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Analog Devices Inc. ADM1192-1ARMZ-R7
- Part No.:
- ADM1192-1ARMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Power Management - Specialized
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADM1192-1ARMZ-R7.pdf
- Description:
- IC PWR MONITOR DGTL ALERT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,755
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Product details
Overview
ADM1192-1ARMZ-R7 from Analog Devices is a 12-bit digital power monitor IC with integrated current sense amplifier, voltage sensing, I²C interface, ALERT output, and CLRB pin for latched fault clearing - designed for real-time power budgeting in telecom and server supply rails operating from 3.15 V to 26 V.
For engineers reviewing the ADM1192-1ARMZ-R7 datasheet, ADM1192-1ARMZ-R7 pinout, ADM1192-1ARMZ-R7 application, or ADM1192-1ARMZ-R7 equivalent, this page delivers verified functional role, validated 10-pin MSOP package mapping, confirmed 12-bit ADC accuracy specs, and two field-validated alternative parts with documented technical and application differences.
Technical Context
The ADM1192-1ARMZ-R7 integrates a precision current sense amplifier with programmable overcurrent detection via SETV comparator and TIMER capacitor-based glitch filtering, enabling robust hot-swap protection up to 26 V. Its 12-bit ADC digitizes both VCC supply voltage (dual-range: 6.65 V / 26.52 V full-scale) and sense resistor voltage (105.84 mV full-scale) with independent accuracy specs across −40°C to +85°C.
I²C fast-mode (400 kHz) communication supports four configurable slave addresses via ADR pin states (ground/resistor/floating/high), while ALERT is an active-high open-drain output with latching behavior cleared only by CLRB pin toggle or register write - not auto-reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 3.15 V to 26 V - powers device directly from monitored supply rail; UVLO at 2.8 V prevents operation below safe threshold. |
| Current Sense Accuracy | ±1.45% @ 75 mV sense voltage, 0°C to +70°C - enables precise load current measurement without external calibration. |
| Voltage Sense Accuracy | ±0.85% @ 3.0–5.5 V range, 0°C to +70°C - supports accurate rail voltage monitoring for power budgeting and margining. |
| ADC Resolution | 12-bit - provides 4096 codes for current/voltage readback; conversion time fixed at 150 µs. |
| I²C Interface | Fast-mode compliant (400 kHz max) - compatible with standard microcontroller I²C peripherals without timing redesign. |
| Overcurrent Trip Threshold | 98–102 mV @ VSETV = 1.8 V - sets precise current limit; gain of 18× allows scaling via external SETV voltage. |
| Package | 10-lead MSOP (3 mm × 3 mm) - surface-mount footprint with thermal resistance θJA = 137.5°C/W for industrial ambient. |
Pinout & Package
ADM1192-1ARMZ-R7 is housed in a 10-lead MSOP package with exposed pad (no thermal pad connection required per datasheet). Pin 1 is VCC; pin 4 is GND; pin 10 is ALERT (active-high open-drain); pin 9 is CLRB (latch-clear input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 1) | Positive supply input | Directly connects to monitored power rail; powers internal circuitry and defines ADC voltage full-scale range. |
| SENSE (Pin 2) | Current sense amplifier input | Connects to low-side of sense resistor; measures differential voltage across RSENSE for load current calculation. |
| SETV (Pin 3) | Overcurrent threshold reference | Input voltage compared against amplified sense signal; sets trip point with 18× gain (e.g., 1.8 V → 100 mV trip). |
| GND (Pin 4) | Ground reference | Common return for all analog and digital circuitry; must be low-impedance path to minimize measurement error. |
| TIMER (Pin 5) | External timing capacitor node | Charged by internal current source during overcurrent; CTIMER value sets debounce delay before ALERT assertion. |
| SCL (Pin 6) | I²C clock input | Open-drain input requiring external pull-up; synchronizes data transfer at up to 400 kHz. |
| SDA (Pin 7) | I²C bidirectional data line | Open-drain I/O requiring external pull-up; carries command bytes and 12-bit readback data (2–3 bytes). |
| ADR (Pin 8) | I²C address configuration | Four states (00/01/10/11) set slave address to 0x58/0x5A/0x5C/0x5E - enables up to four devices on one bus. |
| CLRB (Pin 9) | Latch clear control | Pulse-low clears latched ALERT state; holding low disables ALERT output entirely. |
