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Analog Devices Inc. LTC2311IMSE-16#WTRPBF
- Part No.:
- LTC2311IMSE-16#WTRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC2311IMSE-16#WTRPBF.pdf
- Description:
- 16-B, 5MSPS DIFF IN ADC W/ WIDE
- Quantity:
- Payment:
- Shipping:
Inventory:1,570
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Product details
Overview
LTC2311IMSE-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 integrated 4.096 V temperature-compensated reference - designed for high-speed data acquisition in automotive-grade industrial systems operating from –40°C to +85°C.
For engineers reviewing the LTC2311IMSE-16#WTRPBF datasheet, LTC2311IMSE-16#WTRPBF pinout, LTC2311IMSE-16#WTRPBF application, or LTC2311IMSE-16#WTRPBF equivalent, key selection criteria include guaranteed no-missing-codes performance, CMOS/LVDS SPI-compatible serial interface, 1-cycle latency, wide input common mode range (0 V to VDD), and AEC-Q100 qualified operation.
Technical Context
The LTC2311IMSE-16#WTRPBF implements a fully differential SAR architecture with internal sample-and-hold, supporting true bipolar and pseudo-differential unipolar/bipolar input configurations without external configuration. Its 100 MHz –3 dB input bandwidth and 1 psRMS aperture jitter enable high-fidelity digitization of fast transient signals.
It integrates dual reference paths: a low-drift (≤20 ppm/°C) internal 4.096 V buffer (REFOUT) and a buffered 1.25 V external reference input (REFIN), allowing flexible reference sourcing. The CMOS/LVDS I/O mode select pin enables hardware-configurable digital interface operation with 1.8 V–2.5 V OVDD compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels for high dynamic range measurement |
| Sampling Rate | 5 Msps - supports real-time capture of signals up to ~2.2 MHz Nyquist bandwidth |
| INL (typ) | ±3 LSB - ensures accurate end-point linearity critical for precision instrumentation |
| SNR (typ) | 81.6 dB at fIN = 2.2 MHz - enables >13-bit effective resolution in high-frequency applications |
| Reference | Internal 4.096 V ±0.3% buffered reference - eliminates need for external precision reference in most designs |
| Power (5V) | 50 mW at 5 Msps - achieves high speed with low thermal load in space-constrained systems |
| Temperature Range | –40°C to +85°C - meets extended industrial and automotive-grade reliability requirements |
Pinout & Package
Package: 16-lead (4 mm × 5 mm) plastic MSOP with exposed pad (Pin 17), RoHS-compliant, tape-and-reel packaging (#WTRPBF suffix denotes automotive-grade moisture sensitivity level and controlled manufacturing).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 5, 8, 11, 17) | Ground reference | Multiple dedicated ground pins and exposed pad must be soldered to solid ground plane for optimal noise immunity and thermal dissipation |
| REFIN (Pin 2) | 1.25 V reference buffer I/O | Provides buffered 1.25 V output; grounding disables REFOUT buffer to allow external reference injection |
| REFOUT (Pin 3) | 4.096 V reference output | Low-drift internal reference output requiring 10 µF local decoupling; voltage accuracy defines LSB size (125 µV) |
| VDD (Pin 4) | Analog power supply | Single 3.3 V or 5 V supply powering ADC core and reference; bypassed with 1 µF ceramic capacitor |
| AIN+, AIN– (Pins 6, 7) | Differential analog inputs | Accept 8 VP-P differential signal with 0 V to VDD common mode range; no configuration required for unipolar/bipolar modes |
| CNV (Pin 9) | Convert control input | TTL-compatible sampling trigger; falling edge initiates conversion and enables SDO readout with one-cycle latency |
| CMOS/LVDS (Pin 10) | I/O interface mode select | Ground = CMOS; tie to OVDD = LVDS; float = low-power LVDS - configures serial interface electrical standard |
| OVDD (Pin 12) | Digital I/O power | 1.71 V–2.5 V supply for SDO/SCK logic levels; independent from VDD to support mixed-voltage host interfaces |
| SCK+ (Pin 16) | Serial clock input | CMOS mode: single-ended clock; LVDS mode: differential clock pair with SCK– (Pin 15); supports up to 105 MHz SCK frequency |
