Analog Devices Inc. ADES175x High-Voltage Data-Acquisition Systems

Analog Devices Inc. ADES175x High-Voltage Data-Acquisition Systems are flexible systems for the management of low-voltage and high-voltage battery modules. These systems measure fourteen cell voltages and a combination of six temperatures or system voltages with redundant measurement engines in 162μs. The ADES175x systems can perform all inputs with the Analog Digital Converter (ADC) measurement engine 99μs. These systems use battery-management UART protocol for robust communications and support an I²C controller interface for external device control.

The ADES175x systems include individually configurable safety alerts, such as overvoltage, undervoltage, overtemperature, and undertemperature faults. These systems operate at 65V maximum supply voltage and -40°C to 105°C temperature range. The ADES175x systems are used in EV charging, battery-powered tools, super-cap systems, high-voltage battery stacks, and residential battery storage systems.

Features

Redundant ADC and Comparator (COMP) acquisitions
Simultaneous cell and bus-bar voltage acquisitions
14 cell-voltage measurement channels:
- 2.2mV/5mV/10mV accuracy (-40°C to 105°C)
- 1.8mV accuracy (5°C to 65°C)
14 cell-balancing switches:
- >300mA software-programmable balancing current
- Automated balancing by cell voltage
- Automated balancing with individual cell timers
- Emergency discharge mode
Battery-management UART protocol:
- Inductive for higher Galvanic isolation
- Up to 2Mbps baud rate (auto-detect)
- 1.5μs propagation delay per device
- Daisy-chain up to 32 devices
- Packet-Error Checking (PEC)

Six configurable auxiliary inputs for temperature, voltage, or GPIO
Integrated die temperature measurement
Hot plug-tolerant without external protection
UART and dual UART interface
I²C controller
32-Bit unique device ID
Individually configurable safety alerts:
- 1-cell mismatch alert
- Overvoltage and undertemperature faults
- Undervoltage and overtemperature faults
65V maximum supply voltage
Ultra-low power operation

Applications

Battery-backup systems (UPS)
High-voltage battery stacks
Residential battery storage systems

Super-cap systems
Battery-powered tools
EV charging

Analog Devices Inc. ADES175x High-Voltage Data-Acquisition Systems

Features

Applications

Typical Application Diagram

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