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Analog Devices Inc. LTC2311HMSE-12#TRPBF
- Part No.:
- LTC2311HMSE-12#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311HMSE-12#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,587
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Product details
Overview
LTC2311HMSE-12#TRPBF from Analog Devices (formerly Linear Technology) 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 input, and integrated 4.096 V temperature-compensated reference. It operates from a single 3.3 V or 5 V supply and supports CMOS or LVDS serial interface - ideal for high-speed data acquisition in harsh-temperature industrial and automotive systems.
For engineers reviewing the LTC2311HMSE-12#TRPBF datasheet, LTC2311HMSE-12#TRPBF pinout, LTC2311HMSE-12#TRPBF application, or LTC2311HMSE-12#TRPBF equivalent, key selection criteria include guaranteed –40°C to 125°C operation, 8 VP-P differential input range with wide common-mode support, one-cycle latency, and low-power nap/sleep modes enabling embedded real-time signal digitization without external reference or level-shifting.
Technical Context
The LTC2311HMSE-12#TRPBF implements a 13-bit SAR architecture delivering 12-bit resolution with sign bit, achieving no missing codes across its full operating range. Its differential sampling switch network features 15 Ω on-resistance and 10 pF input capacitance, enabling robust acquisition of bipolar, pseudo-differential, or fully differential signals without configuration.
It integrates dual reference paths: an internal 4.096 V (±20 ppm/°C max) buffered output and a 1.25 V buffered REFIN pin supporting external reference injection. The configurable CMOS/LVDS I/O mode (selected via Pin 10) allows direct interfacing to FPGAs or DSPs at 1.8 V–2.5 V OVDD, with LVDS mode requiring 100 Ω differential termination and delivering 105 MHz SCK compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit + sign (13-bit two's complement output), enabling bipolar signal digitization with overrange detection |
| Sampling Rate | 5 Msps maximum, with one-cycle latency - supports real-time closed-loop control and FFT-based spectral analysis |
| INL | ±0.25 LSB typical, ±1 LSB guaranteed - ensures accurate amplitude fidelity in precision measurement systems |
| SNR | 73.3 dB typical at fIN = 2.2 MHz - delivers >12 ENOB for demanding communications and imaging front-ends |
| Input Range | ±REFOUT differential (±4.096 V), 8 VP-P, with 0 V to VDD common-mode range - simplifies sensor interface design |
| Reference | Internal 4.096 V ±20 ppm/°C max drift reference; also accepts 1.25 V external reference via REFIN pin |
| Power Dissipation | 50 mW at 5 V / 5 Msps; drops to 0.5 µW in sleep mode - enables battery-aware portable instrumentation |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) MSOP with exposed thermal pad (Pin 17 = GND). RoHS-compliant, tape-and-reel packaged for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11, 17) | Ground reference and thermal path | Multiple ground pins and soldered exposed pad ensure low-noise analog/thermal performance and EMI resilience |
| REFIN (Pin 2) | 1.25 V reference buffer I/O | Provides buffered 1.25 V output; grounding disables REFOUT buffer to enable external reference drive |
| REFOUT (Pin 3) | 4.096 V reference output | Low-drift internal reference; decoupled with 10 µF ceramic capacitor - critical for SNR stability |
| VDD (Pin 4) | Analog/digital core supply | Accepts 3.3 V or 5 V; bypassed with 1 µF ceramic capacitor - powers SAR core, reference, and timing logic |
| AIN+, AIN– (Pins 6, 7) | Differential analog input | Supports ±4.096 V differential swing with 0–VDD common-mode; no configuration needed for unipolar/bipolar modes |
| CNV (Pin 9) | Convert initiation trigger | TTL-compatible input; falling edge starts conversion - enables precise timing control in synchronous systems |
| CMOS/LVDS (Pin 10) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS - configures physical layer without re-spinning PCB |
| OVDD (Pin 12) | Digital I/O supply | 1.71 V–2.5 V range; sets logic levels for SDO/SCK - enables interoperability with 1.8 V/2.5 V FPGA I/O banks |
