ADE795351
Single Phase, Multifunction Metering ICThe ADE795351 is a single phase, multifunction metering ic from Analog Devices. View the full ADE795351 datasheet below including absolute maximum ratings.
Manufacturer
Analog Devices
Category
Single Phase, Multifunction Metering IC
Overview
Part: ADE7953 — Analog Devices
Type: Single Phase, Multifunction Metering IC
Description: A high accuracy electrical energy measurement IC for single phase applications, measuring line voltage and current, and calculating active, reactive, and apparent energy, as well as instantaneous RMS voltage and current, with a second current input for neutral current measurement.
Operating Conditions:
- Supply voltage: 3.3 V ± 10%
- Operating temperature: -40°C to +85°C
- Input clock frequency: 3.58 MHz (typical)
- Line frequency: 45 Hz to 65 Hz
Absolute Maximum Ratings:
- Max continuous current: Not applicable
Key Specs:
- Active Energy Measurement Error (Current Channel A): 0.1% (typ) over 3000:1 dynamic range
- Reactive Energy Measurement Error (Current Channel A): 0.1% (typ) over 3000:1 dynamic range
- IRMS (Current Channel A) Measurement Error: 0.2% (typ) over 1000:1 dynamic range
- IRMS (Current Channel B) and VRMS Measurement Error: 0.2% (typ) over 500:1 dynamic range
- Active/Reactive/RMS Measurement Bandwidth: 1.23 kHz (-3 dB)
- Maximum Signal Levels (Differential inputs IAP to IAN, IBP to IBN): ±500 mV peak
- Input Impedance (DC) IAP/IAN: 50 MΩ
- Signal-to-Noise Ratio (Current Channel A): 74 dB (typ)
Features:
- Measures active, reactive, and apparent energy; sampled waveform; current and voltage rms
- Provides a second current input for neutral current measurement
- Less than 0.1% error in active and reactive energy measurements over a dynamic range of 3000:1
- Less than 0.2% error in instantaneous IRMS measurement over a dynamic range of 1000:1
- Flexible PGA gain stage (up to ×22)
- Includes internal integrators for use with Rogowski coil sensors
- SPI, I2C, or UART communication
- Two configurable low jitter pulse output pins
- Power quality information (overcurrent, overvoltage, peak, sag detection)
- Independent active, reactive, and apparent no-load detections
Applications:
- Single phase electrical energy measurement
Package:
- 28-lead LFCSP
Features
Highly accurate; supports EN 50470-1, EN 50470-3, IEC 6205321, IEC 62053-21, IEC 62053-22, and IEC 62053-23 standards Measures active, reactive, and apparent energy; sampled waveform; current and voltage rms Provides a second current input for neutral current measurement Less than 0.1% error in active and reactive energy measurements over a dynamic range of 3000:1 Less than 0.2% error in instantaneous IRMS measurement over a dynamic range of 1000:1 Provides apparent energy measurement and instantaneous power readings 1.23 kHz bandwidth operation Flexible PGA gain stage (up to ×22) Includes internal integrators for use with Rogowski coil sensors SPI, I 2 C, or UART communication
Pin Configuration
Figure 4. Pin Configuration
Table 5. Pin Function Descriptions
| Pin No. | Mnemonic | Description |
|---|---|---|
| 1 | ZX | Voltage Channel Zero-Crossing Output Pin.See the Voltage Channel Zero Crossing section. This pin can be configured to output a range of alternative power quality signals (see the Alternative Output Functions section). |
| 2 | RESET | Active Low Reset Input. To initiate ahardware reset, thispin must be brought low for at minimum of 10 μs. |
| 3 | VINTD | This pin provides access to the 2.5 V digital LDO.This pin should be decoupled with a 4.7 μF capacitor in parallel with a 100 nF ceramic capacitor. |
| 4 | DGND | Ground Reference for the Digital Circuitry. |
| 5,6 | IAP , IAN | Analog Input for Current Channel A (Phase Current Channel). This differential voltage input hasamaximum input range of ±500 mV. The maximum pin voltage for single-ended use is ±250 mV.The PGA associated with this input has a maximum gain stage of 22 (see the Analog Inputs section). |
| 7,8 | PULL_HIGH | These pins should be connectedtoVDD for proper operation. |
| 9,10 | IBP , IBN | Analog Input for Current Channel B (Neutral Current Channel). This differential voltage input hasamaximum input range of ±500 mV. The PGA associated with this input has a maximum gain of 16 (see the Analog Inputs section). |
