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Analog Devices Inc. ADMW1001BCPZ-RL7
- Part No.:
- ADMW1001BCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Sensor and Detector Interfaces
- Package:
- 48-WFQFN Exposed Pad, CSP
- Datasheet:
-
ADMW1001BCPZ-RL7.pdf
- Description:
- MEASUREWARE ENVIRONMENTAL CONDIT
- Quantity:
- Payment:
- Shipping:
Inventory:796
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Product details
Overview
ADMW1001BCPZ-RL7 from Analog Devices is a highly integrated, firmware-upgradeable condition monitoring IC featuring dual 24-bit Σ-Δ ADCs, programmable excitation current sources (10 μA to 1 mA), and embedded sensor compensation for RTDs (PT100/1000), thermocouples (J/K/T), and Wheatstone bridges. It operates from a single 3.3 V supply, supports simultaneous 50 Hz/60 Hz antialiasing rejection, and delivers <1 μV RMS noise at gain = 8 and 5 Hz output rate - enabling high-accuracy industrial asset health monitoring.
For engineers reviewing the ADMW1001BCPZ-RL7 datasheet, ADMW1001BCPZ-RL7 pinout, ADMW1001BCPZ-RL7 application, or ADMW1001BCPZ-RL7 equivalent, key selection considerations include its dual universal analog input channels with per-channel excitation and cold-junction compensation, on-chip FIFO and sequencer for autonomous multi-sensor cycling, SPI master/slave interfaces for I²C/SPI sensor integration, and field-upgradable MeasureWare firmware supporting custom lookup tables and linearization.
Technical Context
The ADMW1001BCPZ-RL7 integrates two independent measurement signal chains, each comprising a programmable gain amplifier (gain 1–128), 24-bit Σ-Δ ADC, digital filter with simultaneous 50/60 Hz rejection, and configurable excitation current source. Its embedded sequencer enables autonomous cycling across up to four sensor types (RTD, thermocouple, bridge, I²C/SPI) with per-channel settling time, gain, and linearization settings.
It features dual SPI interfaces: one slave interface (CS0/MOSI0/MISO0/SCLK0) for host communication and one master interface (CS1/MOSI1/MISO1/SCLK1) for driving external digital sensors, plus an I²C interface (SDA/SCL) supporting up to two sensors. All analog inputs support buffered/unbuffered modes, and diagnostics include open-wire, short-circuit, and LUT validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 24-bit Σ-Δ with no missing codes up to 250 Hz - ensures full dynamic range retention in precision sensor digitization. |
| Input Noise (RMS) | 1 μV at gain = 8, 5 Hz output rate - enables sub-0.01°C resolution on PT1000 RTDs with minimal averaging. |
| Excitation Current Range | 10 μA to 1 mA, programmable per channel - supports low-power RTD biasing and high-accuracy bridge excitation without external components. |
| Antialiasing Rejection | 97 dB simultaneous 50 Hz & 60 Hz rejection at 8.24 Hz - eliminates mains interference in factory-floor or laboratory environments. |
| Operating Supply | Single 3.3 V AVDD/IOVDD - simplifies power design and enables direct interfacing with common microcontrollers and level-shifters. |
| Temperature Range | −40°C to +85°C - qualified for industrial edge nodes, predictive maintenance gateways, and outdoor environmental monitors. |
| Firmware Upgradability | Field-flashable via SPI using MeasureWare Studio - allows post-deployment addition of new sensor models, calibration algorithms, and diagnostic features. |
Pinout & Package
The ADMW1001BCPZ-RL7 is housed in a 7 mm × 7 mm, 48-lead LFCSP package with exposed thermal pad soldered to AGND. Pin functions are validated per Analog Devices DS-ADMW1001-Rev.0 (Pages 11–12).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH1_AIN+, CH1_AIN− CH2_AIN+, CH2_AIN− | Differential analog inputs for universal channels | Support RTD (2-/3-wire), bridge (4-/6-wire), and voltage-output sensors; buffered mode extends common-mode range to AGND+0.1 V to AVDD−0.1 V. |
| CH1_TC+/IEXC, CH2_TC+/IEXC COM_TC−, TC_BIAS | Thermocouple input terminals with bias control | Enable dual thermocouple measurement; TC_BIAS biases COM_TC− to midscale, eliminating need for external op-amp circuitry. |
| CH1_IEXC, CH2_IEXC RSENSE+, RSENSE− | Programmable current excitation outputs & reference sense | Deliver matched 10 μA–1 mA excitation; RSENSE inputs enable ratiometric measurement for RTD linearity and drift compensation. |
| CS0, MOSI0, MISO0, SCLK0 | Primary SPI slave interface | Host processor interface for configuration, data readout, and firmware updates; supports Mode 0 (CPOL=CPHA=0) timing. |
| CS1, MOSI1, MISO1, SCLK1 SDA, SCL | SPI master & I²C sensor interfaces | Drive external digital sensors (e.g., pressure, humidity); I²C port supports two devices at 100 kHz or 400 kHz; SPI master provides clock and frame sync (CS1). |
