AMC1336DWVR - ±1V Reinforced Isolated Delta-Sigma Modulator | TI
MPN： AMC1336DWVR ✓ 啟用中AMC1336DWVR 概覽
An isolated delta-sigma modulator is a type of analog-to-digital converter front end that oversamples an input signal and transmits a high-rate bitstream across a galvanic isolation barrier. Within the data-conversion hierarchy (isolated modulator -> ADC front end -> data acquisition IC -> signal chain), these devices allow voltage or shunt measurements to be made at high common-mode potentials while the digital controller remains on the safe side of the barrier. The AMC1336 belongs to TI's family of reinforced isolated amplifiers and modulators used across industrial, motor-drive, and energy infrastructure.
Key features include the ±1-V input range optimized for direct resistor-divider voltage sensing, a capacitive isolation barrier highly resistant to magnetic interference, and certification for reinforced isolation up to 8000 VPEAK per DIN VDE V 0884-11 and UL1577. The 16-bit resolution at 82 kSPS output data rate suits feedback loops in power conversion.
Technically, the device uses a second-order ΔΣ modulator on the high-voltage side and transmits the bitstream across the capacitive barrier, which rejects magnetic fields better than transformer-based isolation - important in inverter and motor-drive environments with high dV/dt and dI/dt.
Typical applications include DC bus voltage sensing in solar inverters and motor drives, grid-tied energy-storage monitoring, and isolated voltage feedback in AC/DC power supplies.
A key design consideration: the modulator bitstream must be decimated by an external digital sinc filter or on-chip filter of an MCU such as the SDFM peripheral - budget processing or peripheral resources accordingly.
This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 AMC1336DWVR — 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： AMC1336DWVR （相同外形與佔位） — 差異在於 Input Voltage Range, Operating Temperature, Output Data Rate, Package.
AMC1302DWVR
✅ 直接替換📋 參考替代品（不在目錄中）
AMC1301DWVR
✅ 直接替換📋 參考替代品（不在目錄中）
AMC1300BDWVR
✅ 直接替換📋 參考替代品（不在目錄中）
AMC1306M25DWVR
✅ 直接替換聯絡詢價
查看資料表 →AMC1305DWVR
✅ 直接替換📋 參考替代品（不在目錄中）
AMC1311DWVR
✅ 直接替換📋 參考替代品（不在目錄中）
AMC1336DWVR 最大額定值與電氣特性
| Product Type | Reinforced isolated delta-sigma modulator |
| Input Type | Differential |
| 輸入電壓範圍 | ±1 V |
| 解析度 | 16 bit |
| Output Data Rate | 82 kSPS |
| Isolation Type | Capacitive double isolation barrier |
| Reinforced Isolation Rating | 8000 VPEAK |
| Isolation Standards | DIN VDE V 0884-11, UL1577 |
| Magnetic Interference Immunity | High (capacitive barrier) |
| Output Interface | Digital bitstream (serial) |
| 工作溫度 | -40°C to +125°C |
| 封裝 | 8-pin SOIC (DWV), wide-body |
| 安裝類型 | Surface Mount |
| Application | Precision voltage sensing |
AMC1336DWVR 腳位配置
| 腳位 1 | VDD1 — High-side supply voltage |
| 腳位 2 | GND1 — High-side ground reference |
| 腳位 3 | INP — Non-inverting differential input |
| 腳位 4 | INN — Inverting differential input |
| 腳位 5 | GND2 — Low-side ground reference |
| 腳位 6 | NC — Not connected (per datasheet); maintains creepage |
| 腳位 7 | VDD2 — Low-side supply voltage |
| 腳位 8 | OUT — Delta-sigma bitstream output |
典型應用
AMC1336DWVR 適用於 6 應用s: Solar Inverter DC Bus Voltage Sensing, Motor Drive DC Link and Phase Voltage Monitoring, Energy Storage System (ESS) Battery Voltage Monitoring, AC/DC Power Supply Output Voltage Feedback, Grid-Tied Inverter Anti-Islanding and Grid Voltage Detection, Industrial Test and Measurement Isolated Probes.
Solar Inverter DC Bus Voltage Sensing
The AMC1336DWVR's ±1-V input range is a direct match for resistor-divider outputs in photovoltaic inverter DC bus monitoring, where a string of high-value resistors scales a 400-V to 1000-V bus down to the measurement window. The 8000-VPEAK reinforced isolation per DIN VDE V 0884-11 satisfies insulation coordination between the live bus and the controller. Placed across the divider with its high-side supply derived from an isolated bias supply, the modulator transmits a 16-bit bitstream at 82 kSPS across the capacitive barrier; the low dV/dt sensitivity and magnetic immunity of the capacitive barrier keep measurements clean even next to switching power stages. A sinc filter in the MCU decimates the stream for MPPT and protection loops.
推薦
Motor Drive DC Link and Phase Voltage Monitoring
In industrial motor drives, DC-link voltage feedback must remain accurate under high dV/dt and dI/dt conditions generated by IGBT or SiC switching. The AMC1336DWVR's capacitive double isolation barrier is highly resistant to magnetic interference, unlike transformer-coupled alternatives whose flux-coupled outputs can corrupt under large circulating currents. The ±1-V window accepts the divider output from the DC link directly, and the -40°C to +125°C operating range covers drive-enclosure environments. The 82-kSPS bitstream provides fast fault detection for overvoltage and regenerative-braking conditions while the reinforced isolation protects the low-voltage control side, and the 16-bit resolution resolves bus ripple for control-loop stability analysis.
