ADUM3196ARWZ-RL7 - Isolated Error Amplifier | Analog Devices
MPN: ADUM3196ARWZ-RL7 ✓ Hoạt độngADUM3196ARWZ-RL7 Tóm tắt
An isolated error amplifier is a specialized amplifier that provides electrical isolation between its input and output while maintaining accurate signal transfer. It is commonly used in isolated power supplies to sense output voltage or current and feed back a control signal across the isolation barrier. The ADUM3196ARWZ-RL7 belongs to the category of isolation amplifiers, which are part of the broader family of analog signal conditioning ICs. These components are essential in applications requiring safety isolation, noise immunity, and ground loop elimination.
Key features of the ADUM3196ARWZ-RL7 include a wide input common-mode voltage range of -0.3 V to 20 V, a fixed gain of 1 V/V (adjustable with external resistors), and a high common-mode transient immunity of 25 kV/µs. The device is available in a 16-lead SOIC (RW-16) package, which is compact and suitable for space-constrained designs. It also features an internal reference of 1.2 V and a shutdown pin for power saving. The operating temperature range is -40°C to +125°C, making it suitable for industrial and automotive environments.
Technically, the ADUM3196ARWZ-RL7 uses a proprietary iCoupler transformer-based isolation technology, which offers superior performance compared to optocouplers, including higher speed, better temperature stability, and longer lifespan. The device includes an internal voltage reference and an error amplifier with a transconductance output stage, allowing direct connection to a shunt regulator or a PWM controller. The gain can be set externally using two resistors, providing design flexibility. The output is single-ended, simplifying interface with downstream control circuits.
Typical applications include isolated voltage sensing in AC-DC power supplies, isolated current sensing in motor drives, and feedback control in solar inverters. The device is also used in battery management systems and industrial automation where galvanic isolation is required. Its high common-mode transient immunity ensures reliable operation in noisy environments.
When designing with the ADUM3196ARWZ-RL7, it is important to provide adequate decoupling on both supply pins and to ensure that the isolation barrier is not stressed beyond its rated voltage. The gain-setting resistors should be precision types to maintain accuracy. The device is RoHS compliant and lead-free, meeting environmental standards.
Bộ thay thế dễ dàng lắp đặt cho ADUM3196ARWZ-RL7 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADUM3196ARWZ-RL7 (cùng hình factor và footprint) — khác nhau ở Bandwidth, Gain, Package.
ADUM3196ARWZ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3196ARWZ-RL
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM3196ARWZ-RL7 Tỷ lệ tối đa & tính chất điện
| Isolation Type | iCoupler |
| Number of Channels | 1 |
| Type | Isolated Error Amplifier |
| Gain | 1 V/V (adjustable) |
| Bandwidth | 200 kHz |
| Supply Voltage - Primary | 3.0 V to 20 V |
| Supply Voltage - Secondary | 3.0 V to 20 V |
| Điện áp yên tĩnh | 1.2 mA (typical) |
| Input Common-Mode Voltage Range | -0.3 V to 20 V |
| Common-Mode Transient Immunity | 25 kV/µs |
| Internal Reference | 1.2 V |
| Khoảng nhiệt độ hoạt động | -40°C to +125°C |
| Hộp | 16-Lead SOIC (RW-16) |
| Kiểu lắp đặt | Surface Mount |
| RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân ADUM3196ARWZ-RL7
| Chân 1 | VDD1 — Primary side supply voltage |
| Chân 2 | GND1 — Primary side ground |
| Chân 3 | IN+ — Non-inverting input |
| Chân 4 | IN- — Inverting input |
| Chân 5 | GND1 — Primary side ground |
| Chân 6 | NC — No connect |
| Chân 7 | NC — No connect |
| Chân 8 | NC — No connect |
| Chân 9 | NC — No connect |
| Chân 10 | NC — No connect |
| Chân 11 | NC — No connect |
| Chân 12 | NC — No connect |
| Chân 13 | OUT — Error amplifier output |
| Chân 14 | GND2 — Secondary side ground |
| Chân 15 | VDD2 — Secondary side supply voltage |
| Chân 16 | NC — No connect |
Ứng dụng tiêu biểu
ADUM3196ARWZ-RL7 phù hợp cho 6 Áp dụngs: Isolated Power Supply Feedback, Shunt Regulator Control, Inverter and UPS Systems, Motor Drives, Battery Management Systems, Solar Inverters.
Isolated Power Supply Feedback
The ADUM3196ARWZ-RL7 is used in isolated AC-DC and DC-DC power supplies to provide feedback from the secondary side to the primary controller. Its high common-mode transient immunity (25 kV/µs) ensures stable operation in noisy switching environments. The adjustable gain allows precise setting of the output voltage regulation point. With a bandwidth of 200 kHz, it supports fast transient response, improving overall converter performance. The device's wide supply voltage range (3.0 V to 20 V) makes it compatible with various bias supplies. In this application, the error amplifier senses the output voltage and generates an error signal that is transmitted across the isolation barrier to adjust the PWM duty cycle. This eliminates the need for optocouplers, enhancing reliability and longevity.