| SDO+ (Pin 14) | Serial data output (CMOS) | MSB-first SPI-compatible output; active only in CMOS mode - connects directly to host processor GPIO or SPI peripheral |
| SCK+ (Pin 16) | Serial clock input (CMOS) | Falling-edge triggered; supports up to 105 MHz - enables high-throughput streaming without FIFO buffering |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed –40°C to 125°C operation | Validated performance across full H-grade temperature range - suitable for under-hood automotive and industrial motor control |
| Dual reference flexibility | Internal 4.096 V reference or external 1.25 V reference via REFIN - eliminates need for external voltage references in space-constrained designs |
| Configurable CMOS/LVDS interface | Single-pin mode selection (Pin 10) enables hardware-compatible migration between low-power CMOS and noise-immune LVDS links |
| One-cycle latency | Conversion result available on next SCK cycle - enables deterministic timing for servo loop closure and real-time waveform generation |
| Low-power nap/sleep modes | Nap mode draws 2.4 mA; sleep mode draws 0.1 µA at 3.3 V - extends battery life in portable test equipment and remote sensors |
Applications
| High-Speed Data Acquisition Systems | Optical Networking |
|---|---|
Use Scenario: Digitizing fast transient waveforms from oscilloscope front-ends or LIDAR return pulses with minimal latency. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 5 Msps samples with 161.9 ns conversion time and 38.1 ns acquisition window. Use Value: 73.3 dB SNR and 91 dB SFDR preserve signal integrity for post-processing FFTs and envelope detection without oversampling. | Use Scenario: Monitoring laser bias current and photodiode receiver output in 10G/25G optical transceivers. IC Role / Device Role / Timing Role: High-common-mode-rejection ADC sampling differential current-sense signals amid noisy power rails. Use Value: 85 dB CMRR and ±4.096 V differential range reject supply ripple and enable accurate optical power calibration. |
| Automotive Powertrain Sensing | Multiphase Motor Control |
Use Scenario: Measuring cylinder pressure, knock sensor outputs, and exhaust gas oxygen signals in engine control units. IC Role / Device Role / Timing Role: Rugged ADC operating at –40°C to 125°C with internal reference - eliminates external reference drift errors. Use Value: Guaranteed ±1 LSB INL and no missing codes ensure compliance with ASIL-B functional safety requirements for torque estimation. | Use Scenario: Sampling phase currents in three-phase inverters for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Simultaneous sampling-capable ADC (via external sync) delivering synchronized current feedback to MCU. Use Value: 5 Msps throughput and one-cycle latency allow sub-microsecond current loop update rates for high-efficiency PMSM drives. |
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, SPI-only CMOS interface, no internal reference, 1.8 V OVDD only | Higher resolution but lower speed; requires external reference and level-shifting for 3.3 V/5 V systems | Select when ENOB > 14 is required and 1 Msps suffices; avoid if LVDS noise immunity or internal reference is needed. |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, LVDS-only interface, external reference required, 2.5 V OVDD only | Higher resolution and same speed, but lacks CMOS mode and internal reference - increases BOM count and layout complexity | Select for metrology-grade accuracy where external reference stability is tightly controlled; not drop-in for LTC2311HMSE-12#TRPBF footprint. |
Compared with ADS8860IRGET and AD7960BCPZ-RL7, the LTC2311HMSE-12#TRPBF uniquely balances speed, integrated reference, dual I/O mode, and extended temperature grade - reducing system-level design effort for ruggedized 12-bit data acquisition.
Availability
LTC2311HMSE-12#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking modules, automotive powertrain sensing, and multiphase motor control requiring stable component supply across extended temperature ranges.
