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Analog Devices Inc. LTC2353ILX-16#PBF
- Part No.:
- LTC2353ILX-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
LTC2353ILX-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:258
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Product details
Overview
LTC2353ILX-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, dual-channel simultaneous-sampling SAR ADC with buffered differential inputs, ±10.24V input range, 550ksps per channel throughput, and integrated 4.096V reference buffer-designed for high-voltage industrial process control and power line monitoring where wide common-mode range and rail-to-rail overdrive tolerance are critical.
For engineers reviewing the LTC2353ILX-16#PBF datasheet, LTC2353ILX-16#PBF pinout, LTC2353ILX-16#PBF application, or LTC2353ILX-16#PBF equivalent, this page delivers verified specifications including SoftSpan™ per-channel range selection (±10.24V/0–10.24V/±5.12V/0–5.12V), 94.2dB SNR, 124dB CMRR, LVDS/CMOS serial interface options, and 48-lead LQFP package details-enabling accurate signal digitization in harsh, high-dynamic-range environments.
Technical Context
The LTC2353ILX-16#PBF implements a successive approximation register (SAR) architecture with two independent analog front-ends, each featuring picoamp-input buffers and programmable SoftSpan™ input ranges. It operates from dual high-voltage supplies (VCC = +7.5V to +38V, VEE = –16.5V to 0V) and a low-voltage digital supply (VDD = 4.75V–5.25V), enabling direct interfacing to ±15V sensor outputs without external level-shifting.
Its timing architecture uses an internal conversion clock with no cycle latency, supports pin-selectable SPI CMOS (1.8V–5V) or LVDS serial I/O, and allows one-channel disable to boost throughput to 800ksps on the remaining channel. The device achieves ±1LSB INL over full temperature range (–40°C to +85°C) and guarantees 16-bit no-missing-codes performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-code resolution with no missing codes across all operating conditions. |
| Sampling Rate | 550ksps per channel (dual-channel), 800ksps (single-channel) - enables real-time capture of fast transients in power quality monitoring. |
| Input Range | Per-channel SoftSpan™: ±10.24V, 0–10.24V, ±5.12V, or 0–5.12V - eliminates external gain/attenuation circuitry for mixed-signal systems. |
| SNR / THD | 94.2dB SNR, –110dB THD at 2kHz - preserves signal fidelity for precision measurement of harmonics and distortion in AC mains. |
| Common-Mode Range | 30VP-P (VEE + 4V to VCC – 4V) - accepts arbitrary common-mode voltages up to ±15V while maintaining 124dB CMRR. |
| Interface | Pin-selectable CMOS (1.8V–5V) or LVDS serial I/O - supports noise-immune long-distance transmission or low-power board-level communication. |
| Power Dissipation | 162mW typical (dual-channel, 550ksps) - balances high performance with thermal manageability in dense industrial PCB layouts. |
Pinout & Package
48-lead (7mm × 7mm) plastic LQFP package (LX) with exposed pad for thermal management; RoHS-compliant, lead-free finish (#PBF). Pin functions validated per Linear Technology (now Analog Devices) LTC2353-16 datasheet Rev. F.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+, IN0– IN1+, IN1– | Differential analog inputs (Channel 0 & 1) | Buffered picoamp-input pairs supporting ±10.24V true bipolar or unipolar drive; rail-to-rail overdrive tolerance prevents latch-up. |
| VCC, VEE | Analog supply rails | High-voltage dual supplies: VCC = +7.5V to +38V, VEE = –16.5V to 0V - powers analog front-end and enables direct ±15V signal acquisition. |
| VDD, OVDD | Digital core & I/O supply | VDD = 4.75–5.25V (core logic); OVDD = 1.71–5.25V (CMOS) or 2.375–5.25V (LVDS) - decouples digital noise from analog section. |
| REFIN, REFBUF | Reference input & buffered output | REFIN accepts 1.25–2.2V external reference; REFBUF provides 4.096V (±5mV) buffered output - eliminates need for external reference buffer IC. |
| CS, SCKI, SDI, SDO0/SDO1, BUSY, CNV | Serial interface control & data | Standard SPI-compatible timing with LVDS/CMOS select; BUSY indicates conversion status; CNV initiates sampling - simplifies FPGA/microcontroller integration. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel SoftSpan™ input configuration | Independent range selection per channel (±10.24V/0–10.24V/±5.12V/0–5.12V) reduces BOM count and layout complexity in multi-sensor systems. |
| 124dB CMRR at 200Hz | Rejects high-amplitude common-mode noise (e.g., 50/60Hz pickup in motor drives) without external instrumentation amplifiers. |
| 500pA max input leakage (85°C) | Preserves accuracy when measuring high-impedance sources (e.g., piezoelectric sensors or voltage dividers with >1MΩ impedance). |
| Integrated reference buffer (4.096V) | Eliminates external op-amp buffer, saving PCB area and reducing drift-induced errors in precision measurement chains. |
| Rail-to-rail input overdrive tolerance | Withstands transient overvoltage up to ±(VCC–VEE) without damage or conversion corruption - enhances system robustness in utility-grade equipment. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: Digitizing analog feedback signals from pressure, temperature, and flow sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling ADC with ±10.24V range and 550ksps throughput captures correlated sensor data without phase skew. Use Value: Enables closed-loop control with sub-microsecond timing alignment between channels, improving PID loop stability in high-speed manufacturing lines. | Use Scenario: Monitoring voltage, current, and harmonic content across multiple phases in distributed control systems. IC Role / Device Role / Timing Role: Buffered differential ADC with 30VP-P common-mode range interfaces directly to isolation amplifiers or resistive dividers. Use Value: Reduces component count by eliminating external signal conditioning, while 94.2dB SNR ensures accurate RMS and THD calculation per IEC 61000-4-30. |
| Power Line Monitoring | Test and Measurement |
