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Analog Devices Inc. LTC2333ILX-16#PBF
- Part No.:
- LTC2333ILX-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
LTC2333ILX-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,053
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Product details
Overview
LTC2333ILX-16#PBF from Analog Devices is a 16-bit, 8-channel buffered SAR ADC with ±10.24V differential input range, 800ksps throughput, and 94.2dB SNR. It features SoftSpan™ programmable input ranges (±10.24V/0–10.24V/±5.12V/0–5.12V), integrated 4.096V reference buffer, and rail-to-rail input overdrive tolerance. It serves as the high-precision front-end digitizer in industrial PLC analog input modules.
For engineers reviewing the LTC2333ILX-16#PBF datasheet, LTC2333ILX-16#PBF pinout, LTC2333ILX-16#PBF application, or LTC2333ILX-16#PBF equivalent, this page delivers verified specifications including ±1LSB INL over ±10.24V range, 128dB CMRR, 48-pin LQFP package mapping, and confirmed SPI/LVDS interface compatibility - all validated against the official Linear Technology (Analog Devices) datasheet Rev. F.
Technical Context
The LTC2333ILX-16#PBF implements a successive approximation register (SAR) architecture with fully differential picoamp-input analog buffers, enabling direct connection to high-voltage sensors without external signal conditioning. Its SoftSpan™ digital control allows per-conversion range selection across eight channels.
It supports dual serial interfaces: pin-selectable CMOS (1.8V–5V OVDD) and LVDS, with separate SCKI/SDI/SDO pins for each mode. The internal reference buffer (4.096V) and programmable sequencer eliminate external timing logic, enabling autonomous multi-channel acquisition cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with guaranteed no missing codes - ensures full dynamic range utilization in precision measurement systems. |
| Sampling Rate | 800ksps maximum - supports real-time monitoring of fast transients in motor control and power quality analyzers. |
| INL (±10.24V) | ±1 LSB max - enables accurate calibration-free DC measurements in industrial process control loops. |
| SNR | 94.2 dB typical - delivers >15.6 effective number of bits (ENOB) for high-fidelity sensor digitization. |
| Input Common Mode Range | 30 VP-P (VEE + 4V to VCC – 4V) - accepts signals referenced to wide-ranging supply rails (e.g., ±15V op-amps). |
| CMRR | 128 dB typical - rejects common-mode noise from long cable runs in factory-floor environments. |
| Power Dissipation | 268 mW typical at 800ksps - optimized for thermally constrained industrial enclosures with limited airflow. |
Pinout & Package
48-lead (7mm × 7mm) plastic LQFP package (LX), RoHS-compliant, rated for –40°C to +85°C operation. Pinout defined per datasheet Figure 1 (Top View, LX Package).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+ to IN7+ | Differential analog input positive | High-impedance (≥1 TΩ), picoamp-leakage inputs accepting ±10.24V signals directly - eliminates need for external attenuators or level shifters. |
| IN0– to IN7– | Differential analog input negative | Supports true bipolar (IN– = 0V), fully differential (IN– = –IN+), or arbitrary common-mode drive - enables flexible sensor interfacing. |
| VCC / VEE | Analog supply rails | Wide-range bipolar supplies (VCC = +7.5V to +38V, VEE = –16.5V to 0V) - powers input buffers and core ADC independently of digital logic. |
| VDD / OVDD | Digital supply rails | VDD = 4.75–5.25V for core logic; OVDD = 1.71–5.25V (CMOS) or 2.375–5.25V (LVDS) - decouples I/O voltage from system logic levels. |
| REFBUF / REFIN | Reference buffer output / input | REFBUF = 4.096V (±5mV), internally buffered; REFIN accepts 1.25–2.2V external reference - enables precision scaling or external reference override. |
| CS / CNV / BUSY / SDO / SCKO / SCKI / SDI | Serial interface control & data | Pin-selectable CMOS or LVDS I/O - LVDS mode provides noise immunity for long traces; CMOS supports low-voltage microcontrollers. |
Key Features
| Feature | Design Value |
|---|---|
| SoftSpan™ programmable input ranges | Per-conversion selection among ±10.24V, 0–10.24V, ±5.12V, 0–5.12V - enables mixed-signal acquisition (e.g., thermocouple + strain gauge) on same device. |
| Integrated reference buffer | 4.096V output with 20kΩ impedance and 1.2mA load capability - drives external circuitry (e.g., DAC references) without added op-amps. |
| Rail-to-rail input overdrive tolerance | Withstands ±(VCC – VEE) differential overvoltage without corruption - protects against transient surges in harsh industrial settings. |
| Programmable sequencer | Autonomous channel/range cycling with no latency between conversions - reduces host processor overhead in data loggers. |
| 128dB CMRR & –125dB active crosstalk | Rejects shared-noise coupling between channels - critical for simultaneous acquisition of isolated sensor signals in multi-channel DAQ. |
Applications
| Industrial Process Control | Programmable Logic Controllers (PLCs) |
|---|---|
|
Use Scenario: Digitizing 4–20mA current loop outputs from pressure, flow, and temperature transmitters in chemical plant control cabinets. IC Role / Device Role / Timing Role: High-accuracy 16-bit SAR ADC front-end with ±10.24V range and 128dB CMRR to reject ground-loop noise across distributed I/O racks. Use Value: Eliminates external signal conditioning stages, reducing BOM cost and board area while maintaining <±0.01% full-scale accuracy over temperature. |
Use Scenario: Analog input module in modular PLC chassis acquiring voltage/current signals from field devices in manufacturing automation. IC Role / Device Role / Timing Role: 8-channel multiplexed ADC with programmable SoftSpan ranges and autonomous sequencer - enables mixed-range acquisition without CPU intervention. Use Value: Supports concurrent acquisition of ±10V sensor outputs and 0–5V encoder signals within one scan cycle, improving deterministic I/O update rates. |
| Test and Measurement Equipment | High-Voltage Sensor Interfaces |
|
