ATLAS® Digital Amplifiers


ATLAS® Digital Amplifiers are compact single-axis amplifiers that provide high performance torque control of DC brush, brushless DC, and step motors. They are packaged in a compact solderable module and utilise standard through-hole pins for all connections.

High Performance in an Ultra Compact Package

ATLAS Digital Amplifiers are used for direct control of motor torque, or in conjunction with higher level controllers for velocity or positioning applications. Their very compact size and high power output make them ideally suited for applications such as laboratory automation, scientific instruments, general purpose motion control, HVAC, fan & pump controllers, and industrial motor control applications. ATLAS Amplifiers are provided in both vertical and horizontal mounting configurations, and with and without heat sink attachment tabs.


ATLAS digital amplifiers provide many advanced control features including user-programmable gain parameters, performance trace, field oriented control and I2t current management. Atlas amplifiers are powered from a single supply voltage, and provide automatic protection from overcurrent, undervoltage, overvoltage, overtemperature, and short circuit faults.


The ATLAS family has been designed to work seamlessly with PMD’s Magellan family of Motion Processor ICs. Alternatively, they can be used with dedicated FPGAs, digital signal processors, or general purpose microprocessors. Communication is via SPI (Serial Peripheral Interface) using a simple, packet-oriented protocol. For step motors, in addition to the SPI format, a pulse & direction
input mode is provided.


  • Total power output up to 1 Kilowatt
  • Digital high-performance torque control
  • Ultra-compact solderable design (38.5mm x 38.6mm x 15.2mm)
  • Low cost and extremely efficient
  • Programmable control
  • Utilise standard through-hole pins for all connections


Supported Motor Types Brushless DC, DC Brush, Step motor
Voltage Input 12-56VDC
Brushless DC Continuous current output 9 Arms @ 48 v (10 Arms @ 24 v)
Brushless DC Peak current output 25ADC
Brushless DC Continuous power output 750W
DC Brush Continuous current output 12 ADc @ 48 v (14 ADc @ 24 v)
DC Brush Peak current output 25ADC
DC Brush Continuous power output 575W
Step Continuous current output 8 Arms @ 48 v (9 Arms @ 24 v)
Step Continuous power output 540W
Microstepping resolution 256
PWM frequency 20,40,80 kHz
Current Loop rate 20 kHz
User Programmability: Non-volatile user configuration storage
                     Trace Memory 2 kB
                      I/Os FaultOut, Enable

Short Circuit, Overcurrent, i2t Current Foldback, SPI Watchdog, Overvoltage, Undervoltage

Operating Temperature 0° - 40° C
Compliance: RoHs, CE LVD:EN60204-1, EMC-D: EN61000-6-1, EN61000-6-3, EN55011, UL
  Designed to UL508c, UL840 and EN60204-1
Mechanical Dimensions 38.5 mm (1.52”) x 38.6 mm (1.52”) x 15.2 mm (.60”)
Weight 28.5 g (1.0 oz)
Call +44 (0) 1327 307600 for more info
  Product Documents:
Product Specification
Atlas Datasheet
Atlas Datasheet

Image Gallery