| SDO+ (Pin 14) | Serial data output | CMOS mode: single-ended MSB-first output referenced to OVDD; LVDS mode: differential output with SDO– (Pin 13) |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed no missing codes | Ensures monotonicity across full 16-bit range - essential for closed-loop control and metrology applications |
| Configurable CMOS/LVDS interface | Hardware-selectable I/O standard allows direct interfacing to FPGAs, DSPs, or ASICs without level-shifting circuitry |
| Integrated 4.096 V reference | Eliminates external reference component count and layout complexity while maintaining ≤20 ppm/°C drift over temperature |
| One-cycle latency | Enables deterministic timing in real-time systems - output data from CNV edge is available on next SCK falling edge |
| Nap/sleep power modes | Reduces current draw to 3.5 mA (nap) or 10 µA (sleep) - extends battery life in portable or intermittent-sampling systems |
Applications
| High-Speed Data Acquisition | Optical Networking |
|---|---|
Use Scenario: Digitizing sensor outputs from strain gauges, accelerometers, or current shunts in real-time test equipment. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 5 Msps waveform data with 81 dB SNR and minimal latency for post-processing. Use Value: Enables 13+ ENOB at 2.2 MHz, supporting IEEE 1057-compliant calibration and high-fidelity FFT analysis. | Use Scenario: Monitoring laser diode bias currents and photodiode feedback in coherent optical transceivers. IC Role / Device Role / Timing Role: High-linearity ADC for closed-loop bias control loops requiring stable gain and offset over temperature. Use Value: ±3 LSB INL and <1 psRMS jitter preserve signal integrity in multi-Gbaud modulation schemes. |
| Automotive Motor Control | Remote Sensing Systems |
Use Scenario: Sampling phase currents in three-phase inverter drives for field-oriented control (FOC) in EV traction inverters. IC Role / Device Role / Timing Role: AEC-Q100 qualified ADC providing synchronized current feedback with precise timing alignment to PWM edges. Use Value: Guaranteed –40°C to +85°C operation and 5 Msps throughput ensure reliable torque control under thermal stress. | Use Scenario: Condition monitoring of vibration, temperature, and pressure in distributed industrial IoT nodes. IC Role / Device Role / Timing Role: Low-power ADC operating in nap/sleep modes between scheduled acquisitions to extend node battery life. Use Value: 10 µA sleep current and integrated reference reduce BOM cost and PCB area in space-constrained wireless sensors. |
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, single-ended input only; no internal reference; requires external 2.5 V reference | Limited to lower-speed, single-ended signal chains; lacks differential input flexibility and automotive qualification | Select when cost-sensitive, lower-throughput designs prioritize small WSON package over differential input capability |
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, differential input; requires external reference; higher power (65 mW); no nap/sleep modes | Better resolution but higher power and no low-power states; not AEC-Q100 qualified | Select when 18-bit resolution is mandatory and automotive qualification is not required |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2311IMSE-16#WTRPBF uniquely combines AEC-Q100 qualification, integrated 4.096 V reference, configurable CMOS/LVDS I/O, and ultra-low sleep current - making it optimal for automotive and battery-powered high-speed data acquisition where reliability, integration, and power efficiency are co-prioritized.
Availability
LTC2311IMSE-16#WTRPBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking modules, automotive motor control units, and remote sensing nodes requiring stable component supply with automotive-grade reliability and traceable sourcing.
Supply support for LTC2311IMSE-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 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 requiring low latency, excellent dynamic performance, and robust operation across extended temperature ranges - especially where differential input flexibility and integrated reference simplify system design.
FAQ
What is the maximum sampling rate supported by the LTC2311IMSE-16#WTRPBF?
