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Analog Devices Inc. LTC2311HMSE-16#WPBF
- Part No.:
- LTC2311HMSE-16#WPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-16#WPBF.pdf
- Description:
- 16-B, 5MSPS DIFF IN ADC W/ WIDE
- Quantity:
- Payment:
- Shipping:
Inventory:1,059
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Product details
Overview
LTC2311HMSE-16#WPBF from Analog Devices is a 16-bit, 5 Msps differential successive approximation register (SAR) analog-to-digital converter with ±3 LSB INL (typ), 81 dB SNR (typ) at 2.2 MHz, and integrated 4.096 V temperature-compensated reference. It operates from a single 3.3 V or 5 V supply, supports CMOS or LVDS serial interface, and is AEC-Q100 qualified for automotive high-speed data acquisition.
For engineers reviewing the LTC2311HMSE-16#WPBF datasheet, LTC2311HMSE-16#WPBF pinout, LTC2311HMSE-16#WPBF application, or LTC2311HMSE-16#WPBF equivalent, key selection considerations include guaranteed no-missing-codes operation over –40°C to 125°C, 1-cycle latency timing, differential input common mode range up to VDD, and dual-mode I/O voltage compatibility (1.8 V–2.5 V).
Technical Context
The LTC2311HMSE-16#WPBF implements a true differential SAR architecture with internal sample-and-hold, 16-bit CDAC, and binary-weighted reference ladder comparison. Its wide input common mode range (0 V to VDD) enables direct interfacing with unbuffered sensors and op-amp outputs without level-shifting.
It features configurable digital I/O: CMOS mode (single-ended SCK/SDO), LVDS mode (differential SCK±/SDO±), or low-power LVDS (floating CMOS/LVDS pin). Internal reference offers 20 ppm/°C max drift and supports external 1.25 V buffered reference input via REFIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536 distinct output codes with no missing codes across full temperature range. |
| Sampling Rate | 5 Msps - enables real-time digitization of signals up to 2.2 MHz Nyquist bandwidth with one-cycle latency. |
| INL | ±3 LSB (typ), ±8 LSB (max) - ensures monotonicity and <0.012% full-scale linearity error for precision measurement. |
| SNR | 81.6 dB (typ) at fIN = 2.2 MHz - delivers >13.2 effective number of bits (ENOB) for high-fidelity signal capture. |
| Input Range | ±4.096 V differential (8 VP-P) - supports wide dynamic range while rejecting common-mode noise up to 85 dB. |
| Reference | Internal 4.096 V ±0.34% (20 ppm/°C max) - eliminates need for external reference in space-constrained automotive and industrial designs. |
| Power | 50 mW at 5 V / 5 Msps - balances speed and efficiency; sleep mode reduces current to 0.5 µW for intermittent sampling. |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) MSOP with exposed pad (Pin 17), rated for –40°C to 125°C operation and AEC-Q100 automotive qualification.
| 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) | 1.25 V buffered reference I/O | Accepts external 1.25 V reference or disables internal REFOUT buffer when grounded; requires 10 µF local decoupling. |
| REFOUT (Pin 3) | 4.096 V reference output | Provides low-drift internal reference; can be overdriven by external source when REFIN = GND; needs 10 µF ceramic decoupling. |
| VDD (Pin 4) | Analog power supply | Single 3.3 V or 5 V supply powers ADC core and reference; bypassed with 1 µF ceramic capacitor near pin. |
| AIN+, AIN– (Pins 6, 7) | Differential analog inputs | Support 0 V to VDD common mode range and ±4.096 V differential swing; input capacitance 10 pF, RON ≈15 Ω. |
| CNV (Pin 9) | Convert control input | TTL-compatible edge-triggered sampling command; falling edge initiates conversion and readout; low-jitter requirement. |
| CMOS/LVDS (Pin 10) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures serial interface without external logic. |
| OVDD (Pin 12) | Digital I/O supply | 1.71 V–2.5 V supply sets logic levels for SCK/SDO; decoupled with 1 µF ceramic capacitor. |
| SCK+ (Pin 16) | Serial clock input | In CMOS mode: single-ended clock; in LVDS mode: differential clock positive leg; supports up to 105 MHz. |
| SDO+ (Pin 14) | Serial data output | MSB-first output on SCK falling edge; CMOS mode only - LVDS uses SDO+ (Pin 14) and SDO– (Pin 13). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Rated for –40°C to 125°C operation with automotive-grade reliability testing and traceable manufacturing controls. |
| Dual-mode serial interface | Hardware-selectable CMOS or LVDS I/O eliminates need for external level translators and simplifies FPGA/CPLD integration. |
| Onboard 4.096 V reference | 20 ppm/°C max drift and 0.34% initial accuracy reduce BOM count and layout complexity in isolated measurement systems. |
| One-cycle latency | Enables deterministic real-time control loops with minimal pipeline delay between CNV edge and valid output data. |
| Nap/sleep power modes | Reduces current to 3.5 mA (nap) or 0.5 µW (sleep), enabling ultra-low average power in battery-powered or duty-cycled DAQ systems. |
Applications
| Automotive Radar Signal Processing | High-Speed Industrial Data Acquisition |
|---|---|
Use Scenario: Digitizing IF outputs from 77 GHz radar receivers with tight SNR and THD requirements. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 2.2 MHz chirp returns with 81.6 dB SNR and –90 dB THD. Use Value: Enables accurate range/velocity resolution without external reference or driver amplifiers due to integrated 4.096 V reference and wide common mode range. |
Use Scenario: Real-time monitoring of motor phase currents and voltages in servo drives with >12-bit ENOB. IC Role / Device Role / Timing Role: High-throughput differential ADC interfaced to isolation amplifiers for isolated current sensing. Use Value: 5 Msps throughput and 1-cycle latency support closed-loop control at >10 kHz update rates; CMOS/LVDS flexibility eases FPGA interface design. |
