LTC2335HLX-16 - 16-Bit, 1Msps 8-Ch SAR ADC | Analog Devices
MPN: LTC2335HLX-16 ✓ NakahandaLTC2335HLX-16 Ulas
What is a SAR ADC? A successive approximation register analog-to-digital converter is a precision ADC architecture that uses a binary search algorithm to convert an analog input to a digital code over N clock cycles. SAR ADCs sit within the hierarchy of ADC types as the mid-speed, mid-resolution choice — faster than delta-sigma but lower power than pipelined — and they are favored for multiplexed multi-channel data acquisition because they settle quickly between conversions.
Key features of the LTC2335HLX-16 include 94.4 dB SNR, ±1 LSB INL guaranteed, no missing codes at 16 bits, an internal precision reference, wide common-mode input range, and flexible SoftSpan input ranges configurable per channel. The integrated 8-to-1 analog input multiplexer with channel-by-channel range selection makes it ideal for systems requiring dynamic range across multiple sensor or signal inputs.
From an architectural perspective, the LTC2335-16 family uses a charge-redistribution DAC array driven by a SAR engine, achieving 16-bit deterministic latency. The wide common-mode input range simplifies front-end signal conditioning when digitizing differential signals riding on high-voltage rails — a common requirement in industrial control, power-line monitoring, and instrumentation front ends.
Typical applications include multichannel data acquisition systems, programmable logic controllers, industrial process control, power-line monitoring, and instrumentation requiring wide dynamic range across multiple input channels. The 1 Msps throughput combined with eight input channels makes it attractive for simultaneous-sampling-adjacent designs and time-multiplexed high-voltage measurement systems.
When designing with this device, place the bypass capacitors directly adjacent to the analog and reference supply pins. Decouple the OVDD logic supply separately from the analog supplies, and respect the absolute maximum ratings on analog inputs to avoid latch-up.
This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with all data cross-referenced against the LTC2335-16 datasheet.
Mga alternatibo na pwedeng ilagay na LTC2335HLX-16 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok LTC2335HLX-16 (parehas na form factor at footprint) — pagkakaiba sa Operating Temperature Range, Package, RoHS Status, Number of Channels, Input Type.
LTC2335HLX-16#PBF
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
LTC2335ILX-16#PBF
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2335CLX-16
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2335HLX-16 Mga Pinakamataas na Rating at Electrical Characteristics
| Pangangasiwaan | 16 bits |
| Number of Channels | 8 (input) / 1 (ADC) |
| ADC Architecture | SAR (Successive Approximation Register) |
| Rate ng Pagkupita | 1 Msps |
| Differential Input Range | ±10.24 V |
| INL (Integral na hindi ganap na tunay na kahulugan) | ±1 LSB |
| SNR | 94.4 dB |
| Missing Codes | None at 16 bits |
| Common-Mode Input Range | Wide (SoftSpan configurable) |
| Number of Analog Inputs | 8 |
| Analog Supply Voltage | 5 V |
| Logic Supply (OVDD) | Flexible (per interface) |
| Internal Reference | Yes (integrated precision reference) |
| Interface | SPI / serial (per datasheet) |
| Packhaging | 48-LQFP (7x7 mm) |
| Hanay ng Temperature na Operasyon | -40C to +125C (H grade) |
| Uri ng Pagpapasok | Surface Mount |
| Tindminan RoHS | Compliant (#PBF suffix) |
Gabay sa Pin Configuration ng LTC2335HLX-16 48-lqfp (7x7 mm)
Pin configuration para sa LTC2335HLX-16 (48-lqfp (7x7 mm) package). Ang analog component na ito ay may input, output, at power supply pins. Sumangguni sa datasheet ng manufacturer para sa offset null, compensation, at enable pin configurations. Perpekto para sa signal conditioning at amplifier circuits.
Wala ng detalyadong pinout data na magagamit para sa LTC2335HLX-16.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
LTC2335HLX-16 ay nararapat para sa 6 aplikasyons: Multichannel Data Acquisition Systems, Industrial Process Control, Power-Line Monitoring, Programmable Logic Controllers (PLC), Test and Measurement Instrumentation, Medical Monitoring and Diagnostic Equipment.
Multichannel Data Acquisition Systems
The LTC2335HLX-16 is purpose-built for multichannel data acquisition systems that monitor multiple analog signals with high common-mode offsets. Its integrated 8-to-1 multiplexer and 1 Msps SAR throughput allow sequential channel sampling at >100 kHz per channel rate, while 94.4 dB SNR preserves wide dynamic range across all channels. The wide common-mode input range eliminates the need for level-shifting front-ends in differential signals sitting on elevated rails, simplifying the analog chain. The 48-LQFP-EP footprint supports dense board layouts and provides good thermal performance at full sampling rate. The internal precision reference eliminates external reference drift concerns in long-duration acquisitions.
