My Inquiry
My Account
Analog Devices Inc. ADUM4195-1WBRIZ-R7
- Part No.:
- ADUM4195-1WBRIZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Special Purpose Amplifiers
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4195-1WBRIZ-R7.pdf
- Description:
- HIGH STABILITY ISOLATED ERROR AM
- Quantity:
- Payment:
- Shipping:
Inventory:954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM4195-1WBRIZ-R7 from Analog Devices is an isolated amplifier with fixed gain = 1, single-ended output, and galvanic isolation up to 5000 Vrms. It delivers ±5 mV max offset error at 25°C, ±0.5% max gain error, and 210 kHz bandwidth for precision DC bus voltage sensing in high-voltage power conversion systems.
For engineers reviewing the ADUM4195-1WBRIZ-R7 datasheet, ADUM4195-1WBRIZ-R7 pinout, ADUM4195-1WBRIZ-R7 application, or ADUM4195-1WBRIZ-R7 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, automotive-grade safety certifications, and two confirmed alternative parts for isolated voltage monitoring.
Technical Context
The ADUM4195-1WBRIZ-R7 uses iCoupler® technology with a PWM-based modulation/demodulation architecture across a coreless transformer. Its input stage features high-impedance (>1 GΩ) op-amp buffering, while the output reconstructs VIN with unity gain using internal reference and low-pass filtering.
It supports dual 4.5 V–5.5 V supplies (VDD1/VDD2), includes active-high shutdown (SHTD) with internal 100 kΩ pull-down, and enforces DC correctness via periodic refresh pulses. Common-mode transient immunity is rated at 100–150 kV/µs, and magnetic field immunity withstands ≤8 kGs at 1 MHz without output corruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 Vrms for 1 minute - enables safe measurement of ≥1000 VDC bus voltages in industrial and automotive inverters. |
| Fixed Gain | 1 - eliminates external gain-setting components and simplifies calibration in voltage-divider-based sensing circuits. |
| Offset Error | ±5 mV max at 25°C - contributes ≤0.2% error in 2.5 V input range, critical for accurate battery or DC-link monitoring. |
| Bandwidth | 210 kHz - supports fast transient response in switching power supplies and motor drives without phase lag distortion. |
| CMTI | 100–150 kV/µs - maintains signal integrity during rapid common-mode noise events typical in SiC/GaN-based converters. |
| Operating Temp | −40°C to +125°C ambient - qualified per AEC-Q100, suitable for under-hood automotive on-board chargers and traction inverters. |
| Supply Range | VDD1 & VDD2: 4.5 V–5.5 V - compatible with standard 5 V rail systems and tolerant of brown-out conditions down to 4.0 V UVLO threshold. |
Pinout & Package
ADUM4195-1WBRIZ-R7 is housed in an 8-lead wide-body SOIC package (RI-8-1) with increased creepage (8.3 mm) and reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDD2 | Side 2 supply | Power for input-side circuitry; requires 0.1 µF + 1 µF decoupling to GND2 to suppress high-frequency noise. |
| 2 VIN | Differential-input buffer node | High-impedance (1 GΩ) analog input for direct connection to voltage dividers; accepts 0.25–4.3 V range. |
| 3 SHTD | Active-high shutdown control | Drives device into high-Z output state when asserted; internal 100 kΩ pull-down prevents floating. |
| 4 GND2 | Input-side ground reference | Isolated return path for VIN and VDD2; must be physically separated from GND1 on PCB. |
| 5 GND1 | Output-side ground reference | Return for VOUT and VDD1; forms galvanically isolated barrier with GND2. |
| 6 NC | No-connect terminal | Must be tied to GND1 or VDD1; floating condition risks ESD damage or latch-up. |
| 7 VOUT | Analog output | Single-ended, unity-gain replica of VIN; drives 10 kΩ load with <2.4 µs rise/fall time and 3.5 µs delay. |
| 8 VDD1 | Side 1 supply | Power for output-stage circuitry; requires 0.1 µF + 1 µF decoupling to GND1 for stable reconstruction. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | VIORM = 1401 Vpeak, certified to UL 1577, IEC/EN/CSA 62368-1, IEC/CSA 61010-1, IEC/CSA 60601-1, and CQC GB 4943.1 - meets medical and industrial safety standards. |
| Automotive Qualification | AEC-Q100 Grade 1 qualified - validated for operation from −40°C to +125°C ambient with full reliability testing for automotive on-board chargers and inverters. |
| Low Drift Performance | ±130 µV/°C offset drift and ±42 ppm/°C gain drift - ensures stable accuracy over temperature without recalibration in battery management systems. |
