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Analog Devices Inc. LTC2311HMSE-16#WTRPBF
- Part No.:
- LTC2311HMSE-16#WTRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-16#WTRPBF.pdf
- Description:
- 16-B, 5MSPS DIFF IN ADC W/ WIDE
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
LTC2311HMSE-16#WTRPBF 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 guaranteed no missing codes over –40°C to +125°C. It operates from single 3.3 V or 5 V supply, features integrated 4.096 V temperature-compensated reference (20 ppm/°C max), and supports CMOS or LVDS serial interface - ideal for high-speed automotive data acquisition systems requiring wide dynamic range and high common-mode rejection.
For engineers reviewing the LTC2311HMSE-16#WTRPBF datasheet, LTC2311HMSE-16#WTRPBF pinout, LTC2311HMSE-16#WTRPBF application, or LTC2311HMSE-16#WTRPBF equivalent, key selection criteria include guaranteed AEC-Q100 qualification, 5 Msps throughput with one-cycle latency, differential input voltage range of ±4.096 V, internal reference stability over full temperature range, and dual I/O mode flexibility (CMOS/LVDS).
Technical Context
The LTC2311HMSE-16#WTRPBF implements a fully differential SAR architecture with on-chip sample-and-hold, 16-bit CDAC, and differential comparator. Its acquisition phase connects the 10 pF input capacitance (CIN) in series with ~15 Ω switch RON to AIN+/AIN–, enabling robust sampling of arbitrary common-mode signals between GND and VDD.
Conversion is triggered by a falling edge on CNV; output data is clocked MSB-first on SCK falling edges with one-cycle latency. The device supports three I/O modes via CMOS/LVDS pin: CMOS (grounded), LVDS (tied to OVDD), or low-power LVDS (floating), with configurable 1.8 V–2.5 V OVDD and 1.71 V–2.63 V tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across full operating temperature range. |
| Sampling Rate | 5 Msps - enables real-time digitization of signals up to ~2.2 MHz Nyquist bandwidth with minimal latency. |
| INL | ±3 LSB typical, ±8 LSB guaranteed - ensures accurate amplitude fidelity for precision measurement applications. |
| SNR | 81.6 dB typical at fIN = 2.2 MHz - supports >13.2 effective number of bits (ENOB) in high-frequency signal capture. |
| Reference | Internal 4.096 V ±0.34% (20 ppm/°C max drift) - eliminates need for external reference in space-constrained automotive designs. |
| Power Dissipation | 50 mW at 5 V / 5 Msps (CMOS mode); 5 μW in sleep mode - enables low-power operation during system idle periods. |
| Temperature Range | –40°C to +125°C - qualified per AEC-Q100 Grade 1, suitable for under-hood automotive environments. |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed pad (Pin 17), lead-free finish, tape-and-reel packaging (#WTRPBF denotes automotive-grade, wettable flank, RoHS-compliant variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11, 17) | Ground reference and thermal path | Multiple ground pins plus soldered exposed pad ensure low-impedance return path and thermal dissipation for stable ADC performance. |
| REFIN (Pin 2) | 1.25 V buffered reference I/O | Provides 1.25 V output; grounding disables REFOUT buffer to allow external reference injection into REFOUT pin. |
| REFOUT (Pin 3) | 4.096 V internal reference output | Delivers low-drift, temperature-compensated reference; requires 10 µF ceramic decoupling for optimal noise performance. |
| VDD (Pin 4) | Analog and core digital supply | Accepts 4.75 V–5.25 V (5 V mode) or 3.13 V–3.47 V (3.3 V mode); bypass with 1 µF ceramic capacitor near pin. |
| AIN+, AIN– (Pins 6, 7) | Differential analog input terminals | Support ±4.096 V differential swing with 0 V to VDD common-mode range; tolerate input leakage ≤ ±1 µA. |
| CNV (Pin 9) | Convert initiation trigger | TTL-compatible input; falling edge initiates conversion and readout; timing-critical for jitter-sensitive sampling. |
| CMOS/LVDS (Pin 10) | I/O interface mode select | Ground = CMOS; tie to OVDD = LVDS; float = low-power LVDS - configures driver strength and termination behavior. |
| OVDD (Pin 12) | Digital I/O supply | 1.71 V–2.63 V range; powers SDO/SCK drivers; must match host interface voltage (e.g., 1.8 V FPGA I/O). |
| SCK+ (Pin 16) | Serial clock input (CMOS or LVDS) | In CMOS mode: single-ended clock; in LVDS mode: differential clock pair with SCK– (Pin 15); min 9.4 ns period supports 105 MHz SCK. |
