LTC2362HTS8 - 12-Bit 500ksps SAR ADC TSOT-23-8 | Analog Devices
MPN: LTC2362HTS8 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.18 | $71.80 |
| 100 | $5.74 | $574.00 |
| 500 | $4.69 | $2,345.00 |
| 1,000 | $4.12 | $4,120.00 |
LTC2362HTS8 Overview
An ADC (analog-to-digital converter) is a data-conversion IC that translates a real-world analog voltage into a discrete digital code for processing by a microcontroller, DSP, or FPGA. SAR ADCs sample the input through a track-and-hold, perform a binary search against an internal DAC, and present the result one bit per clock cycle. In the broader hierarchy, the LTC2362HTS8 sits in the SAR-ADC family within the data-converter category of mixed-signal integrated circuits. The 12-bit resolution and 500 ksps throughput place it in the precision low-power tier favored for instrumentation, sensor read-out, and portable measurement front-ends.
Key specifications include 12-bit resolution, 500 ksps sampling rate, 1.1 mA typical supply current at full speed, automatic nap/power-down between conversions, a single-ended 0 V to VDD input range, and a SPI-compatible serial interface. The HTS8 suffix designates the TSOT-23-8 surface-mount package with a thermal-pad-exposed lead frame that lowers thermal resistance versus a conventional SOT-23 footprint. Operating temperature range spans –40 °C to +125 °C (H grade), and the device is specified over the extended industrial range for harsh-environment designs.
The 500 ksps sampling rate makes the LTC2362HTS8 well suited to multi-channel multiplexing architectures where each channel is sampled sequentially. The combination of low 1.1 mA supply current and automatic power-down enables battery-powered data-acquisition systems that idle most of the time and only burst-sample on demand. Designers should keep in mind that the H grade operating range, TSOT-23-8 footprint, and 3 V nominal supply set this part apart from higher-resolution or higher-speed pipeline ADCs in the broader product family.
Typical applications include portable instrumentation, multi-channel data-acquisition front-ends, sensor signal conditioning read-outs, and industrial process-control analog input modules. This page synthesizes distributor stock, drop-in pin-compatible alternatives within the LTC236x family, and practical layout notes that complement the official datasheet.
Drop-in alternatives for LTC2362HTS8 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LTC2362HTS8 (same form factor and footprint) — differing in RoHS Status, Resolution, Data Interface, Number of Channels, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LTC2362CTS8
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LTC2362HTS8#TRMPBF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LTC2361HTS8
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.85 / Unit
View Datasheet →LTC2360HTS8
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →ADC081S021CIMMX
✅ Drop-In📋 Reference alternative (not in catalog)
LTC2362HTS8 Maximum Ratings & Electrical Characteristics
| Resolution | 12 bits |
| Sampling Rate | 500 ksps |
| Architecture | SAR (Successive Approximation Register) |
| Number of Input Channels | 1 |
| Analog Input Range | 0 V to VDD (or VREF) |
| Supply Voltage | 2.35 V to 3.6 V (single 3 V nominal) |
| Supply Current at Full Speed | 1.1 mA typical |
| Digital Interface | SPI/QSPI/MICROWIRE-compatible serial |
| Automatic Power-Down | Yes (nap between conversions) |
| Full-Scale Reference | VDD or external VREF |
| Operating Temperature Range | −40 °C to +125 °C (H grade) |
| Package | TSOT-23-8 (HTS8) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (Pb-free #PBF suffix) |
| Daisy-Chain Mode | Yes (multiple ADCs share one SCK/MOSI bus) |
| Related Family Members | LTC2360 (100 ksps), LTC2361 (250 ksps) |
LTC2362HTS8 Pin Configuration
| Pin 1 | AVDD — Analog power supply (2.35 V to 3.6 V) |
| Pin 2 | REF — Reference voltage input / 2.5 V internal bypass node |
| Pin 3 | GND — Analog ground (also die-attach paddle) |
| Pin 4 | VIN — Analog input (single-ended 0 V to VDD) |
| Pin 5 | CS — Chip select, active low |
| Pin 6 | SDO — Serial data output |
| Pin 7 | SCK — Serial clock input |
| Pin 8 | AVDD — Analog power supply (second pad; tie to pin 1) |
Typical Applications
LTC2362HTS8 is suitable for 7 applications: Portable Battery-Powered Instrumentation, Multi-Channel Sensor Data-Acquisition Front-End, Industrial Process-Control Analog Input Module, Medical Patient-Monitoring Sensor Read-Out, Communications RF Power-Detector Read-Out, Automotive Sensor Signal Conditioning, Test & Measurement Handheld Multimeter Front-End.