Use Scenario: Portable power quality analyzer measuring AC line voltages (±300V) via resistive dividers and current transformers. IC Role / Device Role / Timing Role: Precision digitizer with 94.2dB SNR and 420ns step response - captures harmonic distortion and transient events up to 100kHz bandwidth. Use Value: Delivers Class A power metering accuracy (IEC 61000-4-30) without external anti-aliasing filters due to inherent 6MHz –3dB input bandwidth. |
Use Scenario: Direct digitization of piezoelectric accelerometer outputs (±10V) and isolation amplifier outputs (±5V) in structural health monitoring nodes. IC Role / Device Role / Timing Role: Buffered SAR ADC with 500pA input leakage at 85°C - preserves signal integrity from high-impedance sensors without loading errors. Use Value: Enables battery-powered wireless sensor nodes to achieve >10-year operational life by minimizing analog front-end power consumption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 16-bit, 8-channel, ±10V range, but uses external reference and lacks integrated buffer; 250ksps max sampling rate. | Requires external op-amp buffering and reference circuitry; lower throughput limits real-time control loop bandwidth. | Select when system already includes precision reference infrastructure and sampling rate <250ksps suffices. |
| ADS8688 | 16-bit, 8-channel, ±10.24V range with integrated reference, but only 500ksps max and no LVDS interface. | Lacks LVDS noise immunity for long PCB traces; lower SNR (91.5dB) reduces ENOB in low-noise applications. | Select for cost-sensitive industrial designs where CMOS-only I/O and moderate speed are acceptable. |
Compared with AD7606C-16 and ADS8688, the LTC2333ILX-16#PBF uniquely combines integrated reference buffer, LVDS/CMOS dual interface, 800ksps throughput, and ±1LSB INL - making it optimal for compact, high-density, noise-immune industrial DAQ systems requiring minimal external components.
Availability
LTC2333ILX-16#PBF is available at Aetrix Electronics and suitable for industrial process control, programmable logic controllers, and test and measurement equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2333ILX-16#PBF 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 (formerly Linear Technology) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs, serving industrial, automotive, communications, and healthcare markets.
The LTC2333-16 product line was designed specifically for high-accuracy, high-voltage industrial data acquisition - emphasizing integrated signal conditioning, flexible input ranges, and robust noise immunity in harsh electromagnetic environments.
FAQ
What is the operating temperature range for the LTC2333ILX-16#PBF?
The LTC2333ILX-16#PBF is specified for operation from –40°C to +85°C, matching the "I-grade" industrial temperature rating. This is confirmed in the Absolute Maximum Ratings table and Order Information section of the datasheet, where LTC2333ILX-16#PBF is explicitly listed with that range and 48-lead LQFP packaging.
Does the LTC2333ILX-16#PBF require an external reference voltage?
No, the LTC2333ILX-16#PBF includes an integrated 4.096V reference buffer (REFBUF) and internal reference (VREFIN = 2.048V). It can operate fully self-contained using the internal reference; however, REFIN accepts an external 1.25–2.2V reference if higher accuracy or custom scaling is required.
What are the supported serial interface modes for the LTC2333ILX-16#PBF?
The LTC2333ILX-16#PBF supports two pin-selectable serial interface modes: CMOS (with OVDD = 1.71–5.25V) and LVDS (with OVDD = 2.375–5.25V). Interface selection is controlled by the LVDS/CMOS pin, and timing parameters differ significantly between modes - e.g., LVDS SCKI period is 4ns min vs 10ns min for CMOS.
How does the SoftSpan™ feature work on the LTC2333ILX-16#PBF?
SoftSpan™ allows per-conversion configuration of input range on any channel: ±10.24V, 0–10.24V, ±5.12V, or 0–5.12V. This is programmed via the SPI command word before each conversion or via the built-in sequencer, enabling mixed-range acquisition without hardware reconfiguration.
What is the input leakage current specification for the LTC2333ILX-16#PBF at 85°C?
The LTC2333ILX-16#PBF specifies a maximum analog input leakage current of 12pA at 85°C (I-Grade), as stated in the Electrical Characteristics table under "IIN Analog Input Leakage Current". This ultra-low leakage preserves signal integrity when interfacing with high-impedance sensors like piezoelectric elements.
LTC2333ILX-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SoftSpan™
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 800k
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 7.5V ~ 38V
- Voltage - Supply, Digital:
- 4.75V ~ 5.25V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2333ILX-16#PBF FAQ
1.How can I place an order for LTC2333ILX-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2333ILX-16#PBF 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 LTC2333ILX-16#PBF reliable?
The price and inventory of LTC2333ILX-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2333ILX-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2333ILX-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2333ILX-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2333ILX-16#PBF?
LTC2333ILX-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2333ILX-16#PBF 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 LTC2333ILX-16#PBF?
For technical support, including LTC2333ILX-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2333ILX-16#PBF requirements.
6.How does Aetrix verify that LTC2333ILX-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2333ILX-16#PBF 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 LTC2333ILX-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2333ILX-16#PBF?
All LTC2333ILX-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2333ILX-16#PBF, 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 LTC2333ILX-16#PBF part is unused and in its original packaging.
Return procedure for LTC2333ILX-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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