The LTC2311IMSE-16#WTRPBF supports a maximum sampling rate of 5 Msps, with guaranteed timing performance across its full operating temperature range (–40°C to +85°C). This rate is achieved using either CMOS or LVDS serial interface modes, and the device maintains 1-cycle latency - meaning conversion result from one CNV edge is available on the next SCK falling edge. At this rate, the LTC2311IMSE-16#WTRPBF delivers 81.6 dB SNR and ±3 LSB INL typical performance.
Does the LTC2311IMSE-16#WTRPBF require an external reference voltage?
No, the LTC2311IMSE-16#WTRPBF does not require an external reference voltage because it integrates a low-drift (≤20 ppm/°C) 4.096 V temperature-compensated reference buffer on chip (REFOUT). It also provides a 1.25 V buffered reference input (REFIN) that can be grounded to disable the internal REFOUT buffer, enabling use of an external reference between 1.25 V and VDD. This dual-reference flexibility reduces BOM count and improves design robustness for the LTC2311IMSE-16#WTRPBF.
How is the digital interface configured on the LTC2311IMSE-16#WTRPBF?
The digital interface of the LTC2311IMSE-16#WTRPBF is configured via the CMOS/LVDS pin (Pin 10): grounding selects CMOS mode (single-ended SDO/SCK), tying to OVDD selects standard LVDS mode (differential SDO+/SDO– and SCK+/SCK–), and floating enables low-power LVDS mode. OVDD must be set between 1.71 V and 2.5 V to match host logic levels. This hardware-selectable interface allows direct connection to FPGAs, DSPs, or microcontrollers without level shifters - a key advantage of the LTC2311IMSE-16#WTRPBF in mixed-voltage systems.
What power-saving modes does the LTC2311IMSE-16#WTRPBF support?
The LTC2311IMSE-16#WTRPBF supports two low-power states: Nap mode (3.5 mA typical at 5 V) entered after conversion completion, and Sleep mode (10 µA typical at 5 V) for extended idle periods. Both modes retain register settings and reference state, enabling fast wake-up (<10 ms REFOUT stabilization). These modes are controlled via dedicated control bits in the serial interface and are especially valuable in battery-powered or intermittently active systems using the LTC2311IMSE-16#WTRPBF.
Is the LTC2311IMSE-16#WTRPBF qualified for automotive applications?
Yes, the LTC2311IMSE-16#WTRPBF is AEC-Q100 qualified for automotive applications, with an operating temperature range of –40°C to +85°C and controlled manufacturing processes documented in Analog Devices' Automotive Reliability reports. The "#W" suffix in the part number explicitly denotes automotive-grade qualification, including enhanced ESD protection, rigorous lot traceability, and extended reliability testing - distinguishing it from commercial-grade variants like LTC2311CMSE-16#TRPBF. This makes the LTC2311IMSE-16#WTRPBF suitable for under-hood and infotainment subsystems.
LTC2311IMSE-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 ~ 85°C
- Supplier Device Package:
- 16-MSOP-EP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
LTC2311IMSE-16#WTRPBF FAQ
1.How can I place an order for LTC2311IMSE-16#WTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2311IMSE-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 LTC2311IMSE-16#WTRPBF reliable?
The price and inventory of LTC2311IMSE-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 LTC2311IMSE-16#WTRPBF is usually 5 days.
3.What payment methods are accepted for LTC2311IMSE-16#WTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2311IMSE-16#WTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2311IMSE-16#WTRPBF?
LTC2311IMSE-16#WTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2311IMSE-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 LTC2311IMSE-16#WTRPBF?
For technical support, including LTC2311IMSE-16#WTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2311IMSE-16#WTRPBF requirements.
6.How does Aetrix verify that LTC2311IMSE-16#WTRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2311IMSE-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 LTC2311IMSE-16#WTRPBF meets industry standards.
7.What is the process for return or replacement of LTC2311IMSE-16#WTRPBF?
All LTC2311IMSE-16#WTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2311IMSE-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 LTC2311IMSE-16#WTRPBF part is unused and in its original packaging.
Return procedure for LTC2311IMSE-16#WTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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