Portable Battery-Powered Instrumentation
Portable battery-powered instrumentation demands a 12-bit ADC that draws microamp-level current between bursts. The LTC2362HTS8's 1.1 mA active current drops to a few microamps in nap mode, and 500 ksps is fast enough to digitize transducer pulses on demand. Pair with an LT1761-3.3 LDO and a low-leakage MUX (ADG708), then run the ADC's SPI into a low-power MCU such as the STM32L0 for sub-100 µA average system draw. Versus an LTC2360HTS8 (100 ksps) the LTC2362HTS8 doubles throughput with only 0.6 mA extra current, making it the right pick for handheld oscilloscope front-ends, field data loggers, and remote sensor read-outs where every milliamp-hour matters.
Recommended
Multi-Channel Sensor Data-Acquisition Front-End
Multi-channel data acquisition multiplexes many analog sensors through one ADC. The LTC2362HTS8 supports SPI daisy-chain mode, so several ADCs can share one SCK bus; its 500 ksps throughput scans 8 or 16 MUX channels sequentially without bottlenecking a 1 kHz per-channel sampling rate. Use an ADG708 (8:1) or ADG726 (16:1) low-leakage analog MUX upstream and a 2.5 V ADR03 reference for absolute ratiometric accuracy. Engineers should budget 100 ns for SCK t_Q delay before clocking in data and keep analog trace lengths matched to minimize channel-to-channel crosstalk at the 12-bit level.
Recommended
Industrial Process-Control Analog Input Module
Industrial process-control analog input modules operate across wide temperatures and noisy environments. The LTC2362HTS8 H grade is specified from −40 °C to +125 °C, its TSOT-23-8 footprint fits compact PLC analog cards, and its 0 V to VDD input accepts a 4–20 mA loop signal after a precision current-sense resistor. The 1.1 mA active current plus automatic power-down suits isolated ADC front-ends that draw average current from loop power. At 500 ksps the LTC2362HTS8 provides a tenfold oversampling headroom when running 10 ms per-channel conversions, simplifying upstream anti-alias filter design and preserving true 12-bit INL performance in noisy factory environments.
Recommended
Medical Patient-Monitoring Sensor Read-Out
Medical patient-monitoring sensor read-outs require low-power, high-resolution ADCs that can sit close to the patient body. The LTC2362HTS8's 12-bit resolution is sufficient for ECG, SpO2, and temperature front-ends, and 500 ksps oversamples pulse oximetry waveforms in real time, simplifying digital filtering. Its automatic power-down keeps the ADC quiescent between heartbeats, extending battery life in wearable Holter monitors. Use a 0.1 µF ceramic bypass directly on the AVDD pad and a 4-wire Kelvin sense on the reference to keep noise below 1 LSB at the 12-bit level — see the LTC2362 datasheet layout guidelines for trace guidance near the exposed thermal paddle.
Recommended
Communications RF Power-Detector Read-Out
Communications RF power-detector read-outs need a fast ADC to track envelope fluctuations. The LTC2362HTS8's 500 ksps sampling rate captures envelope peaks in 0.35 µs, well within the bandwidth of typical RF detector circuits such as the LTC5507. The 12-bit resolution resolves 0.2 dB steps across a 60 dB power range when paired with an external log amplifier, and the SPI bus interfaces cleanly with an FPGA or DSP for closed-loop automatic gain control. The TSOT-23-8 footprint near the RF front-end minimizes routing parasitics; designers should keep the analog ground paddle stitched with a single via fence to the inner ground plane.
Recommended
Automotive Sensor Signal Conditioning
Automotive sensor signal conditioning modules need AEC-Q100-grade ADCs in compact footprints. The LTC2362HTS8 H grade covering −40 °C to +125 °C survives engine-bay thermal stress, and the TSOT-23-8 footprint fits small ECUs under the dashboard or in transmission controllers. The 500 ksps sampling rate oversamples wheel-speed or pedal-position sensors by 20x, easing anti-alias filtering and yielding extra effective bits. Note that AEC-Q100 qualification is at the vehicle-maker level; for production automotive designs, verify the specific Q-suffix variant of the LTC2362 family and reference the Analog Devices automotive product portfolio.
