Single Converter AFE
![]()
- Parameters
- Features
- Description
| Part Number | MAX71020A |
|---|
| User MPU Core | None |
|---|
| Signal Processing Core | CE |
|---|
| Supply Voltage (V) | 3.3 |
|---|
| Total Sensor Inputs | 1V, 1I |
|---|
| Internal Flash (KBytes) | OTP |
|---|
| Internal RAM (KBytes) | 1 |
|---|
| Interface | SPI |
|---|
| Package | TQFN/28 ,TSSOP/28 |
|---|
| Note | Single Phase |
|---|
- Best-in-Class Embedded Algorithms Support Highly Accurate Electricity Measurements
- Voltage, Current, and Frequency
- Active, Reactive, and Apparent Power/Energy
- Digital Temperature Compensation
- 40Hz–70Hz Line Frequency Range and Phase Compensation (±10°)
- Advanced AFE with Exceptional Accuracy and Temperature Stability
- Voltage Reference Temperature Coefficient: 40ppm/°C (max)
- On-Chip Digital Temperature Sensor
- 24-Bit 2nd Order Delta-Sigma ADCs with Differential and Single-Ended Inputs
- ±0.1% Wh Accuracy over 2000:1 Current Range
- Highly Integrated Features Support Compact Design Cycles and Reduced Bill of Materials
- Small, 28-Pin TQFN Package
- Digital Temperature Compensation
- Low Power Consumption
- Less Than 5mA (typ) Consumption at 3.3V
- Simple Host Interface
- SPI Slave
- Atomic Measurements Outputs
- DIO or SPI-Based Status Signals
The MAX71020A is a single-chip analog front-end (AFE) for use in embedded energy measurement applications. It contains the compute engine (CE) found in fourth-generation Teridian meter system-onchips (SoCs) and an improved analog-to-digital converter (ADC). It interfaces to a host controller of choice over a SPI interface.
