LTC2362ITS8 - 500ksps 12-Bit Serial ADC | Analog Devices
MPN: LTC2362ITS8 ✓ NakahandaLTC2362ITS8 Ulas
A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary search across an internal capacitive DAC to resolve each conversion in N clock cycles. SAR ADCs offer deterministic latency, no pipeline delay, and excellent DC accuracy, which makes them the architecture of choice for multiplexed data-acquisition systems, industrial sensor front-ends, and precision instrumentation where every sample's timing relationship to the input must be exact.
Key features of the LTC2362ITS8 include 12-bit resolution, 500 ksps throughput, an integrated low-drift reference, 1.1 mA typical supply current at full speed, automatic power-down between conversions to reduce average current, and a wide input common-mode range. The TSOT-23-8 footprint is roughly half the board area of an MSOP-10, making this part attractive for space-constrained designs. The supply current drops automatically at lower sample rates, supporting battery-powered applications without sacrificing dynamic performance.
Architecturally, the device combines a sample-and-hold amplifier, a charge-redistribution DAC, a comparator, and a SAR control state machine. The 3-wire serial interface (CS, SCK, SDO) is compatible with standard SPI and Microwire controllers, requiring no external configuration registers - the part is hardware-strapped for 12-bit mode at 500 ksps. Internal calibration on power-up trims offset and linearity, simplifying software bring-up.
Typical applications include portable instrumentation, battery-powered data loggers, isolated industrial sensor front-ends, and general-purpose multi-channel analog monitoring where the SPI output feeds a microcontroller or FPGA. The combination of high speed, small package, and low current also suits handheld medical sensors and 4-20 mA loop-powered smart transmitters.
When designing with the LTC2362ITS8, place a 0.1 uF decoupling capacitor within 2 mm of the VDD pin and keep the analog input traces short and guarded. The reference is internal, so an external bypass of 1 uF is recommended. Ensure the SPI SCK frequency does not exceed the device's maximum to maintain conversion accuracy at full throughput.
This page synthesizes real-time distributor pricing, drop-in compatible same-family variants, and practical PCB-level design guidance not found in the manufacturer datasheet alone.
Mga alternatibo na pwedeng ilagay na LTC2362ITS8 — 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 LTC2362ITS8 (parehas na form factor at footprint) — pagkakaiba sa Operating Temperature, RoHS Status, Package, Sample Rate, Supply Voltage.
LTC2361ITS8
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2360HTS8
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2361HTS8
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2312HTS8-14
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2313HTS8-14
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2314HTS8-14
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LTC2362ITS8 Mga Pinakamataas na Rating at Electrical Characteristics
| Pangangasiwaan | 12 bits |
| Sample Rate | 500 ksps |
| Architecture | SAR (Successive Approximation Register) |
| Number of Input Channels | 1 |
| Volte ng Pagbibigay | 2.7 V to 3.6 V (single 3 V supply) |
| Supply Current (Full Speed) | 1.1 mA |
| Supply Current (Auto Power-Down) | Reduces at lower sample rates |
| Input Type | Single-ended |
| Interface | SPI / Microwire compatible (3-wire serial) |
| Reference | Internal |
| Temperature na Operasyon | -40 C to +85 C (Industrial) |
| Packhaging | TSOT-23-8 |
| Uri ng Pagpapasok | Surface Mount |
| Tindminan RoHS | Compliant |
| Bilang ng Pin | 8 |
Pin Configuration ng LTC2362ITS8
| Pin 1 | IN — Analog input (single-ended) |
| Pin 2 | GND — Ground |
| Pin 3 | REF — Reference bypass - connect 1uF to GND |
| Pin 4 | VDD — Power supply input (2.7V to 3.6V) |
| Pin 5 | SDO — Serial data output |
| Pin 6 | SCK — Serial clock input |
| Pin 7 | CS — Chip select input (active low) |
| Pin 8 | NC — Not connected (per datasheet) |
Tipikal na mga Gamit
LTC2362ITS8 ay nararapat para sa 6 aplikasyons: Portable Data Acquisition, Industrial Sensor Monitoring, Battery-Powered Sensor Nodes, Precision Instrumentation, Process Control and PLCs, Handheld Medical Devices.
Portable Data Acquisition
The LTC2362ITS8 fits portable data acquisition because it draws only 1.1 mA at 500 ksps and reduces current automatically at lower sample rates. According to the datasheet, the integrated reference and SPI interface eliminate external components, while the TSOT-23-8 footprint shrinks the analog front-end to roughly 5 mm squared - ideal for handheld DMMs, oscilloscope probes, and field data loggers. Compared to a 14-bit 500 ksps alternative, the LTC2362ITS8 trades some resolution for lower current and lower cost.
