LTC2360HTS8 - 12-Bit 100kSPS SAR ADC in TSOT-23-8 | Analog Devices
MPN： LTC2360HTS8 ✓ 啟用中LTC2360HTS8 概覽
A SAR ADC is a sampling converter that uses a binary search through an internal capacitive DAC to resolve each analog sample in one conversion cycle. The SAR architecture offers a deterministic latency of one conversion cycle, intrinsic single-shot accuracy, and excellent dynamic performance at moderate sampling rates, distinguishing it from sigma-delta converters (which trade latency for higher resolution) and from pipeline ADCs (which require higher power and more complex calibration). Within the broader component hierarchy, the LTC2360HTS8 sits at: SAR ADC -> analog-to-digital converter -> data converter -> signal chain IC -> semiconductor.
Key electrical features include 12-bit resolution, 100 kSPS maximum sampling rate, single-ended analog input, SPI/serial digital interface, external voltage reference, and 1:1 sample-and-hold-to-ADC ratio. Supply current scales down automatically at lower sampling rates, and the device operates from a 2.35 V to 3.6 V supply with a -40 °C to +125 °C extended automotive temperature range, making it a robust fit for industrial and harsh-environment data-acquisition front ends.
Typical applications include portable instrumentation, sensor signal conditioning, isolated data acquisition, battery monitoring, and high-speed closed-loop control. The compact TSOT-23-8 footprint also enables use in space-constrained designs such as wearables, IoT edge nodes, and small-form-factor PLC analog input modules.
When designing with this part, observe the analog input drive and reference decoupling recommendations in the manufacturer datasheet, and place the 0.1 µF reference bypass capacitor as close as possible to the REF pin to avoid conversion noise. The serial interface simplifies galvanic isolation and is compatible with most modern microcontrollers and DSPs.
This page consolidates distributor pricing, drop-in alternatives in the same TSOT-23-8 footprint, and practical design considerations not found in a single datasheet excerpt, giving engineers a single reference for BOM validation, sourcing, and layout review.
直接替換替代品，適用於 LTC2360HTS8 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LTC2360HTS8 （相同外形與佔位） — 差異在於 Resolution, RoHS Status, Input Type, Sample Rate, Supply Voltage.
LTC2361HTS8#TRMPBF
✅ 直接替換📋 參考替代品（不在目錄中）
LTC2362HTS8#TRMPBF
✅ 直接替換📋 參考替代品（不在目錄中）
LTC2312HTS8-12#TRMPBF
✅ 直接替換📋 參考替代品（不在目錄中）
LTC2360ITS8#TRMPBF
✅ 直接替換📋 參考替代品（不在目錄中）
LTC2313HTS8-14
✅ 直接替換聯絡詢價
查看資料表 →LTC2314HTS8-14
✅ 直接替換聯絡詢價
查看資料表 →LTC2360HTS8 最大額定值與電氣特性
| 解析度 | 12 bits |
| 取樣率 | 100 kSPS |
| Number of Channels | 1 (single-ended) |
| Architecture | SAR (Successive Approximation Register) |
| 供應電壓 | 2.35 V to 3.6 V (single supply) |
| 供應電流 | 0.5 mA (typ at 100 kSPS, 3 V supply) |
| Reference Type | External voltage reference |
| Data Interface | Serial SPI-compatible |
| Sample-and-Hold to ADC Ratio | 1:1 |
| Analog Input Type | Single-ended |
| Number of A/D Converters | 1 |
| 工作溫度 | -40 °C to +125 °C |
| 封裝 | TSOT-23-8 |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant (per datasheet suffix #TRMPBF) |
LTC2360HTS8 腳位配置
| 腳位 1 | AIN — Analog input (single-ended) |
| 腳位 2 | GND — Ground |
| 腳位 3 | VDD — Power supply (2.35V to 3.6V) |
| 腳位 4 | REF — External reference voltage input |
| 腳位 5 | GND — Ground |
| 腳位 6 | SDO — Serial data output (SPI) |
| 腳位 7 | SCK — Serial clock input |
| 腳位 8 | CNV — Convert / chip select (active low) |
典型應用
LTC2360HTS8 適用於 6 應用s: Portable Instrumentation and Data Loggers, Industrial Sensor Signal Conditioning, Battery Management and Monitoring, Isolated Data Acquisition Modules, Wearable and IoT Edge Sensor Nodes, Motor Control and Closed-Loop Position Feedback.
Portable Instrumentation and Data Loggers
The LTC2360HTS8's 0.5 mA supply current at 100 kSPS from a 3 V rail makes it ideal for battery-powered portable instrumentation, including handheld multimeters, environmental data loggers, and field measurement tools. The single-ended analog input and external reference allow the part to scale from 0 V to VREF input range, with the small TSOT-23-8 footprint fitting inside space-constrained enclosures. The 12-bit resolution provides one part in 4096 LSB precision, sufficient for thermocouple, thermistor, and bridge-sensor signal chains after front-end conditioning. Unlike sigma-delta alternatives, the SAR architecture gives deterministic single-cycle latency, simplifying time-stamped sample acquisition in logging firmware.
推薦
Industrial Sensor Signal Conditioning
In industrial 4-20 mA loop transmitters, strain-gauge bridges, and pressure-sensor front ends, the LTC2360HTS8 provides the 12-bit digitization needed for process control feedback. Its 100 kSPS sampling rate comfortably handles multiplexed multi-channel scanning at typical industrial update rates of 1-10 kHz per channel, and the -40 °C to +125 °C operating range (H grade commercial or I grade industrial variants) tolerates factory-floor thermal extremes. The serial SPI output simplifies isolation through digital isolators such as the ADuM1411, breaking ground loops between the field-side analog front end and the controller-side MCU. The external reference allows precision ratiometric measurement with the sensor excitation supply.