Inirekomenda
Industrial Process Control
In industrial process control loops, the LTC2335HLX-16 digitizes analog signals from multiple sensors (pressure, temperature, flow, level) at 16-bit precision with 1 Msps aggregate throughput. The SoftSpan input ranges match common industrial signal levels (±5 V, ±10 V, 0-10 V) without external conditioning. The -40C to +125C H-grade temperature rating supports cabinet-mounted installations near power electronics and motor drives. The internal reference and per-channel range selection reduce calibration overhead in production. SPI-compatible serial interface simplifies connection to industrial MCUs like Cortex-M4 devices.
Inirekomenda
Power-Line Monitoring
Power-line monitoring applications benefit from the LTC2335HLX-16's ±10.24 V differential input range, which directly digitizes voltage and current signals from PT/CT transducers without instrumentation amplifiers. The 94.4 dB SNR captures harmonics well beyond the 50th harmonic of 50/60 Hz mains, supporting advanced power-quality analysis. Wide common-mode tolerance handles the high common-mode voltages present in three-phase systems. Eight multiplexed channels monitor all three phase voltages and currents plus neutral in a single ADC. The 48-LQFP package withstands industrial thermal environments and supports conformal coating assemblies.
Inirekomenda
Programmable Logic Controllers (PLC)
PLC analog input modules use the LTC2335HLX-16 to digitize field signals from thermocouples, RTDs, and 4-20 mA loops into a single 16-bit precision conversion channel. The 8-channel multiplexer supports 8 analog inputs per ADC, while multiple ADC chips can be cascaded with synchronized conversion for higher-channel-count modules. Per-channel SoftSpan ranges let one module accept mixed signal types — bipolar ±10 V, unipolar 0-10 V, and 4-20 mA current loops — without hardware reconfig. The H-grade temperature range handles the cabinet thermal environment near IGBT drivers.
Inirekomenda
Test and Measurement Instrumentation
Bench-top and rack-mounted test and measurement instruments use the LTC2335HLX-16 for digitizing multiple test points at full 16-bit precision with 1 Msps aggregate throughput. The 94.4 dB SNR enables oscilloscope-grade dynamic range on repetitive waveforms captured by time-multiplexed channels. The internal precision reference reduces the calibration burden for bench instruments shipped to field service. Wide common-mode input range and differential inputs handle floating measurements relative to ground-referenced probes. The 48-LQFP package is easy to rework during development compared to BGA alternatives.
Inirekomenda
Medical Monitoring and Diagnostic Equipment
Medical monitoring equipment uses the LTC2335HLX-16 to digitize patient-side analog signals (ECG, EEG, EMG, SpO2) and diagnostic instrument channels with true 16-bit fidelity. The 94.4 dB SNR preserves the low-amplitude detail in electrophysiological signals critical for automated analysis. The wide common-mode input range accepts electrode-referred signals with large DC offsets. Eight multiplexed inputs cover patient-monitor channel counts typically required for multi-lead ECG and EEG. The internal reference supports long-duration patient monitoring without recalibration drift.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for LTC2335HLX-16 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | LTC2335HLX-16#PBF | LTC2335ILX-16 | LTC2335CLX-16 |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits |
| Sampling Rate | 1 Msps | 1 Msps | 1 Msps | 1 Msps |
| Channels | 8 (input) / 1 (ADC) | 8 / 1 | 8 / 1 | 8 / 1 |
| Differential Input Range | ±10.24 V | ±10.24 V | ±10.24 V | ±10.24 V |
| INL | ±1 LSB | ±1 LSB | ±1 LSB | ±1 LSB |
| Operating Temperature | -40C to +125C (H grade) | -40C to +125C | -40C to +85C (I grade) | 0C to +70C (C grade) |
Pangunahing mga Pagkakaiba
- Only multiplexed SAR ADC in LTC2335 family with H-grade -40C to +125C rating (kumpara saLTC2335ILX-16)
- RoHS-compliant variant available in same footprint (kumpara saLTC2335HLX-16#PBF)
- H-grade wider temperature range than commercial C-grade (kumpara saLTC2335CLX-16)
Talaan ng Disenyo
Place the 0.1uF and 10uF bypass capacitors as close as possible to the analog and reference supply pins, with the 0.1uF unit nearest to the package. Use a separate analog ground plane tied to a single-point star ground to keep digital switching currents from corrupting the analog return path. Keep the analog input traces short and symmetric for the differential pair to preserve SNR at full throughput.
Drive the LTC2335HLX-16 analog inputs with the LT1358 or similar low-noise, fast-settling amplifier recommended in the datasheet typical application circuit. Use a wide-bandwidth driver if the input signal has high-frequency content beyond the bandwidth of the SAR aperture. Place a lowpass filter between the driver output and the ADC input to limit wideband noise below the Nyquist rate of 1 Msps.
Do not exceed the absolute maximum analog input voltage — the LTC2335HLX-16 digitizes up to ±10.24 V differential with appropriate supplies, but overvoltage transients can latch-up the input ESD structures. Ensure the CNV (convert) and CLK signals are routed away from analog input traces to minimize digital crosstalk into the SAR comparator. Avoid powering up without the analog supply present, which violates the supply-sequencing requirement stated in the datasheet absolute maximum ratings.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per #PBF suffix on manufacturer and distributor listings. Not AEC-Q100 qualified - this is an industrial-grade ADC. Halogen-free status not specified in the verified web data.
