My Inquiry
My Account
Analog Devices Inc. LTC2311CMSE-12#TRPBF
- Part No.:
- LTC2311CMSE-12#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311CMSE-12#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2311CMSE-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, and integrated 4.096 V temperature-compensated reference. It operates from a single 3.3 V or 5 V supply and delivers one-cycle latency in high-speed data acquisition systems requiring wide dynamic range and high common-mode rejection.
For engineers reviewing the LTC2311CMSE-12#TRPBF datasheet, LTC2311CMSE-12#TRPBF pinout, LTC2311CMSE-12#TRPBF application, or LTC2311CMSE-12#TRPBF equivalent, key selection considerations include its 8 VP-P differential input range, CMOS/LVDS SPI-compatible serial interface, guaranteed no-missing-codes performance across –40°C to 125°C (C-grade: 0°C to 70°C), and low-power nap/sleep modes supporting industrial and automotive signal conditioning.
Technical Context
The LTC2311CMSE-12#TRPBF implements a 13-bit SAR architecture with two-phase operation: acquisition (sample capacitor connected to AIN+/AIN–) followed by conversion using a binary-weighted CDAC and differential comparator referenced to REFOUT. Its transfer function outputs 13-bit two's complement codes spanning ±REFOUT for fully differential inputs, delivering true 12-bit resolution with sign bit.
It supports three I/O modes via the CMOS/LVDS pin: CMOS (single-ended SDO+/SCK+), LVDS (differential SDO±/SCK± with 100 Ω termination), and low-power LVDS. Internal reference buffer provides 4.096 V (or 2.048 V) with ≤20 ppm/°C drift, while REFIN accepts 1.25 V external reference or disables REFOUT buffer when grounded.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit + sign (13-bit two's complement output); enables bipolar measurement with full-scale digitization of ±4.096 V differential input. |
| Sampling Rate | 5 Msps maximum; supports real-time capture of signals up to 2.2 MHz Nyquist bandwidth with one-cycle latency. |
| INL | ±0.25 LSB typical, ±1 LSB guaranteed; ensures monotonicity and accurate end-point linearity for precision instrumentation. |
| SNR | 73.3 dB typical at fIN = 2.2 MHz; corresponds to ~12.1 effective bits under full-scale sine-wave conditions. |
| Power Dissipation | 50 mW typical at VDD = 5 V, 5 Msps; reduces to 12 mW in nap mode and 0.5 µW in sleep mode for duty-cycled systems. |
| Input Range | 8 VP-P differential (±REFOUT), with 0 V to VDD common-mode range; allows direct interfacing to op-amp drivers without level-shifting. |
| Reference | Internal 4.096 V (or 2.048 V) buffered reference, ≤20 ppm/°C drift; eliminates need for external reference in most applications. |
Pinout & Package
Package: 16-lead plastic MSOP (4 mm × 5 mm), exposed pad (Pin 17) soldered to 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) | 1.25 V reference buffer I/O | Outputs 1.25 V internally; grounding disables REFOUT buffer to enable external reference injection into REFOUT. |
| REFOUT (Pin 3) | 4.096 V reference output | Provides temperature-compensated 4.096 V reference; requires 10 µF ceramic decoupling for stability. |
| VDD (Pin 4) | Analog power supply | Accepts 3.13 V to 5.25 V; powers core ADC, reference, and internal LDO; bypassed with 1 µF ceramic. |
| AIN+, AIN– (Pins 6, 7) | Differential analog inputs | Support ±REFOUT full-scale swing; input capacitance 10 pF, on-resistance ~15 Ω; tolerate 0 V to VDD common-mode. |
| CNV (Pin 9) | Convert trigger input | TTL-compatible; rising edge initiates sampling, falling edge starts conversion and serial readout; one-cycle latency. |
| CMOS/LVDS (Pin 10) | I/O interface mode select | GND = CMOS; OVDD = LVDS; floating = low-power LVDS; configures SDO/SCK signaling and current drive. |
| OVDD (Pin 12) | Digital I/O supply | 1.71 V to 2.5 V; sets logic levels for SDO/SCK; bypassed with 1 µF ceramic; independent of VDD. |
| SDO+ (Pin 14) | Serial data output (CMOS) | MSB-first output on SCK falling edge; active only in CMOS mode; logic level referenced to OVDD. |
| SCK+ (Pin 16) | Serial clock input (CMOS) | Single-ended clock input; falling edge clocks data out; supports up to 105 MHz for 5 Msps operation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide input common-mode range | 0 V to VDD enables direct connection to rail-to-rail op-amps without level-shifting circuitry. |
| Dual reference options | Internal 4.096 V (or 2.048 V) reference with ≤20 ppm/°C drift, plus 1.25 V buffered REFIN for external reference flexibility. |
| Configurable digital interface | CMOS, LVDS, or low-power LVDS I/O modes selectable via single pin-supports FPGA/CPLD integration with minimal board space. |
| Ultra-low power states | Nap mode (2.4 mA) and sleep mode (0.1 µA at 3.3 V) reduce system power during idle periods without losing configuration. |
| No missing codes guarantee | Guaranteed 12-bit monotonicity across full temperature range simplifies calibration and ensures reliable zero-crossing detection. |
Applications
| High-Speed Data Acquisition | Communications Baseband |
|---|---|
Use Scenario: Real-time digitization of sensor outputs in automated test equipment with >5 Msps sampling and sub-LSB linearity. IC Role / Device Role / Timing Role: Primary SAR ADC capturing differential analog waveforms with 13-bit two's complement output and one-cycle latency. Use Value: Enables 16k-point FFT analysis at 5 Msps with 73.3 dB SNR, supporting precise spectral characterization of transducer signals. | Use Scenario: Digitizing IF signals in software-defined radio receivers where dynamic range and harmonic distortion matter. IC Role / Device Role / Timing Role: High-fidelity baseband ADC interfaced via LVDS to FPGA for parallel processing of multi-carrier signals. Use Value: –85 dB THD and 91 dB SFDR at 2.2 MHz allow clean demodulation of adjacent channels without analog filtering overhead. |
| Optical Networking Monitoring | Automotive Sensor Interface |
