Part A
ADM1062ACPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 1331 PCS
- Package
- VFQFN-40
- Series
- PMIC - superviseur
Replacement verdict
Compatible functional replacement candidate
The ADM1062ACPZ and ADM1066ACP are both Analog Devices Super Sequencers in the same 40-lead LFCSP package with a common 1.375 V to 14.4 V supply range and I2C/SMBus interface, making them strong functional replacement candidates. The ADM1066ACP adds a closed-loop margining DAC and higher-voltage input capability, so designers should validate the margining function and input voltage headroom before substituting in margining-critical rails.
Package Type
High match
Supply Voltage Range
High match
Margining DAC Function
Validation required
Input Voltage Headroom
Validation required
Parts at a glance
Part B
ADM1066ACP
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5155 PCS
- Package
- VFQFN-40
- Series
- PMIC - superviseur
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM1062ACPZ | ADM1066ACP | Why it matters |
|---|---|---|---|
| Number of Supervisory Inputs | 10 (VH/VP/VX inputs) | 10 (VH/VP/VX inputs) | Determines how many supply rails can be monitored simultaneously; identical here, so both suit multi-rail systems. |
| Number of Programmable Output Drivers | 10 (PDO) | 12 (PDO) | More outputs allow additional sequencing/enable signals; the ADM1066 offers two extra drivers for larger power trees. |
| Integrated ADC | 12-bit ADC (1 dedicated channel) | 12-bit ADC (1 dedicated channel) | Enables voltage/current/temperature readback for margining and diagnostics; both provide the same ADC capability. |
| Nonvolatile Fault/Event Logging (Black Box) | Not included | Included (nonvolatile black box) | Black-box recording captures fault context for post-mortem debug; only the ADM1066 provides this feature. |
| Supply Voltage Range (VDD) | 3.0 V to 14.4 V | 3.0 V to 14.4 V | Defines the device's own operating supply; identical range means both work from the same board rails. |
| Communication Interface | SMBus/I2C (with PMBus-compatible commands) | SMBus/I2C (with PMBus-compatible commands) | Determines host configurability and telemetry access; identical interface supports drop-in firmware reuse. |
| Package | 40-lead LFCSP (6 mm x 6 mm) | 40-lead LFCSP (6 mm x 6 mm) | Footprint and thermal characteristics affect PCB layout; identical package allows the same land pattern. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Confirms suitability for industrial environments; identical ratings mean equivalent thermal qualification. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM1062ACPZ | ADM1066ACP |
|---|---|---|
| Part Status | Active | Obsolete |
| Type | Sequencer | Sequencer |
| Number of Voltages Monitored | 10 | 12 |
| Voltage - Threshold | Adjustable/Selectable | Adjustable/Selectable |
| Output | Programmable | Programmable |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | Super Sequencer® | - |
Frequently asked questions
What are the ADM1062ACPZ and ADM1066ACP?
Both are Analog Devices Super Sequencer devices with integrated 12-bit ADC and nonvolatile fault recording, housed in a 40-lead LFCSP (CP-40) package. They are used for power-supply sequencing, monitoring, and margining in complex multi-rail systems.
What is the key difference between the ADM1062ACPZ and ADM1066ACP?
The ADM1066ACP integrates a closed-loop margining DAC system with six voltage-output DACs for real-time supply margining, whereas the ADM1062ACPZ provides a single voltage-output DAC (VOUT) for reference or tracking purposes and does not include the six-channel margining DAC array.
How many supply inputs can each device monitor?
Both devices provide ten programmable input channels (VH through VX) that can be configured as high-impedance analog inputs for voltage monitoring or as digital logic inputs, allowing supervision of up to ten power rails.
Do both parts include nonvolatile fault logging?
Yes. Both the ADM1062ACPZ and ADM1066ACP include nonvolatile EEPROM for configuration storage and a fault recording block that captures the state of the inputs at the time of a fault, allowing post-event diagnostics.
What communication interface do these devices use?
Both devices support an I2C-compatible serial bus (with SMBus protocol support) for configuration, monitoring, and margining commands, operating at up to 400 kHz.
Can the ADM1062ACPZ be used as a drop-in replacement for the ADM1066ACP?
No. Although both share the same 40-lead LFCSP package and pin count, the ADM1066ACP provides six margining DAC outputs that the ADM1062ACPZ does not, so pin functions and register maps differ. A direct substitution requires validation against the respective datasheets and the target design.
What supply voltage range do these devices operate from?
Both devices operate from a single supply of 3.0 V to 14.4 V (VCC), with an additional low-voltage supply pin (VDD) for the internal digital core, as specified in the Analog Devices datasheets.
Are both devices specified over the industrial temperature range?
Yes. Both the ADM1062ACPZ and ADM1066ACP are specified for operation over the −40 °C to +85 °C industrial temperature range.