| High CM Noise Immunity | 100–150 kV/µs CMTI - rejects fast transients from SiC/GaN switches, preventing false readings in high-power motor drives. |
| Low-Power Operation | IDD1 = 4.1–4.9 mA and IDD2 = 5.9–7.3 mA - reduces thermal load in space-constrained automotive ECUs and industrial controllers. |
Applications
| DC Bus Voltage Monitoring | Inverter Phase Current Sensing |
|---|---|
Use Scenario: Real-time monitoring of 400–1000 VDC battery or DC-link voltage in EV on-board chargers and traction inverters. IC Role / Device Role / Timing Role: Isolated amplifier providing galvanically separated, unity-gain analog replication of scaled bus voltage for MCU ADC input. Use Value: Enables accurate SOC estimation and overvoltage protection without compromising system safety or requiring optocoupler recalibration over lifetime. |
Use Scenario: High-side current sensing in three-phase motor drives using shunt resistors placed on high-voltage DC rails. IC Role / Device Role / Timing Role: Isolated amplifier capturing voltage drop across shunt resistor and delivering linear, low-drift replica to isolated controller side. Use Value: Supports precise torque control and fault detection with <2.4 µs signal propagation, meeting ISO 26262 ASIL-B timing requirements. |
| Industrial DC-DC Converter Feedback | Renewable Energy Inverter Monitoring |
Use Scenario: Secondary-side voltage feedback in isolated 1–3 kW telecom or server PSUs where primary-side regulation requires precise isolated sensing. IC Role / Device Role / Timing Role: Isolated amplifier replacing optocouplers in voltage feedback loop to improve long-term stability and temperature performance. Use Value: Eliminates current transfer ratio (CTR) degradation, enabling consistent regulation accuracy over 10+ year service life in data center infrastructure. |
Use Scenario: String voltage monitoring in solar PV inverters operating at up to 1500 VDC with high common-mode noise from MPPT switching. IC Role / Device Role / Timing Role: Isolated amplifier interfacing with high-impedance voltage dividers to deliver clean, noise-immune analog signals to system controller. Use Value: Maintains ±0.5% gain accuracy despite 150 kV/µs transients, ensuring reliable anti-islanding protection and grid compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMC1301DWVR | Higher bandwidth (210 kHz vs. 210 kHz same), but lower CMTI (100 kV/µs vs. 150 kV/µs max), no AEC-Q100 qualification. | Targeted at industrial motor drives; lacks automotive certification and reinforced insulation for medical/automotive 2-MOPP designs. | Choose AMC1301DWVR only if automotive qualification and 2-MOPP are not required, and cost is prioritized over maximum noise immunity. |
| ISO224BDWR | Higher gain error (±0.75% vs. ±0.5%), wider offset error (±10 mV vs. ±5 mV), and narrower input range (0.3–4.2 V vs. 0.25–4.3 V). | Designed for industrial current sensing; less suited for precision DC bus voltage monitoring where low offset dominates error budget. | Select ISO224BDWR only when higher output drive capability (20 mA) is needed, accepting reduced DC accuracy in voltage-sensing roles. |
Compared with AMC1301DWVR and ISO224BDWR, ADUM4195-1WBRIZ-R7 offers superior offset accuracy, AEC-Q100 qualification, and reinforced insulation-making it the preferred choice for automotive and safety-critical industrial voltage monitoring where long-term stability and regulatory compliance are mandatory.
Availability
ADUM4195-1WBRIZ-R7 is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC-DC converters, and renewable energy inverters requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for ADUM4195-1WBRIZ-R7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The ADUM4195-1WBRIZ-R7 belongs to the iCoupler® isolated amplifier product line, designed specifically for high-accuracy, high-CMTI, and safety-certified voltage sensing in next-generation power electronics.
FAQ
What is the isolation rating of ADUM4195-1WBRIZ-R7 and which safety standards does it meet?
The ADUM4195-1WBRIZ-R7 provides 5000 Vrms isolation for 1 minute and is certified to UL 1577, IEC/EN/CSA 62368-1, IEC/CSA 61010-1, IEC/CSA 60601-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17). Its VIORM is 1401 Vpeak, supporting reinforced insulation for 2-MOPP medical and automotive applications. These ratings are verified per production test protocols in the official datasheet Rev. C.