推薦
Energy Storage System (ESS) Battery Voltage Monitoring
Grid-scale and commercial energy-storage systems require precise, isolated measurement of battery stack voltages spanning hundreds of volts. The AMC1336DWVR measures the divider output from each stack within its ±1-V window and transmits the 16-bit data across 8000-VPEAK reinforced isolation to the supervisory controller. The -40°C to +125°C range accommodates outdoor enclosures and thermal-swings inherent to battery installations, while the capacitive barrier's magnetic immunity is valuable near the high current paths of charge and discharge circuits. Its 82-kSPS rate supports both slow SOC estimation and fast overvoltage protection, and the same footprint accommodates family members with different input ranges as stack architectures evolve.
推薦
AC/DC Power Supply Output Voltage Feedback
High-power AC/DC supplies and telecom rectifiers use isolated voltage feedback for regulation and protection. The AMC1336DWVR's ±1-V input accepts the scaled output-bus signal, and its 16-bit resolution at 82 kSPS gives the digital controller a high-fidelity feedback signal for constant-voltage and constant-power loops, better resolution than typical optocoupler-based feedback which drifts with temperature and aging. The 8000-VPEAK reinforced isolation handles the primary-to-secondary insulation requirement in offline designs, and the capacitive barrier tolerates the fast switching transients of flyback and LLC topologies. Output data rate is ample for 100-kHz-class loops when paired with sinc decimation in the digital control IC.
推薦
Grid-Tied Inverter Anti-Islanding and Grid Voltage Detection
Grid-connected inverters must continuously measure grid and DC bus voltages for anti-islanding protection per grid codes. The AMC1336DWVR's ±1-V input accepts grid divider signals, and its 82-kSPS data rate captures grid disturbances fast enough for protection relaying functions, while 16-bit resolution detects small sags and surges. The reinforced capacitive isolation barrier certified to 8000 VPEAK meets the safety insulation required between the utility connection and user-accessible control electronics, and its immunity to magnetic interference keeps readings stable amid the transformer and reactor fields typical of inverter installations. The bitstream output integrates naturally with MCU SDFM peripherals common in inverter controllers.
推薦
Industrial Test and Measurement Isolated Probes
Bench and rack instrumentation measuring high-voltage nodes needs isolated, accurate front ends. The AMC1336DWVR forms the core of an isolated voltage-probe input: a precision divider scales the unknown into the ±1-V window, and the 8000-VPEAK reinforced barrier plus capacitive coupling gives a clean, magnetically immune channel suitable for use near magnetic components under test. The 16-bit, 82-kSPS performance suits DMM-style precision measurement and low-bandwidth scope channels, and the -40°C to +125°C range allows use in environmental test chambers. The DWV wide-body package's generous creepage also aids safety compliance in user-facing instruments.
推薦
推薦產品摘要
工程參考資料，適用於 AMC1336DWVR — 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 | AMC1302DWVR | AMC1301DWVR | AMC1300BDWVR | AMC1306M25DWVR |
|---|---|---|---|---|---|
| Package | 8-SOIC (DWV) | 8-SOIC (DWV) - same | 8-SOIC (DWV) - same | 8-SOIC (DWV) - same | 8-SOIC (DWV) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | ±1 V | ±2 V | ±250 mV | ±250 mV | ±250 mV |
| Output Type | Delta-sigma bitstream | Delta-sigma bitstream | Analog (amplifier) | Analog (amplifier) | Delta-sigma bitstream |
| Reinforced Isolation Rating | 8000 VPEAK | 7000 VPEAK | 7071 VPEAK | 7071 VPEAK | 7071 VPEAK |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C |
| Application Focus | Voltage sensing (divider) | Voltage sensing (divider) | Shunt current sensing | Shunt current sensing | Shunt current sensing |
主要差異化特點
- Wider ±1-V input for direct divider sensing (對比AMC1301DWVR)
- Higher reinforced isolation rating (對比AMC1302DWVR)
- Digital bitstream output for digital control loops (對比AMC1300BDWVR)
- Trade-off: requires external digital sinc filtering (對比AMC1311DWVR)
設計說明
Preserve the isolation barrier on the PCB: the DWV wide-body package requires a footprint with a cutout or generous slot under the IC to maintain creepage and clearance between pin group 1-4 (high side) and pin group 5-8 (low side). Do not route any low-side trace under the high-side region of the package. Follow the TI datasheet's recommended land pattern exactly; reducing the slot can invalidate the 8000-VPEAK reinforced isolation certification in the end equipment.
The AMC1336 outputs a raw delta-sigma bitstream, not a filtered value, so the low-side controller must implement a sinc filter (e.g., MCU SDFM module or FPGA decimator). Choose the decimation ratio to trade noise bandwidth against latency: OSR=32 at 82 kSPS gives roughly 20-kHz effective bandwidth for protection loops, while higher OSR improves resolution for DC measurement. Keep the bitstream trace short and series-terminate if the run exceeds a few centimeters to control ringing at the high modulator clock rate.
Do not exceed the ±1-V differential input range: unlike amplifier-based parts, modulator inputs can clip and corrupt the bitstream during transients. Scale the resistor divider so maximum bus transients (including regenerative events) stay within range, and verify divider resistor power rating and voltage coefficient for accuracy over the bus lifetime. Also budget the high-side bias supply - it must be isolated to the same reinforced rating, typically via a dedicated isolated supply IC or transformer driver.
Estimated: both high-side and low-side supplies need local 100-nF ceramic decoupling placed within 2 mm of the VDD1 and VDD2 pins, plus 10-uF bulk. The isolated bias for the high side should provide low ripple, since supply noise can couple into the modulator reference and degrade the effective 16-bit resolution - an LC filter on the isolated supply output is a common refinement in inverter designs.
合規資訊
RoHS and lead-free status per distributor listings for current TI production. Isolation certifications per datasheet: DIN VDE V 0884-11 and UL1577 for 8000 VPEAK reinforced isolation.