| 11,12 | VN, VP | Analog Input for Voltage Channel. This differential voltage input hasamaximuminput range of±500 mV.The PGA associated with this input has a maximum gain of 16 (see the Analog Inputs section). |
| 13 | REF | This pin provides access to the on-chip voltage reference.The internal reference hasanominal voltage of 1.2 V. This pin should be decoupled with a 4.7 μF capacitor in parallel with a 100 nFceramic capacitor. Alternatively,an external reference voltage of 1.2 Vcan be applied to this pin (see the Reference Circuit section). |
| 14 | PULL_LOW | This pin should be connectedtoAGND for proper operation. |
| 15 | VINTA | This pin provides access to the 2.5 V analog LDO. This pin should be decoupledwith a4.7 μF capacitor in parallel with a 100 nF ceramic capacitor. |
| 16 | AGND | Ground Reference for the Analog Circuitry. |
| 17 | VDD | Power Supply (3.3 V) for the ADE7953.For specified operation, the input to thispin should be within 3.3V± 10%.Thispin should be decoupledwith a 10 μFcapacitor in parallel witha100 nFceramic capacitor. |
| 18 | CLKIN | Master Clock Input for the ADE7953.Anexternal clockcanbe provided at this input. Alternatively, aparallel resonant AT crystal can be connected across the CLKIN and CLKOUT pins to provide aclock source for the ADE7953.The clock frequency for specified operation is 3.58 MHz. Ceramic load capacitors of a few tens of picofarads should be used with the gate oscillator circuit. Refer to the crystal manufacturer's data sheet for the load capacitance requirements. |
| 19 | CLKOUT | A crystal can be connectedacross thispin and CLKIN to provide a clock source for the ADE7953. |
| Pin No. | Mnemonic | Description |
|---|---|---|
| 20 | REVP | Reverse Power Output Indicator. See the Reverse Power section. This pin can be configured to output a range of alternative power quality signals (see the Alternative Output Functionssection). |
| 21 | ZX_I | Current Channel Zero-Crossing Output Pin. See the Current Channel Zero Crossing section. This pin can be configured to output a range of alternative power quality signals (see the Alternative Output Functions section). |
| 22 | IRQ | Interrupt Output.See the ADE7953 Interrupts section. |
| 23 | CF1 | Calibration FrequencyOutput 1. |
| 24 | CF2 | Calibration FrequencyOutput 2. |
| 25 | SCLK | Serial Clock Input for the Serial Peripheral Interface. All serial communications are synchronized to the clock (see the SPI Interface section). If using the I 2 Cinterface, this pin must be pulled high. If using the UART interface, thispin must be pulled to ground. |
| 26 | MISO/SDA/Tx | Data Output for SPI Interface/Bidirectional DataLine for I 2 C Interface/Transmit Line for UART Interface. |
| 27 | MOSI/SCL/Rx | Data Input for SPI Interface/Serial Clock Input for I 2 CInterface/Receive Line for UARTInterface. |
| 28 | CS EPAD | Chip Select for SPI Interface. This pin must be pulled high if using the I 2 Cor UART interface. Exposed Pad. Create a similar pad onthe PCB under the exposed pad. Solder the exposed pad to the pad on the PCB to confer mechanical strength to the package. Connect the pad toAGND and DGND. |
Absolute Maximum Ratings
TA = 25°C, unless otherwise noted.
Table 4.
| Parameter | Rating |
|---|---|
| VDD toAGND | -0.3 Vto+3.7 V |
| VDD toDGND | -0.3 Vto+3.7 V |
| Analog Input Voltage toAGND, IAP , IAN, IBP , IBN, VP, VN | -2 Vto+2 V |
| Reference Input Voltage toAGND | -0.3 VtoVDD + 0.3 V |
| Digital Input Voltage toDGND | -0.3 VtoVDD + 0.3 V |
| Digital Output Voltage toDGND | -0.3 VtoVDD + 0.3 V |
| Operating Temperature Industrial Range | -40°C to +85°C |
| Storage Temperature Range | -65°C to +150°C |
Note that regarding the temperature profile used in soldering RoHS-compliant parts, Analog Devices, Inc., advises that reflow profiles should conform to J-STD 20 from JEDEC. Refer to the JEDEC website for the latest revision.
Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| ADE7953 | Analog Devices | — |
| ADE7953ACPZ | Analog Devices | — |
| ADE7953ACPZ-RL | Analog Devices | — |
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