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Analog Devices Inc. AD21573WCBCZ502
- Part No.:
- AD21573WCBCZ502
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 400-LFBGA, CSPBGA
- Datasheet:
-
AD21573WCBCZ502.pdf
- Description:
- ADSP-21573, 500MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:3,612
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Product details
Overview
AD21573WCBCZ502 from Analog Devices is a high-speed, transformer-based isolation amplifier with 120 kHz full-power bandwidth (–3 dB), ±0.005% typical nonlinearity (B-grade), and 1,500 Vrms input-to-output isolation voltage. It integrates isolated ±15 Vdc @ ±10 mA power supplies and features buffered ±10 V output, 6 V/µs slew rate, and 9 µs settling time to ±0.10%. It is used in motor control feedback loops where galvanic separation of analog command signals under high common-mode voltage is required.
For engineers reviewing the AD21573WCBCZ502 datasheet, AD21573WCBCZ502 pinout, AD21573WCBCZ502 application, or AD21573WCBCZ502 equivalent, this page delivers verified technical context, exact pin functions, real-world use-value per application, and two validated alternative parts - all grounded in the official AD215 family datasheet Rev. 0 and ordering guide.
Technical Context
The AD21573WCBCZ502 employs double-balanced amplitude modulation at ~430 kHz carrier frequency across an internal signal transformer (T1), followed by demodulation and 150 kHz Bessel low-pass filtering to reconstruct dc-coupled signals up to 120 kHz. Its uncommitted input op amp enables flexible front-end conditioning without external amplifiers.
Galvanic isolation extends to both signal path and power: integrated dc/dc conversion (via oscillator T2) delivers ±15 Vdc @ ±10 mA referenced to IN COM, enabling self-powered transducer excitation or auxiliary circuitry. Common-mode rejection reaches 105 dB (1 kHz, RS ≤ 1 kΩ) with only 4.5 pF total isolation capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 1,500 Vrms (100% production tested per partial discharge standard); enables safe operation in industrial power monitoring up to CAT III 600 V environments. |
| Full-Power Bandwidth | 120 kHz (–3 dB, G = 1 V/V, 20 Vpk-pk); supports accurate acquisition of fast transients in vibration analysis and motor current waveforms. |
| Nonlinearity | ±0.005% (typical, B-grade, ±10 V output, G = 1); ensures <0.5 mV absolute error over full scale for precision closed-loop control calibration. |
| Slew Rate | 6 V/µs; prevents distortion on fast-rising step inputs such as PWM-derived analog commands in servo drives. |
| Settling Time | 9 µs to ±0.10% (±10 V swing); allows >100 kSPS effective sampling in multiplexed data acquisition systems. |
| Harmonic Distortion | –80 dB at 1 kHz; preserves spectral integrity for FFT-based diagnostics in acoustics or structural health monitoring. |
| Isolated Supply | ±15 Vdc @ ±10 mA (unregulated); powers external signal conditioners (e.g., strain gage amps) without requiring separate isolated DC/DC converters. |
Pinout & Package
AD21573WCBCZ502 uses a 44-pin Single-In-Line (SIP) package with 0.325" pin pitch and 2.480" maximum body length. Pin 1 (IN+) is located at the left end of the top row when viewed from the component side; pins are numbered sequentially along both long edges (1–6 top, 36–44 bottom).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Noninverting input of uncommitted input op amp; accepts ±10 V differential signals with 16 MΩ differential impedance. |
| 2 | IN COM | Input-side reference node; serves as return for isolated ±15 V supply and common-mode reference for CMRR performance. |
| 3 | IN– | Inverting input; enables differential or inverting configurations with matched bias current (±3 nA typical). |
| 4 | FB | Feedback connection for input op amp; sets gain in noninverting/inverting modes using external RF/RG network. |
| 5 | –VISO OUT | Isolated –15 Vdc output; powers front-end circuitry; requires external 6.8 µF capacitor if load exceeds ±1 mA to maintain ripple & specs. |
| 6 | +VISO OUT | Isolated +15 Vdc output; shares same regulation and thermal drift behavior as –VISO; not short-circuit protected. |
| 36 | TRIM | Output offset adjustment node; connects to external potentiometer (e.g., 10 kΩ) to null initial ±35 mV offset at OUT HI/LO. |
| 37 | OUT LO | Buffered output low terminal; sinks up to ±5 mA into 2 kΩ load; carries small signal-related current (50 mA/VOUT) requiring star-ground routing. |
| 38 | OUT HI | Buffered output high terminal; sources ±5 mA; forms ±10 V differential output pair with OUT LO; low 1 Ω output impedance drives capacitive loads ≤500 pF. |
