My Inquiry
My Account
Analog Devices Inc. LTC2335ILX-16#PBF
- Part No.:
- LTC2335ILX-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
LTC2335ILX-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2335ILX-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps, 8-channel differential successive approximation register (SAR) ADC with SoftSpan™ configurable input ranges (±10.24V, 0V–10.24V, ±5.12V, 0V–5.12V), 94.4 dB SNR, and ±1 LSB INL. It operates across –40°C to +85°C and integrates a 4.096 V reference buffer, supporting direct digitization of high-voltage industrial sensor signals in PLC analog input modules.
For engineers reviewing the LTC2335ILX-16#PBF datasheet, LTC2335ILX-16#PBF pinout, LTC2335ILX-16#PBF application, or LTC2335ILX-16#PBF equivalent, key selection criteria include guaranteed no-missing-codes at 16 bits, rail-to-rail input overdrive tolerance, programmable sequencer with no-latency control, and dual CMOS/LVDS serial interface compatibility for noise-immune digital interfacing in harsh environments.
Technical Context
The LTC2335ILX-16#PBF employs a true SAR architecture with no pipeline delay or cycle latency, enabling deterministic timing for real-time control loops. Its differential inputs feature 118 dB common-mode rejection ratio (CMRR) and support wide common-mode voltage range (VEE to VCC – 4 V), allowing direct connection to ±15 V signal sources without external level-shifting circuitry.
SoftSpan™ configuration is implemented per-conversion via SPI or LVDS command registers, enabling dynamic range switching across channels - e.g., monitoring both ±10.24 V motor current feedback and 0–5.12 V temperature sensor outputs within a single acquisition sequence - while maintaining ±1 LSB INL and 94.4 dB SNR across all supported ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, guaranteed no missing codes - ensures full dynamic range utilization without code gaps in closed-loop feedback systems. |
| Sampling Rate | 1 Msps maximum - supports real-time capture of fast transients in power line monitoring up to 500 kHz Nyquist bandwidth. |
| INL | ±1 LSB max - enables accurate DC measurement of process variables such as pressure or flow with ≤0.0015% full-scale error. |
| SNR | 94.4 dB typical (±10.24 V range, fIN = 2 kHz) - delivers >15.7 effective number of bits (ENOB) for high-fidelity waveform analysis. |
| Input Common Mode Range | VEE to VCC – 4 V - accepts bipolar signals directly from ±15 V op-amp stages without attenuation or level shift. |
| Reference | Integrated 4.096 V buffered reference (±20 ppm/°C TC) - eliminates need for external precision reference and reduces BOM count by one IC. |
| Digital Interface | Pin-selectable CMOS (1.8 V–5 V) or LVDS - allows flexible integration with FPGA I/O banks or noise-sensitive industrial controllers. |
Pinout & Package
48-lead (7 mm × 7 mm) plastic LQFP package (LX) with exposed pad; RoHS-compliant, lead-free finish; thermal resistance θJA = 53°C/W; operating junction temperature up to +150°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+ to IN7+, IN0− to IN7− | Differential analog inputs (Ch 0–7) | Accepts true bipolar or unipolar differential signals; supports ±10.24 V full-scale range with rail-to-rail overdrive tolerance. |
| VCC / VEE | High-voltage analog supplies | VCC = 0 V to +38 V, VEE = –16.5 V to 0 V; enables direct interface with ±15 V industrial signal chains. |
| REFIN / REFBUF | Internal reference input/output | REFIN outputs 2.048 V bandgap; REFBUF provides 4.096 V buffered master reference for ADC core and external circuitry. |
| CS / CNV / BUSY / SDO / SCKO / SDI / SCKI | Serial interface control & data | Supports standard SPI timing (CMOS mode) or low-jitter LVDS differential signaling for EMI-resistant communication. |
| PD | Power-down control | Active-high signal places device in <0.36 mW power-down mode; wake-up time 200 ms with 47 µF REFBUF capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Per-conversion SoftSpan™ range selection | Enables mixed-range acquisition (e.g., ±10.24 V current + 0–5.12 V voltage) without reconfiguration overhead or dead time. |
| 118 dB CMRR & 125 dB active crosstalk | Rejects shared-noise coupling between channels in multi-sensor industrial I/O modules, preserving signal integrity. |
| No pipeline delay, no cycle latency | Delivers first valid conversion result within 500 ns of CNV edge - critical for time-triggered control applications. |
| Rail-to-rail input overdrive tolerance | Withstands transient overvoltage up to |VCC – VEE| without latch-up or damage, simplifying front-end protection design. |
| Guaranteed operation to +125°C (H-grade) | This I-grade variant (–40°C to +85°C) shares same pinout and specs as H-grade, enabling drop-in thermal upgrade path. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: High-density analog input module acquiring 8 channels of 4–20 mA loop signals, thermocouple outputs, and ±10 V actuator feedback simultaneously. IC Role / Device Role / Timing Role: Primary ADC engine performing synchronized sampling with per-channel SoftSpan™ range assignment and deterministic 1 µs inter-conversion timing. Use Value: Eliminates external signal conditioning for mixed-range sensors, reducing PCB area by >30% and component count by 4–6 op-amps per channel. | Use Scenario: Distributed I/O node in refinery control system measuring pressure, flow, and temperature across hazardous-area field devices. IC Role / Device Role / Timing Role: Isolated analog front-end ADC with integrated reference, delivering calibrated 16-bit data over LVDS to isolated microcontroller via reinforced barrier. Use Value: 118 dB CMRR suppresses ground-loop noise from long cable runs; ±1 LSB INL ensures compliance with ISA-84 SIL-2 functional safety requirements. |
| Power Line Monitoring | Test and Measurement |