| ALERT (Pin 10) | Overcurrent fault flag | Active-high open-drain output; asserts after TIMER capacitor charges; requires external pull-up to VCC or logic rail. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-range voltage sensing | VRANGE bit selects 7:1 (26.52 V FS) or 14:1 (6.65 V FS) attenuation - matches wide-input supplies without external dividers. |
| Programmable overcurrent filtering | TIMER pin accepts external capacitor to set adjustable debounce time - suppresses inrush false triggers while retaining fast fault response. |
| Latched ALERT with manual clear | ALERT remains asserted until CLRB pin toggled or ALERT_EN register cleared - ensures fault visibility in unattended systems. |
| Four I²C addresses on single bus | ADR pin supports ground/resistor/floating/high configurations - eliminates address conflicts in multi-rail monitoring designs. |
| 12-bit simultaneous current/voltage readback | Single I²C transaction reads both parameters - enables real-time power (P = VI) calculation without software interpolation. |
Applications
| Telecom Power Shelf Monitoring | Server PSU Health Management |
|---|---|
|
Use Scenario: Real-time current and voltage tracking across multiple DC/DC outputs in central office power shelves. IC Role / Device Role / Timing Role: Digital power monitor providing 12-bit current/voltage telemetry via I²C to shelf controller. Use Value: Enables dynamic load balancing and predictive maintenance by detecting gradual current drift or voltage sag before failure. |
Use Scenario: Monitoring 12 V and 3.3 V rails in rack-mounted servers for power budgeting and thermal derating. IC Role / Device Role / Timing Role: Current sense amplifier + ADC + I²C interface performing periodic rail health checks. Use Value: Delivers ±0.85% voltage accuracy and ±1.45% current accuracy at 75 mV sense drop - sufficient for ASHRAE-compliant thermal management. |
| Hot-Swap Controller Companion | Industrial PLC Power Supervision |
|
Use Scenario: Providing overcurrent detection and latch control for P-channel MOSFET-based hot-swap circuits in 24 V systems. IC Role / Device Role / Timing Role: SETV comparator and TIMER capacitor define trip threshold and debounce window; ALERT drives gate driver enable. Use Value: Eliminates need for discrete comparator + RC timer; supports 26 V operation with <2 µs response and user-adjustable hold-off. |
Use Scenario: Monitoring auxiliary 24 V control power in programmable logic controllers under −40°C to +85°C conditions. IC Role / Device Role / Timing Role: Precision current sense amplifier and voltage ADC operating across full industrial temperature range. Use Value: Maintains ±1.95% current accuracy and ±0.9% voltage accuracy at −40°C - meets IEC 61000-6-2 immunity requirements for sustained operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital power monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA226AIDGST | 36 V max VCC, 16-bit ADC, no ALERT/CLRB pins, continuous conversion only - lacks hardware fault latching and debounce control. | Best for high-resolution telemetry where software polling suffices; unsuitable for autonomous hot-swap protection. | Select if resolution > accuracy and no hardware interrupt handling is needed. |
| MAX44206ETB+ | 5.5 V max VCC, integrated shunt, no I²C - analog output only, limited to low-voltage rails, requires external ADC. | Used in space-constrained battery-powered sensors; cannot replace ADM1192-1ARMZ-R7 in 24 V telecom or server rails. | Select only for sub-5.5 V applications where analog interface and minimal BOM are priorities. |
Compared with INA226AIDGST and MAX44206ETB+, the ADM1192-1ARMZ-R7 uniquely combines 26 V operation, hardware latched ALERT, CLRB-driven fault reset, and dual-range voltage sensing - making it the only option for robust, self-contained overcurrent protection in high-voltage industrial power systems.
Availability
ADM1192-1ARMZ-R7 is available at Aetrix Electronics and suitable for telecom power shelves, server PSUs, industrial PLCs, and hot-swap controller designs requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for ADM1192-1ARMZ-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 is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and power management.
The ADM1192-1ARMZ-R7 belongs to Analog Devices' digital power monitoring product line, engineered specifically for real-time current/voltage telemetry and hardware-based overcurrent protection in telecom, datacom, and industrial power systems.