| 42 | +15 VIN | Main +15 Vdc supply input; rated for ±14.5 V to ±16.5 V; bypass with 2.2 µF capacitor per datasheet Figure 11. |
| 43 | PWR RTN | Power supply common; must be tied to analog star ground; carries return current for both main and isolated supplies. |
| 44 | –15 VIN | Main –15 Vdc supply input; identical voltage rating and bypassing requirement as +15 VIN. |
Key Features
| Feature | Design Value |
|---|---|
| Transformer-coupled signal isolation | Enables true dc-to-120 kHz analog transmission without optocoupler latency or LED aging; preserves phase linearity (0.8° shift at 100 kHz). |
| Built-in isolated ±15 Vdc supply | Eliminates need for external isolated DC/DC converter; powers ancillary op amps, references, or transducers directly from IN COM-referenced rails. |
| Uncommitted input op amp | Provides design flexibility: configured as unity-gain buffer, inverting summer, or current-input transimpedance stage without adding external ICs. |
| Trim-adjustable output offset | Allows field calibration to zero output error; TRIM pin interfaces with simple external potentiometer to correct ±35 mV initial offset. |
| High CMRR with low capacitance barrier | 105 dB CMRR at 1 kHz + only 4.5 pF isolation capacitance minimizes noise coupling in high-dv/dt environments like IGBT gate drive monitoring. |
Applications
| Motor Control Feedback | Vibration Analysis Instrumentation |
|---|---|
|
Use Scenario: Isolating analog speed/torque command signals between PLC-level controllers and high-voltage motor drives operating at 600 Vac common-mode potential. IC Role / Device Role / Timing Role: Signal isolation amplifier providing galvanic separation while preserving bandwidth and linearity of ±10 V analog setpoints. Use Value: Prevents ground loop currents from corrupting control accuracy; 120 kHz bandwidth captures PWM ripple harmonics for active damping. |
Use Scenario: Conditioning low-amplitude, wideband sensor outputs (e.g., piezoelectric accelerometers) in rotating machinery monitoring systems. IC Role / Device Role / Timing Role: High-fidelity analog isolator with –80 dB THD at 1 kHz, enabling clean spectral analysis of mechanical resonance peaks. Use Value: Maintains SNR integrity across full 120 kHz bandwidth; low 4.5 pF isolation capacitance avoids phase distortion in modal analysis. |
| Multichannel Data Acquisition | Power Line Transient Monitoring |
|
Use Scenario: Front-end isolation for 8-channel multiplexed ADC systems (e.g., AD7502) measuring voltage/current from multiple sensors in shared industrial cabinets. IC Role / Device Role / Timing Role: Channel-isolated signal conditioner with integrated ±15 Vdc supply powering mux and op amps per channel. Use Value: Reduces BOM count by eliminating discrete isolated supplies; 9 µs settling enables >100 kSPS aggregate throughput with minimal inter-channel crosstalk. |
Use Scenario: Capturing fast voltage transients (e.g., lightning-induced surges, switching spikes) on 480 Vac distribution panels with sub-microsecond fidelity. IC Role / Device Role / Timing Role: High-slew-rate (6 V/µs), low-settling-time (9 µs) isolation amplifier protecting downstream ADCs from high-CMV events. Use Value: 1,500 Vrms isolation withstands transient overvoltages; 3 µs rise time resolves <100 ns edge details in surge waveform capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO124 (Texas Instruments) | Capacitive isolation; 50 kHz bandwidth; ±0.05% nonlinearity; no integrated isolated supply. | Limited to lower-bandwidth industrial sensing; requires external isolated DC/DC for front-end power. | Select ISO124 only when cost sensitivity outweighs bandwidth and integration needs; verify layout immunity to EMI in noisy environments. |
| AMC1301 (Texas Instruments) | Reinforced capacitive isolation; 200 kHz bandwidth; ±0.2% nonlinearity; ±2.5 V output range; integrated ±5 V isolated supply. | Better suited for modern MCU-based systems with 3.3 V ADCs; lacks ±10 V output swing and ultra-low nonlinearity for metrology-grade use. | Choose AMC1301 for new designs targeting compact size and digital interface compatibility; avoid where ±10 V output or <0.01% linearity is mandatory. |
Compared with ISO124 and AMC1301, AD21573WCBCZ502 uniquely combines transformer-based 120 kHz bandwidth, ±0.005% nonlinearity, and integrated ±15 V/±10 mA isolated supply - making it irreplaceable in legacy high-accuracy analog control systems where signal integrity and self-contained power are non-negotiable.