| DRDY, STATUS, WAKE_UP | System control and status signaling | DRDY asserts on measurement completion/FIFO fill; STATUS flags diagnostics/alerts; WAKE_UP exits hibernation - enabling ultra-low-power duty-cycled operation. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded sensor linearization | On-chip polynomial/lookup table engine corrects J/K/T thermocouples and 2-/3-wire PT100/1000 RTDs - eliminates host MCU computational load and floating-point libraries. |
| Per-measurement configurability | Each channel independently sets gain, excitation current, settling time, and linearization - enables mixed-sensor nodes (e.g., RTD + thermocouple + pressure) in one cycle. |
| Autonomous sequencer & FIFO | Configurable cycle timer steps through up to 16 measurements; 128-word FIFO buffers results - reduces host polling frequency and interrupt overhead by >90% in battery-powered nodes. |
| Multi-layer diagnostics | Real-time open-wire detection on all analog inputs, short-circuit monitoring on excitation outputs, and LUT integrity checks - improves system reliability without external test fixtures. |
| Simultaneous 50/60 Hz rejection | Digital filter architecture rejects both frequencies within same conversion - critical for global deployments where mains frequency varies and EMI coupling is unavoidable. |
Applications
| Industrial Predictive Maintenance | Laboratory Environmental Monitoring |
|---|---|
Use Scenario: Continuous vibration, temperature, and strain monitoring on rotating machinery (motors, pumps, gearboxes) deployed in manufacturing plants. IC Role / Device Role / Timing Role: Primary sensor hub digitizing PT1000 RTDs, K-type thermocouples, and 4-wire strain gauges; performs on-device cold-junction compensation and linearization before SPI transmission to gateway MCU. Use Value: Enables <0.1°C RTD accuracy and <1°C thermocouple accuracy over −40°C to +85°C without host-based calibration - reducing firmware complexity and field recalibration intervals. | Use Scenario: Multi-parameter environmental chamber control logging temperature (RTD), humidity (I²C sensor), and pressure (SPI bridge transducer) at 10-second intervals. IC Role / Device Role / Timing Role: Central measurement node managing asynchronous sensor protocols (I²C, SPI, analog); uses embedded sequencer to interleave readings and FIFO to batch-upload to host every 5 minutes. Use Value: Reduces host MCU active time by 75% versus polled architecture - extending battery life in portable lab instruments and lowering thermal load in enclosed enclosures. |
| Smart Agriculture Sensor Node | Supply Chain Asset Tracking |
Use Scenario: Solar-powered field node measuring soil moisture (capacitive bridge), ambient temperature (PT100), and air humidity (I²C sensor) with daily transmission bursts. IC Role / Device Role / Timing Role: Low-power condition monitor entering hibernation between cycles; wakes via internal timer, configures channels, acquires data, stores in FIFO, then signals DRDY to host for upload. Use Value: Achieves <15 μA average current in hibernation mode with 10-second wake-up latency - enabling 5+ year battery life on two AA cells. | Use Scenario: Tamper-evident shipping container logger capturing temperature (thermocouple), shock (SPI accelerometer), and door-open events (GPIO) during transit. IC Role / Device Role / Timing Role: Event-triggered measurement unit; GPIO2 detects door opening, initiating immediate thermocouple + accelerometer capture and timestamping via internal sequencer. Use Value: Eliminates need for separate event controller and analog front-end - shrinking BOM by 3 ICs while maintaining traceable, time-stamped compliance records per ISO 13485. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sensor interface IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7124-8BRUZ | 8-channel, lower integration (no embedded thermocouple linearization, no SPI master, no firmware upgrade path); fixed 24-bit Σ-Δ ADC only. | Best for static, fixed-sensor-count systems requiring high channel density but no field adaptability. | Select AD7124-8BRUZ when cost-per-channel is prioritized over future-proofing and mixed-sensor flexibility. |
| MAX31865ARDZ+ | RTD-specific, 4-wire only, no thermocouple or bridge support; integrated bias current but no programmable gain or FIFO. | Optimized for dedicated platinum RTD measurement in HVAC or process control with minimal firmware overhead. | Choose MAX31865ARDZ+ only for pure RTD applications where sensor type is immutable and upgradeability is unnecessary. |
Compared with AD7124-8BRUZ and MAX31865ARDZ+, the ADMW1001BCPZ-RL7 uniquely combines firmware-evolvable sensor support, dual SPI interfaces for digital sensor expansion, and autonomous sequenced measurement - making it the only option among the three capable of adapting to new sensor types post-deployment without hardware change.