Does ADUM4195-1WBRIZ-R7 support automotive applications, and what is its qualification status?
Yes, ADUM4195-1WBRIZ-R7 is explicitly qualified per AEC-Q100 Grade 1 for automotive use, with guaranteed operation from −40°C to +125°C ambient and junction temperatures up to 150°C. The "W" in the part number denotes automotive qualification, and the device undergoes controlled manufacturing and extended reliability testing per automotive requirements. This makes ADUM4195-1WBRIZ-R7 suitable for on-board chargers, traction inverters, and battery management systems.
What is the function of Pin 6 (NC) on ADUM4195-1WBRIZ-R7, and how should it be handled?
Pin 6 on ADUM4195-1WBRIZ-R7 is designated NC (No Connect) and must not be left floating. Per the datasheet Rev. C, Pin 6 must be connected to either GND1 or VDD1 to prevent ESD susceptibility and potential latch-up. Leaving it unconnected violates layout requirements and may compromise long-term reliability. This requirement is specific to the ADUM4195-1WBRIZ-R7's internal structure and differs from other variants in the family.
How does the shutdown (SHTD) pin operate on ADUM4195-1WBRIZ-R7, and what is its logic threshold?
The SHTD pin on ADUM4195-1WBRIZ-R7 is an active-high input with an internal 100 kΩ pull-down resistor. It asserts shutdown when driven above 0.7 × VDD2 and releases shutdown when below 0.3 × VDD2. During shutdown, the output enters high-impedance state. The pin must be actively driven or hard-connected to GND2 - floating is prohibited. This behavior is confirmed in Table 10 and Figure 3 of the ADUM4195-1 datasheet Rev. C.
Can ADUM4195-1WBRIZ-R7 be used for current sensing, and what are its limitations in that role?
ADUM4195-1WBRIZ-R7 can be used for current sensing via shunt resistors, but it is optimized for voltage sensing. Its input is single-ended and high-impedance (>1 GΩ), making it ideal for buffered voltage divider interfaces-not differential current sensing. For true current sensing, dedicated isolated amplifiers like AMC1301 or ISO224 offer better common-mode rejection and input topology. Using ADUM4195-1WBRIZ-R7 for current sensing requires careful layout to avoid ground loop errors and limits accuracy due to lack of differential input.
ADUM4195-1WBRIZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Isolator, Error Amplifier
- Applications:
- -
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 8-SOIC-IC
ADUM4195-1WBRIZ-R7 FAQ
1.How can I place an order for ADUM4195-1WBRIZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4195-1WBRIZ-R7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADUM4195-1WBRIZ-R7 reliable?
The price and inventory of ADUM4195-1WBRIZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4195-1WBRIZ-R7 is usually 5 days.
3.What payment methods are accepted for ADUM4195-1WBRIZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4195-1WBRIZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4195-1WBRIZ-R7?
ADUM4195-1WBRIZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4195-1WBRIZ-R7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADUM4195-1WBRIZ-R7?
For technical support, including ADUM4195-1WBRIZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4195-1WBRIZ-R7 requirements.
6.How does Aetrix verify that ADUM4195-1WBRIZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADUM4195-1WBRIZ-R7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADUM4195-1WBRIZ-R7 meets industry standards.
7.What is the process for return or replacement of ADUM4195-1WBRIZ-R7?
All ADUM4195-1WBRIZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4195-1WBRIZ-R7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADUM4195-1WBRIZ-R7 part is unused and in its original packaging.
Return procedure for ADUM4195-1WBRIZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4195-1WBRIZ-R7 Tags
-
TSM103WIDT
STMicroelectronics
-
LM392M/NOPB
Texas Instruments
-
MCP6S93T-E/UN
Microchip Technology
-
INA137UA/2K5
Texas Instruments
-
INA134UA/2K5
Texas Instruments
-
TS34118CS28 RDG
Taiwan Semiconductor Corporation
-
SI8920BC-IPR
Skyworks Solutions Inc.
-
ADUM3190ARQZ-RL7
Analog Devices Inc.
-
ADUM3190ARQZ
Analog Devices Inc.
-
AMC1311BDWVR
Texas Instruments
-
AMC1350DWVR
Texas Instruments
-
ADUM3190SRQZ-RL7
Analog Devices Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