Use Scenario: Monitoring laser diode bias current and photodiode feedback in fiber-optic transceivers with tight thermal constraints. IC Role / Device Role / Timing Role: Precision analog front-end ADC with internal 4.096 V reference and low-drift performance over temperature. Use Value: 20 ppm/°C reference drift and guaranteed operation to 125°C eliminate need for external calibration in compact optical modules. | Use Scenario: Converting differential outputs from MEMS accelerometers or pressure sensors in engine control units. IC Role / Device Role / Timing Role: Robust SAR ADC accepting pseudo-differential unipolar/bipolar inputs without configuration or external components. Use Value: 8 VP-P input range and 0 V to VDD common-mode support direct connection to sensor signal conditioners, reducing BOM count. |
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 |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1 Msps, SPI-only CMOS interface, no internal reference, 1.8 V supply only | Higher resolution but lower speed; requires external reference and level-shifting for 3.3/5 V systems | Select when resolution >12 bits is critical and 1 Msps suffices; avoid if LVDS interface or internal reference needed. |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, LVDS-only interface, external reference required, 5 V analog/2.5 V digital supply | Higher ENOB but demands strict layout for LVDS; no nap/sleep modes; higher power (45 mW at 5 Msps) | Select for ultra-high fidelity imaging or metrology; avoid if low-power states or internal reference are required. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2311CMSE-12#TRPBF uniquely balances 12-bit precision, 5 Msps speed, integrated reference, dual I/O mode, and ultra-low sleep current-making it optimal for space-constrained, thermally demanding, or battery-assisted high-speed acquisition nodes.
Availability
LTC2311CMSE-12#TRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking monitoring, and automotive sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2311CMSE-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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2311-12 product line was designed by Linear Technology (acquired by ADI in 2017) to deliver high-speed, low-noise SAR ADC performance in compact packages for applications demanding precision, low power, and robust operation from –40°C to 125°C.
FAQ
What is the operating temperature range for the LTC2311CMSE-12#TRPBF?
The LTC2311CMSE-12#TRPBF is rated for 0°C to 70°C (Commercial grade). This is confirmed by the "C" suffix in the part number and the package marking table in the datasheet. It is distinct from the I-grade (–40°C to 85°C) and H-grade (–40°C to 125°C) variants, which carry "I" or "H" prefixes. The device meets all electrical specifications within this range without derating.
Does the LTC2311CMSE-12#TRPBF require an external reference?
No, the LTC2311CMSE-12#TRPBF does not require an external reference. It integrates a low-drift (≤20 ppm/°C) 4.096 V (or 2.048 V) temperature-compensated reference buffer on-chip. The REFIN pin provides a 1.25 V buffered output and can be grounded to disable the internal REFOUT buffer, enabling use of an external reference-but this is optional, not mandatory.
Can the LTC2311CMSE-12#TRPBF operate with a 3.3 V supply?
Yes, the LTC2311CMSE-12#TRPBF operates from a single 3.3 V supply (VDD = 3.13 V to 3.47 V). At 3.3 V, it achieves 5 Msps sampling, 73 dB SNR, and dissipates 27 mW in active mode. OVDD must be set between 1.71 V and 2.5 V independently, supporting 1.8 V or 2.5 V logic interfaces regardless of VDD.
How does the CMOS/LVDS pin configure the serial interface on the LTC2311CMSE-12#TRPBF?
The CMOS/LVDS pin (Pin 10) selects the digital interface mode: grounded for CMOS (single-ended SDO+/SCK+), tied to OVDD for LVDS (differential SDO±/SCK± with 100 Ω termination), or left floating for low-power LVDS. This pin directly controls driver strength and termination behavior-no register writes or configuration sequences are needed.
What power-saving modes does the LTC2311CMSE-12#TRPBF support?
The LTC2311CMSE-12#TRPBF supports Nap Mode (2.4 mA typical at 3.3 V) and Sleep Mode (0.1 µA typical at 3.3 V), both entered via CNV timing control. In Nap Mode, the reference remains active for fast wake-up; in Sleep Mode, reference and digital circuits are powered down. REFOUT wake-up time is 10 ms with 10 µF capacitor.
LTC2311CMSE-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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2311CMSE-12#TRPBF FAQ
1.How can I place an order for LTC2311CMSE-12#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311CMSE-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 LTC2311CMSE-12#TRPBF reliable?
The price and inventory of LTC2311CMSE-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 LTC2311CMSE-12#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311CMSE-12#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311CMSE-12#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311CMSE-12#TRPBF?
LTC2311CMSE-12#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311CMSE-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 LTC2311CMSE-12#TRPBF?
For technical support, including LTC2311CMSE-12#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311CMSE-12#TRPBF requirements.
6.How does Aetrix verify that LTC2311CMSE-12#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311CMSE-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 LTC2311CMSE-12#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311CMSE-12#TRPBF?
All LTC2311CMSE-12#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311CMSE-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 LTC2311CMSE-12#TRPBF part is unused and in its original packaging.
Return procedure for LTC2311CMSE-12#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2311CMSE-12#TRPBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
