMSE-16#WPBF datasheet, LTC2311IMSE-16#WPBF pinout, LTC2311IMSE-16#WPBF application, or LTC2311IMSE-16#WPBF equivalent, key selection criteria include guaranteed no-missing-codes performance at 16 bits, AEC-Q100 qualification for –40°C to +85°C operation, 1-cycle latency timing, and dual-mode I/O compatibility with FPGA or DSP host controllers.
Technical Context
The LTC2311IMSE-16#WPBF implements a fully differential SAR architecture with integrated sample-and-hold, 100 MHz –3 dB input bandwidth, and aperture jitter of 1 psRMS. Its internal 4.096 V reference exhibits ≤20 ppm/°C drift and supports external 1.25 V buffered reference input via REFIN pin.
It features configurable digital I/O: CMOS mode (OVDD = 1.8 V/2.5 V), LVDS mode (100 Ω differential termination), or low-power LVDS mode (floating CMOS/LVDS pin). Conversion is initiated by TTL-compatible CNV pulse, with one-cycle latency and SDO data valid on SCK falling edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, guaranteed no missing codes - ensures full dynamic range utilization without code gaps in precision measurement systems. |
| Sampling Rate | 5 Msps maximum - enables real-time capture of signals up to ~2.2 MHz Nyquist frequency with minimal aliasing risk. |
| INL | ±3 LSB typical, ±8 LSB guaranteed - maintains linearity critical for closed-loop control accuracy and calibration traceability. |
| SNR | 81.6 dB typical at fIN = 2.2 MHz - delivers >13.2 effective number of bits (ENOB) for high-fidelity signal digitization. |
| Reference | Internal 4.096 V ±0.3% (20 ppm/°C max) - eliminates need for external reference IC in space-constrained automotive modules. |
| Power Dissipation | 50 mW at 5 V / 5 Msps (CMOS mode) - balances speed and thermal budget in thermally isolated ECUs. |
| Operating Temp | –40°C to +85°C - meets industrial and automotive under-hood ambient requirements per AEC-Q100 Grade 3. |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed pad (Pin 17), lead-free finish, tape-and-reel packaging. Exposed pad must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11) | Ground reference | Multiple dedicated ground pins minimize ground bounce and ensure stable reference for analog and digital sections. |
| REFIN (Pin 2) | Reference buffer I/O | Nominally outputs 1.25 V; grounding disables REFOUT buffer to enable external reference injection into REFOUT. |
| REFOUT (Pin 3) | Reference output | Provides 4.096 V ±0.3% buffered reference; requires 10 µF X5R ceramic decoupling close to pin. |
| VDD (Pin 4) | Analog power supply | Accepts 4.75 V to 5.25 V (5 V mode) or 3.13 V to 3.47 V (3.3 V mode); bypass with 1 µF ceramic capacitor. |
| AIN+, AIN– (Pins 6, 7) | Differential analog inputs | Support ±4.096 V differential swing (8 VP-P) with 0 V to VDD common mode range - accepts bipolar/unipolar/pseudo-diff signals without configuration. |
| CNV (Pin 9) | Convert trigger input | TTL-compatible sampling edge detector; falling edge initiates conversion and releases prior result on SDO. |
| 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 V to 2.5 V supply for SDO/SCK logic levels - matches FPGA I/O banks (1.8 V or 2.5 V) or LVDS receivers. |
| 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; supports up to 105 MHz (9.4 ns min period). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Automotive-grade reliability certified for –40°C to +85°C operation, including HTOL and ESD testing per automotive standards. |
| Configurable I/O interface | Hardware-selectable CMOS or LVDS serial interface eliminates need for level-shifting components or FPGA I/O reconfiguration. |
| Onboard temperature-compensated reference | Integrated 4.096 V reference with ≤20 ppm/°C drift reduces BOM count and improves system-level temperature stability vs. discrete references. |
| One-cycle latency | Output data from previous conversion available immediately after CNV falling edge - enables deterministic real-time control loop timing. |
| Low-power sleep modes | 5 µW sleep current (VDD = 5 V) and 0.3 µW (VDD = 3.3 V) enable rapid wake-up for duty-cycled sensing in battery-powered modules. |
Applications
| Automotive Radar Signal Conditioning | Industrial Motor Phase Current Monitoring |
|---|---|
|
Use Scenario: Digitizing IF outputs from 77 GHz radar transceivers with wide dynamic range and low distortion. IC Role / Device Role / Timing Role: High-speed SAR ADC capturing baseband I/Q signals at 5 Msps with 81 dB SNR and <–90 dB THD. Use Value: Enables accurate Doppler shift detection and object resolution without external amplification or filtering stages. |
Use Scenario: Real-time sampling of shunt-based phase currents in 3-phase inverters for field-oriented control. IC Role / Device Role / Timing Role: Differential ADC rejecting common-mode noise from PWM switching transients while maintaining 16-bit precision. Use Value: Improves torque ripple suppression and efficiency by delivering clean current feedback with <±3 LSB INL linearity. |
| Optical Network Transimpedance Amplifier Interface | High-Speed Data Acquisition Module |
|
Use Scenario: Converting photodiode current outputs from fiber-optic receivers in 10G/25G Ethernet line cards. IC Role / Device Role / Timing Role: Low-noise ADC interfacing directly with TIAs, leveraging 100 MHz input bandwidth and 1 psRMS aperture jitter. Use Value: Preserves signal integrity for BER-sensitive applications by minimizing quantization-induced error floor. |