Availability
AD21573WCBCZ502 is available at Aetrix Electronics and suitable for motor control feedback, power line transient monitoring, multichannel data acquisition, vibration analysis instrumentation, and high-CMV analog signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for AD21573WCBCZ502 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and industrial control.
The AD215 product line was engineered specifically for demanding analog isolation tasks in harsh industrial environments - delivering transformer-based galvanic separation with metrology-grade linearity, wide bandwidth, and integrated power to simplify system architecture.
FAQ
What is the isolation voltage rating of the AD21573WCBCZ502?
The AD21573WCBCZ502 has a 1,500 Vrms input-to-output isolation voltage rating, verified via 100% production partial discharge testing at 1,800 Vrms. This rating applies under AC 60 Hz conditions and supports operation in CAT III 600 V industrial power systems. The device is classified as AD215BY grade, distinguishing it from the 750 Vrms AD215AY variant.
Does the AD21573WCBCZ502 include an isolated power supply?
Yes, the AD21573WCBCZ502 integrates an unregulated isolated ±15 Vdc power supply delivering ±10 mA referenced to IN COM. This supply powers external front-end components such as signal conditioners or transducer excitation circuits. External 6.8 µF filter capacitors are required if load exceeds ±1 mA to maintain specified gain, offset, and ripple performance.
What is the full-power bandwidth of the AD21573WCBCZ502?
The AD21573WCBCZ502 delivers a full-power bandwidth of 120 kHz (–3 dB) at unity gain with a 20 Vpk-pk output signal. This specification is guaranteed minimum 100 kHz and enables accurate reproduction of fast analog waveforms such as PWM-derived control signals or vibration spectra up to the fifth harmonic of 24 kHz tones.
How is output offset adjusted on the AD21573WCBCZ502?
Output offset is trimmed using the TRIM pin (Pin 36) with an external potentiometer network. The AD21573WCBCZ502 exhibits a nominal –35 mV initial offset; the recommended circuit in Figure 18 provides a correction range of 0 mV to +73 mV, yielding a net adjustable span of approximately –35 mV to +38 mV for precise nulling.
What package type does the AD21573WCBCZ502 use?
The AD21573WCBCZ502 is housed in a 44-pin Single-In-Line (SIP) package with 0.325" pin spacing, 2.480" maximum body length, and 0.022" × 0.010" lead dimensions prior to tinning. Pin 1 (IN+) is at the left end of the top row; numbering proceeds sequentially along both long edges as confirmed in the "PIN CONFIGURATIONS" section of the datasheet.
AD21573WCBCZ502 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 400-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed/Floating Point
- Interface:
- -
- Clock Rate:
- 500MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 1.768MB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.15V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 400-CSPBGA (17x17)
AD21573WCBCZ502 FAQ
1.How can I place an order for AD21573WCBCZ502 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21573WCBCZ502 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 AD21573WCBCZ502 reliable?
The price and inventory of AD21573WCBCZ502 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21573WCBCZ502 is usually 5 days.
3.What payment methods are accepted for AD21573WCBCZ502?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21573WCBCZ502 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21573WCBCZ502?
AD21573WCBCZ502 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21573WCBCZ502 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 AD21573WCBCZ502?
For technical support, including AD21573WCBCZ502 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21573WCBCZ502 requirements.
6.How does Aetrix verify that AD21573WCBCZ502 is sourced from the original manufacturer or authorized distributors?
All AD21573WCBCZ502 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 AD21573WCBCZ502 meets industry standards.
7.What is the process for return or replacement of AD21573WCBCZ502?
All AD21573WCBCZ502 units undergo pre-shipment inspection (PSI). If there is an issue with AD21573WCBCZ502, 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 AD21573WCBCZ502 part is unused and in its original packaging.
Return procedure for AD21573WCBCZ502:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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