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Smart metering Analog Front End (AFE) ICs offer high accuracy when measuring DC and AC energy down to extremely low currents typical of home appliances in standby mode.
| Part Number | Package | Marketing Status | Number of Channels max () | Active Power Accuracy(%) spec () | Dynamic Range | Bandwidth (@ -3dB) spec (kHz) | Features | Communication Interface |
| STPM01 | TSSOP 20 | Active | 2 | 0.1 | 41.66736111111111 | 0.4 | Active, reactive, apparent energies and RMS, OTP, anti-tamper | SPI |
| STPM10 | TSSOP 20 | Active | 2 | 0.1 | 41.66736111111111 | 0.8 | HW registers, Voltage line frequency, anti-tamper | SPI |
| STPM11 | TSSOP 20 | NRND | 2 | 0.1 | 41.66736111111111 | 0.4 | All sensors supported, No load, negative power | Pulsed output |
| STPM12 | TSSOP 20 | NRND | 2 | 0.1 | 41.66736111111111 | 0.4 | All sensors supported, No load, negative power | Pulsed output |
| STPM13 | TSSOP 20 | NRND | 2 | 0.1 | 41.66736111111111 | 0.4 | All sensors supported, No load, negative power, anti-tamper | Pulsed output |
| STPM14 | TSSOP 20 | NRND | 2 | 0.1 | 41.66736111111111 | 0.4 | All sensors supported, No load, negative power, anti-tamper | Pulsed output |
| STPM32 | QFN-24L | Active | 2 | 0.1 | 208.3340277777778 | 4 | All sensors supported, voltage line frequency, SAG, SWELL, ZC | SPI, UART |
| STPM33 | VFQFPN 32 5x5x1.0 | Active | 3 | 0.1 | 208.3340277777778 | 4 | All sensors supported, voltage line frequency, SAG, SWELL, ZC | SPI, UART |
| STPM34 | VFQFPN 32 5x5x1.0 | Active | 4 | 0.1 | 208.3340277777778 | 4 | All sensors supported, voltage line frequency, SAG, SWELL, ZC | SPI, UART |
| STPMC1 | TSSOP 20 | Active | 5 | 0.1 | 41.66736111111111 | 0.4 | Hall and temperature sensors supported, anti-tamper | SPI |
| STPMS1 | VFQFPN 16 3x3x0.9 | Active | 2 | - | - | 2 | ASSP, I/V measurement | Serial |
| STPMS2 | VFQFPN 16 4x4x1.0 | Active | 2 | - | - | 4 | ASSP, Hall sensors supported, I/V measurement | Serial |
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