Availability
ADMW1001BCPZ-RL7 is available at Aetrix Electronics and suitable for industrial predictive maintenance, laboratory instrumentation, smart agriculture, supply chain tracking, and condition profiling requiring stable component supply and long-term firmware support.
Supply support for ADMW1001BCPZ-RL7 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, industrial automation, and communications.
The ADMW1001BCPZ-RL7 belongs to Analog Devices' MeasureWare platform - a family of reconfigurable, firmware-upgradeable sensor interface ICs designed specifically for flexible, future-proof condition monitoring in asset-intensive industries.
FAQ
What sensor types does the ADMW1001BCPZ-RL7 natively support without external firmware modification?
The ADMW1001BCPZ-RL7 natively supports J-, K-, and T-type thermocouples; 2-/3-wire PT100 and PT1000 RTDs; 4-wire Wheatstone bridges; and I²C/SPI digital sensors (e.g., pressure, humidity) out-of-the-box with firmware revision 1.0. Support for custom thermocouple types and lookup-table-based sensors is enabled via user-loaded LUTs, and all native functions are implemented in on-chip logic - no host MCU intervention is required for basic operation of ADMW1001BCPZ-RL7.
Does the ADMW1001BCPZ-RL7 require external components for thermocouple cold-junction compensation?
No, the ADMW1001BCPZ-RL7 performs cold-junction compensation internally using its dedicated 2-wire or 3-wire RTD inputs (e.g., CH1_AIN+/CH1_AIN−) configured per thermocouple channel. The device measures the reference junction temperature, applies polynomial correction, and outputs fully compensated temperature values directly - eliminating the need for external thermistors, ADCs, or compensation algorithms in the host system. This capability is integral to ADMW1001BCPZ-RL7's architecture.
How does the ADMW1001BCPZ-RL7 manage power consumption in battery-operated applications?
The ADMW1001BCPZ-RL7 achieves ultra-low power operation via hibernation mode (15 μA typical), programmable measurement intervals (milliseconds to hours), and automatic power gating between conversions. Its WAKE_UP pin enables external event-triggered wake-up, and the sequencer can suspend all analog circuitry between cycles. When paired with a low-power host MCU, ADMW1001BCPZ-RL7 enables multi-year battery life - verified in field deployments with lithium-thionyl chloride cells powering smart agriculture nodes.
Can the ADMW1001BCPZ-RL7 interface with both analog and digital sensors simultaneously in a single measurement cycle?
Yes, the ADMW1001BCPZ-RL7's embedded sequencer supports mixed-sensor cycles: it can acquire data from analog channels (e.g., CH1 thermocouple, CH2 RTD), trigger I²C reads (e.g., humidity sensor on SDA/SCL), and execute SPI transactions (e.g., pressure sensor on CS1/MOSI1) within one configurable cycle. Each step is timed, validated, and stored in the on-chip FIFO - allowing synchronized, time-aligned multi-sensor data acquisition without host coordination. This concurrent operation is a core feature of ADMW1001BCPZ-RL7.
Is firmware update capability built into the ADMW1001BCPZ-RL7, and how is it performed?
Yes, firmware updates are intrinsic to ADMW1001BCPZ-RL7 via its SPI slave interface (CS0/MOSI0/MISO0/SCLK0). Updates are performed using Analog Devices' MeasureWare Studio tool and a custom flash loader - enabling field upgrades to add new sensor models, improve linearization algorithms, or enhance diagnostics. The device ships with bootloader firmware; full firmware images are downloadable from the official ADMW1001 product page. No JTAG or external programmer is needed - all ADMW1001BCPZ-RL7 firmware operations occur over standard SPI.
ADMW1001BCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 48-WFQFN Exposed Pad, CSP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Type:
- Sensor Interface - Unprogrammed
- Input Type:
- Logic
- Output Type:
- SPI
- Current - Supply:
- 6 mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-LFCSP (7x7)
ADMW1001BCPZ-RL7 FAQ
1.How can I place an order for ADMW1001BCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADMW1001BCPZ-RL7 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 ADMW1001BCPZ-RL7 reliable?
The price and inventory of ADMW1001BCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADMW1001BCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADMW1001BCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADMW1001BCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADMW1001BCPZ-RL7?
ADMW1001BCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADMW1001BCPZ-RL7 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 ADMW1001BCPZ-RL7?
For technical support, including ADMW1001BCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADMW1001BCPZ-RL7 requirements.
6.How does Aetrix verify that ADMW1001BCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADMW1001BCPZ-RL7 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 ADMW1001BCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADMW1001BCPZ-RL7?
All ADMW1001BCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADMW1001BCPZ-RL7, 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 ADMW1001BCPZ-RL7 part is unused and in its original packaging.
Return procedure for ADMW1001BCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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