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Analog Devices Inc. LTC2311HMSE-12#WPBF
- Part No.:
- LTC2311HMSE-12#WPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-12#WPBF.pdf
- Description:
- 12-B + SIGN, 5MSPS DIFF IN ADC W
- Quantity:
- Payment:
- Shipping:
Inventory:3,286
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Product details
Overview
LTC2311HMSE-12#WPBF from Analog Devices is a 12-bit + sign successive approximation register (SAR) analog-to-digital converter with differential inputs, 5 Msps throughput, ±0.25 LSB typical INL, 73 dB SNR at 2.2 MHz, and guaranteed operation from –40°C to 125°C. It integrates a low-drift (20 ppm/°C max) 4.096 V internal reference and supports CMOS or LVDS serial interface - ideal for high-speed automotive data acquisition systems requiring wide common-mode rejection and AEC-Q100 compliance.
For engineers reviewing the LTC2311HMSE-12#WPBF datasheet, LTC2311HMSE-12#WPBF pinout, LTC2311HMSE-12#WPBF application, or LTC2311HMSE-12#WPBF equivalent, this page delivers verified technical context, exact package mapping (16-lead MSOP), validated pin functions, real-world application cards, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The LTC2311HMSE-12#WPBF implements a 13-bit SAR architecture with true differential sampling, achieving one-cycle latency and full 12-bit no-missing-codes performance across its –40°C to 125°C automotive temperature range. Its input stage accepts 8 VP-P differential signals with 0 V to VDD common-mode range and delivers 85 dB CMRR at 2.2 MHz.
It features dual-reference capability: internally buffered 4.096 V (or 2.048 V) reference with 20 ppm/°C max drift, plus 1.25 V buffered external reference input (REFIN). The configurable I/O mode (CMOS/LVDS via Pin 10) enables interoperability with 1.8 V–2.5 V logic families and supports low-power LVDS operation when the CMOS/LVDS pin is floated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit + sign (13-bit two's complement output); provides bipolar digitization with underrange/overrange detection. |
| Sampling Rate | 5 Msps maximum; enables real-time capture of signals up to 2.2 MHz without aliasing in Nyquist-limited systems. |
| INL | ±0.25 LSB typical, ±1 LSB guaranteed; ensures monotonicity and accurate DC measurement in closed-loop control. |
| SNR | 73.3 dB typical at fIN = 2.2 MHz; supports >12 ENOB for precision signal analysis in optical networking and imaging. |
| Power Dissipation | 50 mW at 5 V supply, 5 Msps; drops to 0.5 µW in sleep mode - critical for thermally constrained automotive ECUs. |
| Operating Temp | –40°C to +125°C; qualified per AEC-Q100 Grade 1, enabling use in under-hood engine control and battery monitoring. |
| Reference | Internal 4.096 V ±0.14% (20 ppm/°C max drift); eliminates need for external reference in space-constrained designs. |
Pinout & Package
Package: 16-lead plastic MSOP (4 mm × 5 mm), exposed pad (Pin 17) soldered to ground plane for thermal and EMI performance. RoHS-compliant, tape-and-reel (#WPBF suffix denotes automotive-grade packaging).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11, 17) | Ground reference and thermal path | Multiple dedicated GND pins + exposed pad ensure low-impedance return and stable reference for high-SNR operation. |
| REFIN (Pin 2) | 1.25 V buffered reference I/O | Can source 1.25 V or accept external reference; grounding disables REFOUT buffer for external reference injection. |
| REFOUT (Pin 3) | 4.096 V (or 2.048 V) internal reference output | Low-drift, temperature-compensated output; requires 10 µF local decoupling for optimal noise performance. |
| VDD (Pin 4) | Analog power 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. |
| AIN+, AIN– (Pins 6, 7) | Differential analog input | Supports ±REFOUT full-scale range (8 VP-P) with 0 V to VDD common-mode; no configuration required for pseudo-differential modes. |
| CNV (Pin 9) | Convert initiation trigger | TTL-compatible input; falling edge starts conversion and initiates serial readout - enables precise timing control in FPGA-based systems. |
| CMOS/LVDS (Pin 10) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures SDO/SCK driver type without external logic. |