Use Scenario: Real-time acquisition of AC mains waveforms for power quality analysis (flicker, sag, swell, harmonics). IC Role / Device Role / Timing Role: Simultaneous sampling SAR ADC with ±10.24V input and LVDS interface transmits clean data to FPGA-based FFT engines. Use Value: 124dB CMRR rejects common-mode noise from switching power supplies, and –110dB THD enables Class A power analyzer compliance. | Use Scenario: High-accuracy data acquisition in benchtop DMMs and automated test equipment requiring traceable calibration. IC Role / Device Role / Timing Role: 16-bit no-missing-codes ADC with ±1LSB INL and integrated 4.096V reference buffer serves as primary digitizer stage. Use Value: Eliminates external reference drift errors; 500pA input leakage ensures stable readings from high-Z calibration sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-voltage SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, 16-bit, ±10V input, parallel/serial interface; requires external reference; 250ksps/channel. | Higher channel count but lower throughput; lacks SoftSpan™ flexibility and integrated reference buffer. | Select when system requires >2 channels and can accept reduced sampling rate and added external reference design effort. |
| ADS8688 | 8-channel, 16-bit, ±10.24V input, SPI-only; integrated reference; 100ksps/channel; single-supply operation. | Lower throughput and channel density; optimized for low-power, single-supply industrial I/O, not high-dynamic-range simultaneous sampling. | Select for cost-sensitive, lower-speed applications where 550ksps/channel and dual high-voltage supplies are unnecessary. |
Compared with AD7606C-16 and ADS8688, the LTC2353ILX-16#PBF uniquely combines dual-channel simultaneous sampling at 550ksps, per-channel SoftSpan™ range selection, integrated 4.096V reference buffer, and 30VP-P common-mode range - making it optimal for space-constrained, high-fidelity power monitoring and control systems demanding minimal external components.
Availability
LTC2353ILX-16#PBF is available at Aetrix Electronics and suitable for industrial process control, power line monitoring, and test and measurement applications requiring stable component supply, extended temperature support (–40°C to +85°C), and long-term production continuity.
Supply support for LTC2353ILX-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, 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 LTC2353ILX-16#PBF belongs to ADI's precision SAR ADC product line, engineered specifically for high-voltage, high-dynamic-range industrial data acquisition where simultaneous sampling, wide common-mode rejection, and integrated signal conditioning are essential.
FAQ
What is the maximum sampling rate of the LTC2353ILX-16#PBF in dual-channel mode?
The LTC2353ILX-16#PBF achieves 550ksps per channel when both channels are enabled. This is its rated maximum simultaneous sampling rate, supported by internal timing architecture with no cycle latency and guaranteed 16-bit no-missing-codes performance across the full –40°C to +85°C operating range.
Does the LTC2353ILX-16#PBF require an external reference voltage?
No, the LTC2353ILX-16#PBF includes an integrated reference buffer that delivers a precise 4.096V output (±5mV) when using the internal reference. An external reference may be applied via the REFIN pin (1.25V–2.2V), but it is optional - the LTC2353ILX-16#PBF operates fully functional with only VCC, VEE, VDD, and OVDD supplies.
What are the valid input voltage ranges supported by the LTC2353ILX-16#PBF?
The LTC2353ILX-16#PBF supports four per-channel SoftSpan™ input ranges: ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V. These are selected independently for each channel on a conversion-by-conversion basis, enabling flexible signal acquisition without hardware reconfiguration.
How does the LTC2353ILX-16#PBF handle input overvoltage conditions?
The LTC2353ILX-16#PBF features rail-to-rail input overdrive tolerance: analog inputs (IN0±, IN1±) withstand voltages from (VEE – 0.3V) to (VCC + 0.3V) without damage or conversion corruption. Driving an input above VCC up to 10mA is safe; however, driving below VEE may affect other channel conversions per datasheet Note 8.
What package type and pin count does the LTC2353ILX-16#PBF use?
The LTC2353ILX-16#PBF uses a 48-lead plastic LQFP package (7mm × 7mm, LX footprint) with exposed pad for thermal dissipation. It is RoHS-compliant and supplied with lead-free finish (#PBF), matching the pinout and mechanical dimensions specified in the official Analog Devices LTC2353-16 datasheet.
LTC2353ILX-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):
- 550k
- Number of Inputs:
- 2
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- LVDS - Serial, SPI
- Configuration:
- S/H-MUX-ADC
- Ratio - S/H:ADC:
- 2:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- 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:
- -
LTC2353ILX-16#PBF FAQ
1.How can I place an order for LTC2353ILX-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2353ILX-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 LTC2353ILX-16#PBF reliable?
The price and inventory of LTC2353ILX-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 LTC2353ILX-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2353ILX-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2353ILX-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2353ILX-16#PBF?
LTC2353ILX-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2353ILX-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 LTC2353ILX-16#PBF?
For technical support, including LTC2353ILX-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2353ILX-16#PBF requirements.
6.How does Aetrix verify that LTC2353ILX-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2353ILX-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 LTC2353ILX-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2353ILX-16#PBF?
All LTC2353ILX-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2353ILX-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 LTC2353ILX-16#PBF part is unused and in its original packaging.
Return procedure for LTC2353ILX-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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