Recommended
Test & Measurement Handheld Multimeter Front-End
Test and measurement handheld multimeters demand battery-efficient ADCs with reliable performance across input ranges. The LTC2362HTS8's 12-bit resolution suits 0.1 percent-class voltage, current, and resistance measurements, while its automatic power-down preserves battery life across thousands of field measurements. The SPI interface streams conversions directly to a low-cost MSP430 or similar MCU for display update. Pair the ADC with a precision front-end op-amp like the LTC2050 for sub-1 µV offset and add a 10 µF/0.1 µF bypass network on AVDD; keep SCK trace below 50 mm to avoid ringing and ensure 2 ns setup time.
Recommended
Recommended Products Summary
Engineering reference data for LTC2362HTS8 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LTC2362CTS8 | LTC2362HTS8#TRMPBF | LTC2361HTS8 | LTC2360HTS8 | ADC081S021CIMMX |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Package | TSOT-23-8 (HTS8) | TSOT-23-8 — same | TSOT-23-8 — same | TSOT-23-8 — same | TSOT-23-8 — same | TSOT-23-8 — same |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 8 bits |
| Sampling Rate | 500 ksps | 500 ksps | 500 ksps | 250 ksps | 100 ksps | 200 ksps |
| Supply Voltage Range | 2.35 V to 3.6 V | 2.35 V to 3.6 V | 2.35 V to 3.6 V | 2.35 V to 3.6 V | 2.35 V to 3.6 V | 2.7 V to 5.25 V |
| Operating Temperature | −40 °C to +125 °C | 0 °C to +70 °C | −40 °C to +125 °C | −40 °C to +125 °C | −40 °C to +125 °C | −40 °C to +85 °C |
| Auto Power-Down | Yes (nap mode) | Yes | Yes | Yes | Yes | No (always on) |
| SPI Daisy-Chain | Yes | Yes | Yes | Yes | Yes | No |
| Reference Source | Internal or external VREF | Internal or external | Internal or external | Internal or external | Internal or external | External VDD |
Key Differentiators
- Highest speed in the LTC236x TSOT-23-8 family (vs LTC2361HTS8)
- Full industrial temperature range for harsh environments (vs LTC2362CTS8)
- 12-bit resolution versus typical 8-bit SAR ADCs in TSOT-23-8 (vs ADC081S021CIMMX)
- Automatic nap-mode power-down at idle (vs ADC081S021CIMMX)
Design Notes
Place a 0.1 µF X7R ceramic bypass capacitor within 1 mm of the AVDD pad, and a 10 µF X5R bulk capacitor within 5 mm of the same pad. The LTC2362's automatic power-down injects high-frequency current spikes at the start of each conversion; a low-ESR ceramic decoupling network inside 5 mm prevents ground-bounce noise from degrading the last 1–2 bits of conversion.
Treat the TSOT-23-8 die-attach paddle (GND, pin 3) as the only low-impedance ground return. Stitch it directly to the inner ground plane with a 4-via fence pattern for thermal relief and ground integrity. Keep all analog traces (REF, VIN, AVDD) on the top layer over a continuous ground pour below, and avoid routing SCK/SDO across the analog input traces to avoid digital-to-analog crosstalk.
Do not exceed the 3.6 V absolute-maximum supply rating on AVDD or REF; even brief transients above this level can permanently damage the device. If the rail is shared with a 5 V logic family, level-shift CS/SCK/SDO with a 74HCT4050 or use a 3.3 V LDO to clamp the supply. Also confirm that VREF is fully settled before initiating conversions — premature conversions during startup cause linear INL errors visible only at the 12-bit level.
Estimated: at 500 ksps with a 50 MHz SCK source, the LTC2362HTS8 consumes 25 kSamples/s of accumulated charge. Series termination (33 Ω near the SCK driver) suppresses reflections on traces longer than 25 mm. Keep SDO trace length matched within 5 mm of SCK to preserve the t_DO SCK-to-data setup time (5 ns typical) over process, voltage, and temperature. Add a 1 MΩ pull-down on CS to keep the ADC in power-down during MCU reset.
If the LTC2362HTS8 is paired with an external reference such as the ADR03, place the reference bypass capacitors (1 µF in parallel with 0.1 µF) within 2 mm of the REF pin, and route REF as a guard-track-surrounded trace from the reference to the ADC. Buffer the input signal with a precision low-offset op-amp (LTC2050 or LTC2054) when driving low-current potentiometric sources to avoid source-impedance-induced conversion error.
Compliance Information
Pb-free #PBF suffix indicates RoHS compliance. AEC-Q100 status varies by suffix; check the specific Q-graded variant of the LTC2362 family for automotive use. Reach and conflict-mineral status per Analog Devices corporate compliance documentation as of 2026-10-13.