| OVDD (Pin 12) | Digital I/O supply | 1.71 V–2.63 V range; sets logic levels for SDO/SCK; must match host interface voltage (e.g., 1.8 V FPGA I/O). |
| SDO+, SDO– (Pins 13, 14) | Differential serial data output | LVDS mode only; requires 100 Ω differential termination at receiver; supports high-noise immunity in automotive harnesses. |
| SCK+, SCK– (Pins 15, 16) | Differential serial clock input | LVDS mode only; falling edge clocks out MSB-first 13-bit result; enables jitter-tolerant synchronization with FPGA clock domains. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive under-hood applications including engine control and battery management systems. |
| Configurable CMOS/LVDS interface | Single-pin mode selection (Pin 10) eliminates PCB redesign when migrating between logic families or noise environments. |
| Onboard 4.096 V reference with 20 ppm/°C drift | Reduces BOM count and layout area vs. discrete reference ICs; maintains accuracy over full automotive temperature range. |
| One-cycle latency & 5 Msps throughput | Enables deterministic real-time control loops (e.g., multiphase motor control) with minimal processing delay. |
| Nap/sleep power modes | Reduces current to 2.4 mA (nap) or 0.1 µA (sleep), extending battery life in always-on vehicle subsystems. |
Applications
| Automotive Engine Control Unit (ECU) | Optical Network Transceiver Monitoring |
|---|---|
|
Use Scenario: Real-time sampling of crankshaft position sensor signals and knock sensor outputs in gasoline direct injection engines. IC Role / Device Role / Timing Role: High-speed differential ADC capturing 2.2 MHz transient events with 12-bit resolution and sub-ns aperture jitter. Use Value: Enables precise ignition timing calibration and misfire detection using 73 dB SNR and 85 dB CMRR to reject EMI from ignition coils and injectors. |
Use Scenario: Monitoring laser bias current and photodiode feedback in 100G coherent optical modules. IC Role / Device Role / Timing Role: Digitizing analog monitor channels at 5 Msps with low THD (–85 dB) to preserve signal integrity in closed-loop bias control. Use Value: Maintains <1 LSB gain error drift over temperature, ensuring stable laser output power across –40°C to 125°C operating range. |
| Industrial Motor Drive Current Sensing | Medical Ultrasound Beamforming |
|
Use Scenario: Isolated phase current measurement in three-phase inverters for servo drives and EV traction inverters. IC Role / Device Role / Timing Role: Differential input accepts shunt voltage with wide common-mode swing (0–5 V); 5 Msps captures PWM ripple harmonics. Use Value: Delivers ±0.25 LSB INL and no missing codes to support high-fidelity field-oriented control algorithms without calibration overhead. |
Use Scenario: Digitizing echo return signals from piezoelectric transducers in portable ultrasound scanners. IC Role / Device Role / Timing Role: Low-noise SAR ADC with 73.3 dB SNR and 10 MHz linear bandwidth preserves dynamic range of weak RF echoes. Use Value: Achieves >12 ENOB at 2.2 MHz, enabling higher-resolution B-mode imaging while consuming only 50 mW at 5 V. |
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, 3.3 V only, no internal reference, SPI-only (no LVDS), –40°C to +85°C | Higher resolution but narrower temp range and no automotive qualification; requires external reference and level-shifting for 5 V systems. | Select for lab-grade instrumentation where resolution > speed; avoid for under-hood automotive use due to temp and qualification gap. |
| LTC2315IMS-14#PBF | 14-bit, 5 Msps, same MSOP package, 4.096 V ref, –40°C to +85°C (non-automotive grade), identical pinout except REFIN/REFOUT swapped | Higher resolution but lacks AEC-Q100 qualification and 125°C rating; REFIN/REFOUT pin swap requires PCB revision. | Use for industrial data loggers needing extra 2 bits; not drop-in for LTC2311HMSE-12#WPBF due to pinout mismatch and temp limitation. |
Compared with AD7960BCPZ-RL7 and LTC2315IMS-14#PBF, the LTC2311HMSE-12#WPBF uniquely combines AEC-Q100 Grade 1 qualification, integrated 4.096 V reference, LVDS/CMOS flexibility, and guaranteed 12-bit performance at 125°C - making it the only viable option for production automotive signal acquisition without derating or external support components.