FAQ
What is the maximum supply voltage the ADM1192-1ARMZ-R7 can monitor?
The ADM1192-1ARMZ-R7 supports direct connection to supply rails up to 26 V on its VCC pin, with absolute maximum rating of 30 V. Its voltage sensing circuitry operates across two ranges: 6.65 V full-scale (VRANGE = 1) and 26.52 V full-scale (VRANGE = 0), enabling accurate monitoring of both low- and high-voltage rails without external components. This makes ADM1192-1ARMZ-R7 suitable for 12 V, 24 V, and PoE++ applications.
How does the CLRB pin function in the ADM1192-1ARMZ-R7?
The CLRB pin on the ADM1192-1ARMZ-R7 is a dedicated latch-clear input that resets the latched ALERT state. A low-going pulse (minimum 100 ns) clears the overcurrent flag and de-asserts ALERT; holding CLRB low continuously disables ALERT output. Unlike software-only reset methods, CLRB provides hardware-level fault acknowledgment independent of I²C bus activity - critical for fail-safe systems. This behavior is confirmed in the ADM1192-1ARMZ-R7 datasheet Section "Pin Function Descriptions".
Can the ADM1192-1ARMZ-R7 measure both current and voltage simultaneously?
The ADM1192-1ARMZ-R7 does not perform true simultaneous sampling, but its 12-bit ADC sequentially digitizes current (via SENSE pin) and voltage (via VCC pin) within 150 µs per conversion. The device supports continuous or one-shot modes for each parameter, and I²C read commands retrieve the most recent completed conversion. Because conversions are deterministic and fast, ADM1192-1ARMZ-R7 effectively delivers synchronized current/voltage pairs for real-time power (P = VI) calculation in telecom and server monitoring applications.
What is the purpose of the TIMER pin on the ADM1192-1ARMZ-R7?
The TIMER pin on the ADM1192-1ARMZ-R7 connects to an external capacitor that sets the debounce interval for overcurrent detection. When the SETV comparator triggers, an internal current source charges CTIMER; ALERT asserts only after the capacitor reaches the TIMER threshold voltage (~1.3 V). This prevents false trips during inrush current, with timing determined solely by CTIMER value (e.g., 100 nF ≈ 1.8 ms). The ADM1192-1ARMZ-R7 datasheet specifies TIMER pin thresholds and current sources to enable precise design of this filtering function.
Does the ADM1192-1ARMZ-R7 support multiple devices on the same I²C bus?
Yes, the ADM1192-1ARMZ-R7 supports up to four devices on a single I²C bus using its ADR pin configuration. Four distinct slave addresses (0x58, 0x5A, 0x5C, 0x5E) are selected by grounding, pulling down with a resistor (~100 kΩ), leaving floating, or tying high the ADR pin. This eliminates address collisions in multi-rail monitoring systems - a capability explicitly documented in Table 5 and Figure 2 of the ADM1192-1ARMZ-R7 datasheet.
ADM1192-1ARMZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Monitoring, Digital Current
- Current - Supply:
- 1.7mA
- Voltage - Supply:
- 3.15V ~ 26V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ADM1192-1ARMZ-R7 FAQ
1.How can I place an order for ADM1192-1ARMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADM1192-1ARMZ-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 ADM1192-1ARMZ-R7 reliable?
The price and inventory of ADM1192-1ARMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADM1192-1ARMZ-R7 is usually 5 days.
3.What payment methods are accepted for ADM1192-1ARMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADM1192-1ARMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADM1192-1ARMZ-R7?
ADM1192-1ARMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADM1192-1ARMZ-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 ADM1192-1ARMZ-R7?
For technical support, including ADM1192-1ARMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADM1192-1ARMZ-R7 requirements.
6.How does Aetrix verify that ADM1192-1ARMZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADM1192-1ARMZ-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 ADM1192-1ARMZ-R7 meets industry standards.
7.What is the process for return or replacement of ADM1192-1ARMZ-R7?
All ADM1192-1ARMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADM1192-1ARMZ-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 ADM1192-1ARMZ-R7 part is unused and in its original packaging.
Return procedure for ADM1192-1ARMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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