| SDO+ (Pin 14) | Serial data output (CMOS or LVDS) | MSB-first output on SCK falling edge; in LVDS mode, used with SDO– (Pin 13); Hi-Z when CNV high (acquisition phase). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from –40°C to +125°C with controlled manufacturing flow and reliability reporting. |
| Dual-mode SPI-compatible interface | Hardware-selectable CMOS or LVDS I/O reduces EMI and improves noise immunity in electrically noisy vehicle environments. |
| Onboard 4.096 V reference with 20 ppm/°C max drift | Eliminates external reference component count and layout complexity while maintaining accuracy over full automotive temperature range. |
| One-cycle latency & 5 Msps throughput | Enables deterministic real-time control loops in motor drives and battery management without pipeline delay penalties. |
| Nap and sleep power modes | Reduces current draw to 3.5 mA (nap) or 0.5 µW (sleep) - critical for always-on automotive subsystems with strict quiescent power budgets. |
| Wide input common-mode range (0 V to VDD) | Allows direct interfacing with sensors and amplifiers without level-shifting circuitry, simplifying front-end design. |
Applications
| Automotive Battery Monitoring | Optical Network Transceiver Calibration |
|---|---|
|
Use Scenario: Real-time cell voltage monitoring in 48 V mild-hybrid battery packs under engine cranking and load dump conditions. IC Role / Device Role / Timing Role: High-speed, high-accuracy SAR ADC capturing differential voltage across sense resistors and cell taps with 5 Msps rate and 81 dB SNR. Use Value: Enables precise state-of-charge estimation and fault detection despite high common-mode transients, leveraging ±4.096 V differential input and –40°C to +125°C operation. |
Use Scenario: Digitizing laser bias current feedback in coherent optical modules for closed-loop power control. IC Role / Device Role / Timing Role: Precision ADC sampling analog monitor photodiode outputs at multi-MHz rates to maintain laser wavelength stability. Use Value: Delivers 16-bit resolution and 81.6 dB SNR at 2.2 MHz, supporting <0.01 dB gain error drift over temperature - critical for DWDM channel spacing compliance. |
| Industrial Motor Phase Current Sensing | High-Speed Data Acquisition Systems |
|
Use Scenario: Isolated current sensing in three-phase PMSM inverters for field-oriented control (FOC) in EV traction drives. IC Role / Device Role / Timing Role: Differential ADC converting isolated amplifier outputs with 100 MHz input bandwidth and 1.7 LSBRMS transition noise. Use Value: Achieves <1% torque ripple reduction via sub-ns aperture jitter (1 psRMS) and 5 Msps synchronized sampling across all phases. |
Use Scenario: Modular digitizer card for test equipment requiring flexible input ranges and low-latency streaming to FPGA-based processing. IC Role / Device Role / Timing Role: Core ADC with configurable CMOS/LVDS interface, onboard reference, and 5 Msps throughput for scalable multi-channel systems. Use Value: Reduces BOM count and PCB area by integrating reference and supporting both LVDS (low-noise) and CMOS (low-cost) host interfaces on same footprint. |
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, single-ended input only; no integrated reference; requires external 2.5 V reference; 1.8 V I/O only. | Lower speed and no differential input limits suitability for high-common-mode automotive or motor control use cases. | Select when cost sensitivity outweighs speed/differential requirements and external reference infrastructure already exists. |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, differential input; requires external 5 V reference; higher power (65 mW); no AEC-Q100 qualification. | Lacks automotive qualification and integrated reference - unsuitable for production automotive ECUs without additional validation. | Choose for lab-grade instrumentation needing 18-bit resolution where AEC-Q100 and reference integration are non-critical. |
Compared with ADS8860IRGET and AD7960BCPZ-RL7, the LTC2311HMSE-16#WTRPBF uniquely combines AEC-Q100 qualification, integrated 4.096 V reference, differential input, and 5 Msps throughput in a single 4 mm × 5 mm MSOP package - reducing system-level validation effort and component count for automotive and industrial high-speed sensing.