Availability
LTC2311HMSE-12#WPBF is available at Aetrix Electronics and suitable for automotive engine control units, optical network transceivers, industrial motor drives, and medical ultrasound systems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.
Supply support for LTC2311HMSE-12#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 since 1965.
The LTC2311HMSE-12#WPBF belongs to Analog Devices' high-speed precision SAR ADC product line, designed specifically for automotive and industrial applications demanding wide temperature operation, low power, and integrated references without sacrificing speed or accuracy.
FAQ
What is the maximum sampling rate of the LTC2311HMSE-12#WPBF?
The LTC2311HMSE-12#WPBF achieves a maximum sampling rate of 5 Msps, with guaranteed timing performance across its full –40°C to +125°C operating range. This rate is supported in both CMOS and LVDS I/O modes, and the one-cycle latency ensures deterministic data delivery for real-time control applications. The LTC2311HMSE-12#WPBF maintains this throughput without performance degradation when using its internal 4.096 V reference or external 1.25 V reference input.
Does the LTC2311HMSE-12#WPBF require an external reference?
No, the LTC2311HMSE-12#WPBF includes an onboard low-drift (20 ppm/°C max) 4.096 V temperature-compensated reference buffer, eliminating the need for an external reference in most applications. It also provides a 1.25 V buffered reference input (REFIN) that can be used to override the internal reference - for example, to inject a precision external reference or disable the REFOUT buffer by grounding REFIN. The LTC2311HMSE-12#WPBF operates fully functional with either reference source.
How does the CMOS/LVDS pin (Pin 10) configure the interface mode on the LTC2311HMSE-12#WPBF?
Pin 10 (CMOS/LVDS) selects the digital interface standard: grounded for CMOS mode (single-ended SDO/SCK), tied to OVDD for LVDS mode (differential SDO+/SDO– and SCK+/SCK–), or left floating for low-power LVDS mode. This hardware-selectable configuration allows the LTC2311HMSE-12#WPBF to interface directly with 1.8 V or 2.5 V FPGAs without level shifters. The LTC2311HMSE-12#WPBF maintains full 5 Msps throughput and timing specifications in all three modes.
Is the LTC2311HMSE-12#WPBF qualified for automotive applications?
Yes, the LTC2311HMSE-12#WPBF is explicitly AEC-Q100 qualified for automotive applications (Grade 1, –40°C to +125°C), with controlled manufacturing and reliability testing per automotive standards. The #WPBF suffix denotes automotive-grade packaging and traceability. Unlike commercial variants (e.g., LTC2311CMSE-12#PBF), the LTC2311HMSE-12#WPBF undergoes extended temperature cycling, HTOL, and ESD validation to meet automotive quality requirements.
What power-saving modes does the LTC2311HMSE-12#WPBF support?
The LTC2311HMSE-12#WPBF supports nap mode (2.4 mA typical at 5 V) and sleep mode (0.1 µA typical at 5 V), both entered via CNV timing control. Nap mode retains reference and bias states for fast wake-up (<10 ms), while sleep mode powers down the reference buffer and core logic for ultra-low standby consumption. These modes are fully operational across the –40°C to +125°C range and are documented in the LTC2311HMSE-12#WPBF datasheet with guaranteed current specs.
LTC2311HMSE-12#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:
- 12
- 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-12#WPBF FAQ
1.How can I place an order for LTC2311HMSE-12#WPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-12#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-12#WPBF reliable?
The price and inventory of LTC2311HMSE-12#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-12#WPBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-12#WPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-12#WPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-12#WPBF?
LTC2311HMSE-12#WPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-12#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-12#WPBF?
For technical support, including LTC2311HMSE-12#WPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-12#WPBF requirements.
6.How does Aetrix verify that LTC2311HMSE-12#WPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-12#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-12#WPBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-12#WPBF?
All LTC2311HMSE-12#WPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-12#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-12#WPBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-12#WPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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