ATSENSE-101/ATSENSE-201(H)/ATSENSE-301(H)
Multi-Channel Sigma-Delta Analog Front End
DATASHEET
Description
ATSENSE-101/ATSENSE-201(H)/ATSENSE-301(H) are multi-channel analog front
end devices which integrate three, four or seven simultaneously sampled Sigma-Delta
A/D converters, a high-precision voltage reference with up to 10 ppm/°C temperature
stability (H-versions), a programmable current signal amplification, a temperature
sensor and an SPI interface. When used in data acquisition and energy measurement
applications in combination with the Atmel
®
ATSAM4C device family that features a
dedicated Cortex
®
-M4 processor and metrology library and a variety of sensors
i n c l u d i n g S h u n t , C T a n d R o g o w s k i c oi l s , t h e A T S E N S E - 1 0 1 / A T S E N S E -
201(H)/ATSENSE-301(H) exceeds ANSI C12.20-2002 and IEC 62053-22 metering
accuracy classes of up to 0.2% over 3000:1 current range.
Features
Analog Front End
Single-phase (ATSENSE-101), Dual-phase (ATSENSE-201(H)) or Poly-
phase (ATSENSE-301(H)) Energy Metering Analog Front End Suitable for
Atmel MCUs and Metrology Library
Compliant with Class 0.2 Standards (ANSI C12.20-2002 and IEC 62053-
22)
Three, Four or Seven Sigma-Delta ADC Measurement Channels: One,
Two or Three Voltages, Two or Four Currents, 102 dB Dynamic Range
Current Channels with Pre-Gain (x1, x2, x4, x8)
Supports Shunt, Current Transformer and Rogowski Coils
Dedicated Current Channel for Anti-tamper Measurement
Integrated SINC Decimation Filters. Output Data Rate: 16 kSps typical
Integrated 2.8V LDO Regulator to Supply Analog Functions
3.0V to 3.6V Operation, Ultra Low Power: < 2.5 mW typical/Channel @
3.3V
Specified for T
J
= [-40°C; +100°C]
Standard 1.2V Output Voltage with Possible External Bypass
Temperature Drift: 50 ppm typical (ATSENSE-101/ATSENSE-
201/ATSENSE-301)
Temperature Drift: 10 ppm typical (ATSENSE-201H/ATSENSE-301H)
Factory-measured Temperature Drift and Die Temperature Sensor to
Perform Software Correction
Precision Voltage Reference
11219B–ATSENSE–20-Feb-14
Digital Interface
8 MHz Serial Peripheral Interface (SPI) Compatible Mode 1 (8-bit) for
ADC Data and AFE Controls
Interrupt Output Line Signaling ADC End-of-Conversion, Underrun and
Overrun
32-lead TQFP, 7 x 7 x 1.4 mm
20-lead SOIC, 12.8 x 7.5 x 2.3 mm
Package
ATSENSE-101/ATSENSE-201(H)/ATSENSE-301(H) [DATASHEET]
11219B–ATSENSE–20-Feb-14
2
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