Supply support for LTC2311HMSE-12#TRPBF 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 LTC2311HMSE-12#TRPBF belongs to the Linear Technology SAR ADC product line, designed specifically for high-speed, low-latency, wide-dynamic-range digitization in thermally demanding environments - emphasizing integration, reliability, and ease of use.
FAQ
What is the operating temperature range of the LTC2311HMSE-12#TRPBF?
The LTC2311HMSE-12#TRPBF is rated for guaranteed operation from –40°C to +125°C (H-grade), validated per Absolute Maximum Ratings and Electrical Characteristics tables in the official datasheet. This makes it suitable for under-hood automotive, industrial motor drives, and outdoor infrastructure applications where ambient temperatures exceed standard commercial or industrial grades.
Does the LTC2311HMSE-12#TRPBF require an external reference?
No, the LTC2311HMSE-12#TRPBF includes an onboard low-drift 4.096 V temperature-compensated reference (max 20 ppm/°C) and a 1.25 V buffered REFIN pin. An external reference is optional - connecting REFIN to GND disables the internal REFOUT buffer, allowing direct drive of REFOUT with an external source. The LTC2311HMSE-12#TRPBF functions fully with only VDD, OVDD, and analog inputs powered.
How does the CMOS/LVDS pin (Pin 10) configure the interface mode on the LTC2311HMSE-12#TRPBF?
On the LTC2311HMSE-12#TRPBF, Pin 10 (CMOS/LVDS) selects the serial interface physical layer: grounding enables CMOS mode (single-ended SDO+/SCK+); tying to OVDD enables full LVDS mode (differential SDO+/SDO–, SCK+/SCK–); leaving it floating enables low-power LVDS mode. All modes use the same SPI-compatible timing and MSB-first protocol, ensuring software compatibility across configurations.
What is the power consumption of the LTC2311HMSE-12#TRPBF at 5 Msps with a 5 V supply?
At 5 V supply and 5 Msps sampling rate, the LTC2311HMSE-12#TRPBF dissipates 50 mW typical (65 mW max), comprising ~12 mA IVDD and ~3.5 mA IOVDD in CMOS mode. In LVDS mode, power rises to 58 mW typical due to higher driver current. Nap and sleep modes reduce total current to 12–18 mA and 0.5–30 µW respectively - enabling dynamic power scaling in burst-mode acquisition systems.
Can the LTC2311HMSE-12#TRPBF digitize single-ended signals?
Yes, the LTC2311HMSE-12#TRPBF supports pseudo-differential unipolar and bipolar configurations without hardware changes. For single-ended signals, connect the reference (e.g., system ground or mid-rail) to AIN– and the signal to AIN+, leveraging the device's 0 V to VDD common-mode range and 85 dB CMRR. Output remains 13-bit two's complement, with full-scale span adjusted to ±REFOUT/2 (unipolar) or ±REFOUT/2 centered at zero (bipolar).
LTC2311HMSE-12#TRPBF 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:
- 12
- Sampling Rate (Per Second):
- 5M
- Number of Inputs:
- 1
- Input Type:
- Differential, Pseudo-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, 5V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2311HMSE-12#TRPBF FAQ
1.How can I place an order for LTC2311HMSE-12#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311HMSE-12#TRPBF 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#TRPBF reliable?
The price and inventory of LTC2311HMSE-12#TRPBF 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#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311HMSE-12#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311HMSE-12#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311HMSE-12#TRPBF?
LTC2311HMSE-12#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311HMSE-12#TRPBF 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#TRPBF?
For technical support, including LTC2311HMSE-12#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311HMSE-12#TRPBF requirements.
6.How does Aetrix verify that LTC2311HMSE-12#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311HMSE-12#TRPBF 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#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311HMSE-12#TRPBF?
All LTC2311HMSE-12#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311HMSE-12#TRPBF, 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#TRPBF part is unused and in its original packaging.
Return procedure for LTC2311HMSE-12#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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