| Optical Network Monitoring | Medical Ultrasound Beamforming |
Use Scenario: Capturing transient optical power fluctuations in coherent transceivers with sub-LSB linearity. IC Role / Device Role / Timing Role: Precision ADC for photodiode amplifier outputs requiring ±3 LSB INL and no missing codes. Use Value: Guaranteed 16-bit monotonicity over –40°C to 125°C ensures calibration stability across thermal cycling in telecom chassis. |
Use Scenario: Sampling echo return signals from phased-array transducers with >70 dB dynamic range. IC Role / Device Role / Timing Role: Low-noise SAR ADC providing 81.6 dB SNR at 2.2 MHz for time-of-flight computation. Use Value: Differential input rejects common-mode noise from high-voltage pulsers; internal reference eliminates drift-induced gain error in portable systems. |
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, 1.8 V/5 V dual supply, no internal reference, SPI-only CMOS interface. | Requires external reference and level-shifting for 1.8 V logic; higher resolution but larger package (32-lead LFCSP). | Choose when 18-bit resolution is mandatory and board space allows larger footprint and external reference design. |
| ADS8860IDRCT | 16-bit, 1 Msps, 2.5 V–5 V supply, internal 2.5 V reference, SPI CMOS only, smaller 10-lead VSSOP package. | Lower speed and SNR (77 dB); not AEC-Q100 qualified; limited to commercial temperature range (–40°C to 85°C). | Choose for cost-sensitive, lower-speed industrial sensors where automotive qualification and 5 Msps are not required. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2311HMSE-16#WPBF uniquely combines AEC-Q100 qualification, integrated 4.096 V reference, LVDS/CMOS interface flexibility, and guaranteed no-missing-codes operation across –40°C to 125°C - making it optimal for automotive and harsh-environment high-speed DAQ where reliability and integration are critical.
Availability
LTC2311HMSE-16#WPBF is available at Aetrix Electronics and suitable for automotive radar signal processing, high-speed industrial data acquisition, and optical network monitoring requiring stable component supply across extended temperature ranges.
Supply support for LTC2311HMSE-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2311HMSE-16#WPBF belongs to the LTC2311 family of high-speed SAR ADCs designed specifically for demanding automotive and industrial applications requiring precision, speed, and extended temperature reliability without external references.
FAQ
What is the operating temperature range of the LTC2311HMSE-16#WPBF?
The LTC2311HMSE-16#WPBF is specified for continuous operation from –40°C to 125°C and is AEC-Q100 qualified for automotive applications. This rating is confirmed in the Absolute Maximum Ratings table and ORDER INFORMATION section of the datasheet, where "H" grade denotes the –40°C to 125°C range and "#WPBF" suffix indicates automotive qualification with controlled manufacturing.
Does the LTC2311HMSE-16#WPBF require an external reference?
No, the LTC2311HMSE-16#WPBF includes an onboard 4.096 V temperature-compensated reference with 20 ppm/°C max drift and 0.34% initial accuracy. An external 1.25 V reference may be applied via REFIN (Pin 2) to override the internal reference, but it is not required for standard operation.
How does the CMOS/LVDS pin (Pin 10) configure the serial interface?
The CMOS/LVDS pin (Pin 10) selects interface mode: grounding enables CMOS (single-ended SCK+/SDO+), tying to OVDD enables LVDS (differential SCK±/SDO±), and leaving floating enables low-power LVDS. This hardware-selectable configuration avoids firmware overhead and ensures deterministic interface behavior at power-up.
What is the significance of the "#WPBF" suffix in LTC2311HMSE-16#WPBF?
The "#WPBF" suffix denotes an automotive-grade version of the LTC2311HMSE-16#WPBF with controlled manufacturing, enhanced reliability testing, and AEC-Q100 qualification. Per the datasheet's ORDER INFORMATION table, "#W" indicates automotive qualification, "PBF" means lead-free finish, and "TRPBF" or "WTRPBF" indicate tape-and-reel packaging.
Can the LTC2311HMSE-16#WPBF operate from a 3.3 V supply?
Yes, the LTC2311HMSE-16#WPBF supports both 3.3 V and 5 V VDD supplies, with specified performance across the full range (3.13 V to 3.47 V for 3.3 V operation; 4.75 V to 5.25 V for 5 V operation). Power dissipation is 30 mW at 3.3 V/5 Msps, and sleep mode draws only 0.3 µW - enabling flexible power system design.
LTC2311HMSE-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 ~ 125°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
LTC2311HMSE-16#WPBF FAQ
1.How can I place an order for LTC2311HMSE-16#WPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-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 LTC2311HMSE-16#WPBF reliable?
The price and inventory of LTC2311HMSE-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 LTC2311HMSE-16#WPBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-16#WPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-16#WPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-16#WPBF?
LTC2311HMSE-16#WPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-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 LTC2311HMSE-16#WPBF?
For technical support, including LTC2311HMSE-16#WPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-16#WPBF requirements.
6.How does Aetrix verify that LTC2311HMSE-16#WPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-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 LTC2311HMSE-16#WPBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-16#WPBF?
All LTC2311HMSE-16#WPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-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 LTC2311HMSE-16#WPBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-16#WPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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