推薦
Battery Management and Monitoring
The LTC2360HTS8 fits well into multi-cell battery monitoring PCBs in electric vehicles, e-bikes, and uninterruptible power supplies, where compact size and low 0.5 mA consumption per channel add up across 8-16 series cells. With 12-bit resolution and 0-3.6 V input range from a 3 V reference, the ADC delivers approximately 0.88 mV LSB - fine enough to detect cell imbalance and state-of-charge drift over time. The single-cycle conversion latency enables synchronous sampling without complex digital filtering, and the TSOT-23-8 package keeps the analog front-end PCB small enough to sit directly across the cell-tap connector, minimizing trace-induced noise pickup.
推薦
Isolated Data Acquisition Modules
Galvanically isolated data acquisition modules benefit from the LTC2360HTS8's low supply current, since total module power consumption is constrained by the isolated-side DC-DC converter budget. The serial SPI interface routes cleanly through 4-channel digital isolators such as the ADuM1411, keeping the isolation barrier count low. The 100 kSPS sample rate is more than sufficient for typical 1-10 kHz process-control channel bandwidth, and the deterministic one-cycle SAR latency avoids the pipeline-delay ambiguity that complicates multi-channel timing in some pipeline ADCs.
推薦
Wearable and IoT Edge Sensor Nodes
Wearables, fitness trackers, and IoT edge sensor nodes demand extremely small PCB footprint and sub-mW power consumption, both of which the LTC2360HTS8 delivers in its TSOT-23-8 (2.9 mm x 1.6 mm) package and 0.5 mA / 1.5 mW operating power. The 12-bit resolution is sufficient for biometric signal chains such as PPG heart-rate, skin temperature, and motion-compensated orientation, after analog front-end amplification. The supply current scales down automatically at lower sample rates, making the part especially efficient in duty-cycled edge nodes that wake briefly to take a measurement and return to sleep.
推薦
Motor Control and Closed-Loop Position Feedback
The LTC2360HTS8's deterministic single-cycle SAR latency makes it well suited to closed-loop feedback in BLDC and stepper motor drives, where current-sense and position-sensor signals must be sampled at known delays relative to the PWM edge. With 100 kSPS, the ADC can digitize a few current-sense channels at 20-50 kHz per channel, suitable for FOC (field-oriented control) loops running at 10-20 kHz. The 12-bit resolution provides 0.024% full-scale current-measurement precision, adequate for torque-ripple optimization. The TSOT-23-8 footprint keeps the analog section compact enough to fit on the same PCB as the power stage.
推薦
推薦產品摘要
工程參考資料，適用於 LTC2360HTS8 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LTC2361HTS8#TRMPBF | LTC2362HTS8#TRMPBF | LTC2312HTS8-12#TRMPBF | LTC2360ITS8#TRMPBF |
|---|---|---|---|---|---|
| Package | TSOT-23-8 | TSOT-23-8 - same | TSOT-23-8 - same | TSOT-23-8 - same | TSOT-23-8 - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Sampling Rate | 100 kSPS | 250 kSPS | 500 kSPS | 500 kSPS | 100 kSPS |
| Supply Current (typ) | 0.5 mA | 0.75 mA | 1.1 mA | 1.1 mA (typ) | 0.5 mA |
| Supply Voltage | 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 3.6 V | 2.35 V to 3.6 V |
| Operating Temperature | 0 °C to +70 °C (H grade) | 0 °C to +70 °C | 0 °C to +70 °C | -40 °C to +125 °C | -40 °C to +125 °C |
| Reference Type | External | External | External | External | External |
| Data Interface | Serial SPI | Serial SPI | Serial SPI | Serial SPI | Serial SPI |
主要差異化特點
- Lowest sampling rate in the LTC236x family, with lowest supply current (對比LTC2361HTS8 (250 kSPS) and LTC2362HTS8 (500 kSPS))
- H grade commercial temperature vs I grade industrial (對比LTC2360ITS8#TRMPBF)
- 12-bit resolution matches application sweet spot for sensor signal chains (對比LTC2313HTS8-14 (14-bit) and LTC2314HTS8-14 (14-bit))
設計說明
The LTC2360HTS8 draws 0.5 mA from a 2.35 V to 3.6 V supply at full 100 kSPS throughput, and the supply current scales down automatically at lower sampling rates. Estimated: at 10 kSPS the supply current drops to roughly 50 µA, making the part well suited to duty-cycled battery-powered designs. Use a low-noise LDO such as the LT3010 or ADP150 on the analog supply rail, and decouple VDD with a 0.1 µF X7R ceramic capacitor placed within 3 mm of the VDD pin.
Place the 0.1 µF reference bypass capacitor as close as possible to the REF pin (pin 4) with a short, wide ground return to the GND pin (pin 5) to avoid conversion noise. The analog input trace (pin 1, AIN) should be guarded by ground traces on both sides and kept away from the SCK/SDO digital switching lines to minimize digital-to-analog crosstalk. Use a single continuous ground plane on layer 2 with the ADC's GND pin (pin 2 or 5) stitching directly to it via multiple vias.
Do not leave the REF pin floating - the part requires an external reference and will not produce valid conversions without one. The analog input must be driven by a low-impedance buffer (op-amp output stage) capable of settling to 12-bit accuracy within the acquisition window, which at 100 kSPS is approximately 700 ns. A common pitfall is to drive AIN directly from a high-impedance resistive divider, which introduces acquisition-time distortion visible as INL and DNL errors at the LSB level.
合規資訊
RoHS and REACH compliance confirmed for #TRMPBF suffix per Analog Devices product page and DigiKey listing. AEC-Q100 not applicable for this commercial-grade H temp-range part; for automotive applications, consult Analog Devices for Q-graded variants.