Inirekomenda
Industrial Sensor Monitoring
The LTC2362ITS8 is well matched to industrial 4-20 mA loop-powered and isolated sensor monitoring because its 12-bit resolution and 500 ksps throughput capture fast transients on temperature, pressure, and flow signals. According to the datasheet, the SPI output drives an isolated digital isolator cleanly, and the -40 C to +85 C industrial temperature grade covers most factory environments. The TSOT-23-8 package allows analog front-end circuitry to fit on a small DIN-rail sensor PCB alongside signal conditioning.
Inirekomenda
Battery-Powered Sensor Nodes
The LTC2362ITS8 suits battery-powered sensor nodes such as wireless environmental monitors and wearable health patches. According to the datasheet, the device's automatic power-down between conversions reduces average supply current to below 100 uA in low-duty-cycle operation, extending coin-cell runtime. The single 3 V supply aligns directly with CR2032 or single-cell Li-ion chemistries, and the TSOT-23-8 footprint keeps the analog section compact enough to sit alongside a BLE SoC and a coin-cell holder on a 20 mm PCB.
Inirekomenda
Precision Instrumentation
The LTC2362ITS8 is a strong fit for precision benchtop instrumentation including multimeters, source-measurement units, and lab data-acquisition boards. According to the datasheet, the integrated low-drift reference and 12-bit SAR architecture provide good DC linearity and deterministic latency that simplifies averaging and calibration. The 500 ksps throughput is sufficient to multiplex several analog channels with one ADC, and the SPI clock scales easily with the host FPGA or DSP in the instrument.
Inirekomenda
Process Control and PLCs
The LTC2362ITS8 is suitable for analog input modules on PLCs and process controllers where a small-footprint, low-power, single-channel SAR ADC captures a single 0-10 V or 4-20 mA conditioned signal per chip. According to the datasheet, the 3-wire SPI integrates with most industrial MCUs and FPGAs, and the 1.1 mA full-speed current is negligible against typical PLC backplane budgets. Designers often pair the part with a digital isolator for high-voltage industrial isolation barriers.
Inirekomenda
Handheld Medical Devices
The LTC2362ITS8 fits handheld medical devices such as pulse oximeters, blood-glucose meters, and portable ECG monitors that need to digitize low-frequency biosignals at modest rates. According to the datasheet, the integrated reference and small package simplify FDA documentation by reducing the analog BOM count, while 500 ksps provides ample headroom for oversampling to improve effective resolution. The 3 V supply matches single-cell Li-ion or 2 x AA battery stacks common in patient-facing equipment.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for LTC2362ITS8 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | LTC2361ITS8 | LTC2360HTS8 | LTC2312HTS8-14 |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | TSOT-23-8 | TSOT-23-8 - same | TSOT-23-8 - same | TSOT-23-8 - same |
| Resolution | 12 bits | 12 bits | 12 bits | 14 bits |
| Sample Rate | 500 ksps | 250 ksps | 100 ksps | 500 ksps |
| Supply Current (Full Speed) | 1.1 mA | 0.75 mA | 0.5 mA | 2.7 mA |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | H-grade -40C to +125C | H-grade -40C to +125C |
| Interface | SPI / Microwire | SPI / Microwire | SPI / Microwire | SPI / Microwire |
| Reference | Internal | Internal | Internal | Internal |
Pangunahing mga Pagkakaiba
- Highest sample rate in the TSOT-23-8 LTC236x family (kumpara saLTC2361ITS8)
- Internal reference eliminates external reference BOM (kumpara saADS8318)
- Smaller footprint than MSOP-10 SAR alternatives (kumpara saLTC2312HTS8-14)
Talaan ng Disenyo
Place a 0.1 uF X7R ceramic decoupling capacitor within 2 mm of the VDD pin, with the trace to the pin kept short and wide. The LTC2362ITS8's internal reference requires an additional 1 uF bypass on the REF pin to ground to maintain specified noise performance; do not omit this capacitor as it directly impacts AC parameters like SINAD.
Route the analog input trace on the top layer with a continuous ground pour underneath; avoid routing the digital SCK, SDO, and CS lines over or under the analog input trace. Use a single-point star ground at the LTC2362ITS8 GND pin, with the analog and digital grounds joined at the same point. Keep the analog input path short and guarded by ground to minimize coupled noise at 500 ksps.
Do not exceed the maximum SCK frequency specified in the datasheet, otherwise the ADC will not complete conversions correctly at 500 ksps. When using a long SPI cable or isolator with significant propagation delay, account for that delay in the SCK-to-SDO timing budget. The CS pin must be held low for the full 12 SCK cycles; releasing it earlier truncates the result.
Impormasyon ng Pagsunod sa Kautusan
RoHS and REACH compliant per Analog Devices product page. Not AEC-Q100 qualified - choose the LTC2360HTS8 or LTC231x HTS8 variants for high-temperature industrial applications. Lead-free TSOT-23-8 package per JESD97 e3 standard.