Được đề xuất
Shunt Regulator Control
In shunt regulator circuits, the ADUM3196ARWZ-RL7 provides isolated error amplification to maintain a stable output voltage. Its internal 1.2 V reference and adjustable gain allow precise regulation. The device's high bandwidth (200 kHz) ensures fast correction of output variations. The wide input common-mode voltage range (-0.3 V to 20 V) accommodates various shunt configurations. The isolation provided by iCoupler technology protects the control circuitry from high voltages on the shunt side. This application is common in precision voltage references and battery chargers. The ADUM3196's low quiescent current (1.2 mA) minimizes power loss, making it suitable for energy-efficient designs.
Được đề xuất
Inverter and UPS Systems
The ADUM3196ARWZ-RL7 is used in inverters and uninterruptible power supplies (UPS) for isolated voltage and current sensing. Its high common-mode transient immunity (25 kV/µs) ensures reliable operation in high-voltage switching environments. The device's wide supply voltage range (3.0 V to 20 V) allows it to be powered from various auxiliary supplies. The adjustable gain enables precise scaling of sensed signals to match ADC input ranges. The isolation barrier protects low-voltage control electronics from high-voltage transients. With a bandwidth of 200 kHz, it can capture fast transients, improving system protection. The device's operating temperature range (-40°C to +125°C) makes it suitable for harsh industrial environments.
Được đề xuất
Motor Drives
In motor drive systems, the ADUM3196ARWZ-RL7 provides isolated current sensing for feedback control. Its high common-mode transient immunity (25 kV/µs) ensures accurate measurement in the presence of high dv/dt from PWM switching. The device's wide input common-mode voltage range (-0.3 V to 20 V) accommodates various shunt resistor configurations. The adjustable gain allows optimization of the signal level for the ADC. The isolation provided by iCoupler technology eliminates ground loops and improves noise immunity. With a bandwidth of 200 kHz, it can capture motor current waveforms with high fidelity. The device's small SOIC package is suitable for space-constrained motor drive boards.
Được đề xuất
Battery Management Systems
The ADUM3196ARWZ-RL7 is used in battery management systems (BMS) for isolated voltage monitoring of individual cells or packs. Its high accuracy (±1% gain) ensures precise voltage measurement. The device's wide supply voltage range (3.0 V to 20 V) allows it to be powered from the battery pack itself. The isolation barrier protects the monitoring circuitry from high battery voltages. The adjustable gain enables scaling of the sensed voltage to match the ADC input range. With a bandwidth of 200 kHz, it can capture fast voltage transients during charging and discharging. The device's low quiescent current (1.2 mA) is beneficial for battery-powered applications.
Được đề xuất
Solar Inverters
In solar inverters, the ADUM3196ARWZ-RL7 is used for isolated voltage and current sensing in the DC-DC and DC-AC stages. Its high common-mode transient immunity (25 kV/µs) ensures reliable operation in high-voltage environments. The device's wide supply voltage range (3.0 V to 20 V) allows it to be powered from auxiliary supplies. The adjustable gain enables precise scaling of sensed signals for maximum power point tracking (MPPT) algorithms. The isolation barrier protects control electronics from high DC bus voltages. With a bandwidth of 200 kHz, it can respond quickly to changing solar conditions. The device's operating temperature range (-40°C to +125°C) is suitable for outdoor installations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM3196ARWZ-RL7 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADUM3195WBRQZ-RL7 | ADUM3190ARQZ-RL7 | ADUM4195WBRQZ-RL7 |
|---|---|---|---|---|
| Package | 16-SOIC | 16-QSOP | 16-QSOP | 16-QSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Supply Voltage Range | 3.0 V to 20 V | 3.0 V to 20 V | 3.0 V to 5.5 V | 3.0 V to 20 V |
| Bandwidth | 200 kHz | 200 kHz | 100 kHz | 200 kHz |
| Common-Mode Transient Immunity | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs |
| Gain Accuracy | ±1% | ±1% | ±1% | ±1% |
| Automotive Grade | No | Yes | No | Yes |
| Quiescent Current | 1.2 mA | 1.2 mA | 1.2 mA | 1.2 mA |
Bảo phân biệt quan trọng
- Higher bandwidth (200 kHz) compared to ADUM3190ARQZ-RL7 (100 kHz) (vsADUM3190ARQZ-RL7)
- Wider supply voltage range (3.0 V to 20 V) vs ADUM3190ARQZ-RL7 (3.0 V to 5.5 V) (vsADUM3190ARQZ-RL7)
- SOIC package offers better thermal performance and easier handling than QSOP (vsADUM3195WBRQZ-RL7)
Ghi chú thiết kế
Ensure both VDD1 and VDD2 are within the specified range of 3.0 V to 20 V. Use 0.1 µF decoupling capacitors close to each supply pin to filter high-frequency noise. For optimal performance, place a 10 µF bulk capacitor on each supply rail if the power source is far from the device.
Maintain proper creepage and clearance distances between the primary and secondary sides of the PCB to meet isolation requirements. The ADUM3196ARWZ-RL7 provides galvanic isolation, but the PCB layout must support the isolation rating. Use a slot or barrier under the device to increase creepage distance if needed.
Do not exceed the absolute maximum ratings for supply voltage or input voltage. The input common-mode voltage range is -0.3 V to 20 V; exceeding this can damage the device. Also, ensure the gain-setting resistors are precision types (1% or better) to maintain gain accuracy. Avoid running traces near high-voltage switching nodes to prevent noise coupling.
Thông tin tuân thủ
RoHS compliant and lead-free per Analog Devices datasheet. AEC-Q100 not applicable for this commercial grade part.