Availability
LTC2311HMSE-16#WTRPBF is available at Aetrix Electronics and suitable for automotive battery management, optical transceiver calibration, and industrial motor control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LTC2311HMSE-16#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.
The LTC2311-16 product line delivers high-speed, high-accuracy SAR ADCs optimized for demanding applications including automotive data acquisition, optical networking, and precision instrumentation - emphasizing low noise, low power, and robust operation across extreme temperatures.
FAQ
What is the operating temperature range of the LTC2311HMSE-16#WTRPBF?
The LTC2311HMSE-16#WTRPBF is rated for –40°C to +125°C and is AEC-Q100 Grade 1 qualified. This specification is guaranteed across the full range, with electrical parameters such as INL (±8 LSB), SNR (≥76 dB), and reference drift (≤20 ppm/°C) validated per automotive reliability standards. The device uses enhanced process controls and extended burn-in to ensure stability in under-hood environments.
Does the LTC2311HMSE-16#WTRPBF require an external reference?
No, the LTC2311HMSE-16#WTRPBF includes an integrated 4.096 V temperature-compensated reference with 20 ppm/°C maximum drift and 0.34% initial accuracy. An external 1.25 V buffered reference is also accessible via REFIN pin, and grounding REFIN disables the internal REFOUT buffer to allow external reference injection - but external reference is optional, not required, for standard operation of the LTC2311HMSE-16#WTRPBF.
How does the CMOS/LVDS pin (Pin 10) configure interface mode on the LTC2311HMSE-16#WTRPBF?
Pin 10 (CMOS/LVDS) selects the digital interface mode: grounded → CMOS mode (single-ended SDO/SCK); tied to OVDD → LVDS mode (differential SDO+/SDO– and SCK+/SCK–); left floating → low-power LVDS mode. Each mode defines driver strength, termination, and current consumption - e.g., LVDS mode draws 2.7–4.5 mA OVDD current at 5 Msps, while CMOS draws 1.1–1.75 mA. This configuration is static and must be set before initialization of the LTC2311HMSE-16#WTRPBF.
What is the significance of the #W suffix in LTC2311HMSE-16#WTRPBF?
The #W suffix indicates automotive-grade qualification: controlled manufacturing flow, enhanced traceability, extended reliability testing (including AEC-Q100 stress tests), and availability of Automotive Reliability Reports. The #WTRPBF variant specifically denotes tape-and-reel packaging with wettable flank leads for automated optical inspection (AOI) - a requirement for many Tier 1 automotive assembly lines. This distinguishes the LTC2311HMSE-16#WTRPBF from commercial-grade variants like LTC2311HMSE-16#TRPBF.
Can the LTC2311HMSE-16#WTRPBF operate from a 3.3 V supply?
Yes, the LTC2311HMSE-16#WTRPBF supports dual supply operation: VDD = 3.13 V–3.47 V (3.3 V mode) or 4.75 V–5.25 V (5 V mode). At 3.3 V, it delivers 5 Msps throughput with 30 mW power dissipation (CMOS mode), 14 mW in nap mode, and 0.3 µW in sleep mode. All specifications - including SNR (≥76 dB), INL (±8 LSB), and reference output (2.042–2.054 V) - are guaranteed across the full –40°C to +125°C range in 3.3 V operation.
LTC2311HMSE-16#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:
- 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#WTRPBF FAQ
1.How can I place an order for LTC2311HMSE-16#WTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-16#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-16#WTRPBF reliable?
The price and inventory of LTC2311HMSE-16#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-16#WTRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-16#WTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-16#WTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-16#WTRPBF?
LTC2311HMSE-16#WTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-16#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-16#WTRPBF?
For technical support, including LTC2311HMSE-16#WTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-16#WTRPBF requirements.
6.How does Aetrix verify that LTC2311HMSE-16#WTRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-16#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-16#WTRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-16#WTRPBF?
All LTC2311HMSE-16#WTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-16#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-16#WTRPBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-16#WTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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