Use Scenario: Three-phase energy meter with harmonic analysis capability capturing voltage/current waveforms at 1 Msps for IEEE 519 compliance verification. IC Role / Device Role / Timing Role: Simultaneous sampling ADC with 94.4 dB SNR and 7 MHz –3 dB input bandwidth, feeding FFT engine in FPGA. Use Value: 94.4 dB SNR enables accurate 50th-harmonic (2.5 kHz) detection at –80 dBc; LVDS interface rejects switching noise from adjacent SMPS rails. | Use Scenario: Portable oscilloscope front-end digitizing ±10 V sensor outputs with variable gain and offset calibration. IC Role / Device Role / Timing Role: Precision acquisition subsystem providing calibrated 16-bit samples with programmable sequencer for auto-ranging and self-test sequences. Use Value: Per-conversion range switching enables seamless transition between mV-level thermocouple and 10 V accelerometer inputs without manual range selection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, multi-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, 16-bit, 1 Msps, but uses internal 2.5 V reference (not 4.096 V); requires external buffer for >2.5 V full-scale; no LVDS option. | Optimized for lower supply voltage (5 V only) and cost-sensitive industrial DAQ; lacks SoftSpan™ dynamic range switching. | Select when system already uses 2.5 V reference domain and LVDS immunity is not required. |
| ADS8688 | 8-channel, 16-bit, 1 Msps, integrated PGA (±10.24 V range supported), but only CMOS interface; SNR = 90.5 dB; no internal reference buffer. | Targeted at sensor signal conditioning with on-chip gain; higher input flexibility but lower dynamic range fidelity than LTC2335ILX-16#PBF. | Select when programmable gain is needed before ADC and 94.4 dB SNR is not mandatory. |
Compared with AD7606C-16 and ADS8688, the LTC2335ILX-16#PBF uniquely combines integrated 4.096 V reference buffer, LVDS interface, and per-conversion SoftSpan™ range selection - enabling higher system-level accuracy, noise immunity, and mixed-signal acquisition flexibility without external components.
Availability
LTC2335ILX-16#PBF is available at Aetrix Electronics and suitable for programmable logic controllers, industrial process control systems, and power line monitoring equipment requiring stable component supply, extended temperature operation (–40°C to +85°C), and long-term obsolescence management.
Supply support for LTC2335ILX-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 LTC2335 family was designed specifically for high-accuracy, high-voltage industrial data acquisition - emphasizing robustness in noisy environments, configurability across diverse sensor types, and seamless integration into isolated, safety-certified systems.
FAQ
What is the operating temperature range of the LTC2335ILX-16#PBF?
The LTC2335ILX-16#PBF is rated for operation from –40°C to +85°C (industrial grade). This is confirmed in the Absolute Maximum Ratings table and Order Information section, where "I" denotes the industrial temperature grade. The device maintains full performance specifications-including ±1 LSB INL and 94.4 dB SNR-across this entire range.
Does the LTC2335ILX-16#PBF require an external reference?
No, the LTC2335ILX-16#PBF includes an integrated 2.048 V bandgap reference (on REFIN) and a buffered 4.096 V output (on REFBUF), eliminating the need for an external reference in most applications. The REFBUF pin can drive external circuitry, and REFIN may be overdriven with an external 1.25 V–2.2 V reference if higher accuracy is required.
How does the SoftSpan™ feature work on the LTC2335ILX-16#PBF?
The SoftSpan™ feature allows per-conversion selection of eight input ranges (e.g., ±10.24 V, 0–10.24 V, ±5.12 V, 0–5.12 V) via SPI or LVDS command registers. Each channel's range is configured independently in the sequencer, enabling mixed-range acquisition without hardware reconfiguration or timing gaps - a capability confirmed in the Features and Typical Application sections.
What digital interfaces does the LTC2335ILX-16#PBF support?
The LTC2335ILX-16#PBF supports pin-selectable CMOS (1.8 V–5 V logic levels) and LVDS serial interfaces. The interface mode is selected using the LVDS/CMOS pin (Pin 24). LVDS mode provides superior noise immunity for long traces or electrically noisy environments, while CMOS mode simplifies connection to standard microcontrollers and FPGAs.
Is the LTC2335ILX-16#PBF pin-compatible with other variants in the LTC2335 family?
Yes, all LTC2335-16 variants - including LTC2335CLX-16#PBF (commercial), LTC2335ILX-16#PBF (industrial), and LTC2335HLX-16#PBF (high-temp) - share identical 48-lead LQFP (LX) packaging, pinout, and electrical interface. The only differences are temperature grading and associated AC/DC specifications guaranteed over each range.
LTC2335ILX-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):
- 1M
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial, SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2335ILX-16#PBF FAQ
1.How can I place an order for LTC2335ILX-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2335ILX-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 LTC2335ILX-16#PBF reliable?
The price and inventory of LTC2335ILX-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 LTC2335ILX-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2335ILX-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2335ILX-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2335ILX-16#PBF?
LTC2335ILX-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2335ILX-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 LTC2335ILX-16#PBF?
For technical support, including LTC2335ILX-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2335ILX-16#PBF requirements.
6.How does Aetrix verify that LTC2335ILX-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2335ILX-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 LTC2335ILX-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2335ILX-16#PBF?
All LTC2335ILX-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2335ILX-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 LTC2335ILX-16#PBF part is unused and in its original packaging.
Return procedure for LTC2335ILX-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2335ILX-16#PBF 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…