Use Scenario: Modular DAQ system for test equipment requiring flexible input ranges and automotive-grade environmental tolerance. IC Role / Device Role / Timing Role: Standalone 16-bit ADC with internal reference and SPI/LVDS output, supporting both benchtop and embedded deployment. Use Value: Reduces design cycle time via drop-in compatibility across platforms and eliminates external reference calibration effort. |
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, no internal reference, requires external 5 V reference; LVDS-only interface; 32-lead LFCSP package. | Better resolution but higher power (65 mW) and no AEC-Q100 qualification; suited for lab-grade instrumentation over automotive. | Select when ENOB >14.5 bits is mandatory and external reference infrastructure exists. |
| ADS8860IDRCT | 16-bit, 1 Msps, internal 2.5 V reference, SPI-only CMOS interface; 10-lead VSSOP package; lower power (15 mW @ 1 Msps). | Slower throughput and narrower temp range (–40°C to +85°C, non-AEC-Q100); optimized for portable medical sensors. | Select for cost-sensitive, lower-speed applications where 5 Msps is unnecessary and board space is constrained. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2311IMSE-16#WPBF uniquely combines AEC-Q100 qualification, integrated 4.096 V reference, hardware-configurable I/O, and 5 Msps throughput in a compact MSOP - making it optimal for automotive and industrial edge-sensing nodes demanding robustness and integration.
Availability
LTC2311IMSE-16#WPBF is available at Aetrix Electronics and suitable for automotive radar front-ends, motor control systems, optical network monitoring, and high-speed test equipment requiring stable component supply across extended temperature ranges.
Supply support for LTC2311IMSE-16#WPBF 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.
The LTC2311-16 product line delivers high-speed, high-accuracy SAR ADCs optimized for demanding signal acquisition in space-, power-, and reliability-constrained environments - especially automotive and industrial edge sensing.
FAQ
What is the operating temperature range for the LTC2311IMSE-16#WPBF?
The LTC2311IMSE-16#WPBF is rated for –40°C to +85°C operation and is AEC-Q100 qualified (Grade 3), making it suitable for under-hood automotive applications and industrial environments where thermal stability is critical. This range is confirmed in the Absolute Maximum Ratings table and ORDER INFORMATION section of the datasheet.
Does the LTC2311IMSE-16#WPBF require an external reference voltage?
No - the LTC2311IMSE-16#WPBF includes an onboard low-drift 4.096 V temperature-compensated reference buffer. However, it also supports external reference injection via the REFIN pin (1.25 V buffered output) and REFOUT pin (when REFIN is grounded), providing flexibility for systems requiring tighter reference accuracy or different voltage levels.
How does the CMOS/LVDS pin (Pin 10) configure the serial interface on the LTC2311IMSE-16#WPBF?
On the LTC2311IMSE-16#WPBF, Pin 10 (CMOS/LVDS) selects the digital interface mode: grounding enables CMOS I/O (single-ended SDO+/SCK+), tying to OVDD enables LVDS mode (differential SDO+/SDO– and SCK+/SCK–), and floating enables low-power LVDS mode. This hardware-selectable feature avoids firmware dependency and simplifies PCB layout reuse.
What is the power consumption of the LTC2311IMSE-16#WPBF in sleep mode?
The LTC2311IMSE-16#WPBF consumes only 0.5 µW in sleep mode at 5 V supply and 0.3 µW at 3.3 V supply, as specified in the POWER REQUIREMENTS table. This ultra-low quiescent current enables rapid wake-up for duty-cycled sensing in battery-backed or energy-harvesting automotive subsystems.
Can the LTC2311IMSE-16#WPBF accept single-ended input signals?
Yes - the LTC2311IMSE-16#WPBF supports pseudo-differential unipolar and bipolar configurations without hardware or software reconfiguration. For single-ended signals, connect the reference (e.g., ground or mid-rail) to AIN– and the signal to AIN+, leveraging its wide 0 V to VDD common mode range and high CMRR (>85 dB at 2.2 MHz) for noise rejection.
LTC2311IMSE-16#WPBF 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, 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
LTC2311IMSE-16#WPBF FAQ
1.How can I place an order for LTC2311IMSE-16#WPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311IMSE-16#WPBF 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#WPBF reliable?
The price and inventory of LTC2311IMSE-16#WPBF 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#WPBF is usually 5 days.
3.What payment methods are accepted for LTC2311IMSE-16#WPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311IMSE-16#WPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311IMSE-16#WPBF?
LTC2311IMSE-16#WPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311IMSE-16#WPBF 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#WPBF?
For technical support, including LTC2311IMSE-16#WPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311IMSE-16#WPBF requirements.
6.How does Aetrix verify that LTC2311IMSE-16#WPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311IMSE-16#WPBF 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#WPBF meets industry standards.
7.What is the process for return or replacement of LTC2311IMSE-16#WPBF?
All LTC2311IMSE-16#WPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311IMSE-16#WPBF, 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#WPBF part is unused and in its original packaging.
Return procedure for LTC2311IMSE-16#WPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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