Datasheet Si8941/46/47 (Silicon Labs) - 8
| Hersteller | Silicon Labs |
| Beschreibung | Isolated Delta-Sigma Modulator for Current Shunt Measurement |
| Seiten / Seite | 35 / 8 — 4. Electrical Specifications. Table 4.1. Electrical Specifications. … |
| Revision | 0.5 |
| Dateiformat / Größe | PDF / 542 Kb |
| Dokumentensprache | Englisch |
4. Electrical Specifications. Table 4.1. Electrical Specifications. Parameter. Symbol. Test Condition. Min. Typ. Max. Units
Modelllinie für dieses Datenblatt
Textversion des Dokuments
link to page 9 Si8941/46/47 Data Sheet Electrical Specifications
4. Electrical Specifications Table 4.1. Electrical Specifications
VDDA, VDDB = 5 V, TA = –40 to +125 °C; typical specs at 25 °C , SINC3 filter with 256 oversampling ratio and 20 MHz clock
Parameter Symbol Test Condition Min Typ Max Units
Input Side Supply Voltage VDDA 3.0 5.5 V Input Supply Current IDDA VDDA = 3.3 V 6.3 6.9 8.9 mA Output Side Supply Voltage VDDB 3.0 5.5 V Output Supply Si8941 4 mA IDDB VDDB = 3.3 V Current Si8946/47 8 mA
Amplifier Input
Specified Linear Si8941A/46A/47A –62.5 62.5 mV VAIP – VAIN Input Range Si8941B/46B/47B –250 250 mV Maximum Input Si8941A/46A/47A ±80 mV Voltage Before VAIP – VAIN Clipping Si8941B/46B/47B ±320 mV Common-Mode Operating Range1 VCM –0.2 1 V Input Offset VOS TA = 25 °C, AIP = AIN = 0 –0.2 ±0.04 0.2 mV Input Offset Drift VOST –0.4 ±0.15 2 µV/°C Gain Error EG TA = 25 °C –0.3 ±0.1 0.3 % Gain Error Drift EGT –40 ±14 40 ppm/°C Differential Input Si8941A/46A/47A 6.3 kΩ RIN Impedance Si8941B/46B/47B 21.4 kΩ Differential Input Impedance Drift RINT 850 ppm/°C
Dynamic Characteristics
Si8941A/46A/47A FIN = 5 kHz 80 86 dB SNR SNR BW = 40 kHz (Si8941/47) Si8941B/46B/47B 84 90 dB BW = 20 kHz (Si8946) Si8941A/46A/47A –0.032 0.004 0.032 % Nonlinearity TA = 25 °C Si8941B/46B/47B –0.016 0.002 0.016 % Nonlinearity Drift Si8941/46/47 TA = 25 °C –0.46 0.46 ppm/°C FIN = 5 kHz Si8941A/46A/47A THD BW = 40 kHz (Si8941/47) –95 –82 dB Total Harmonic BW = 20 kHz (Si8946) Distortion FIN = 5 kHz Si8941B/46B/47B THD BW = 40 kHz (Si8941/47) –97 –84 dB BW = 20 kHz (Si8946)
silabs.com
| Building a more connected world. Preliminary Rev. 0.5 | 8 Document Outline 1. Ordering Guide 2. System Overview 2.1 Modulator 3. Current Sense Application 4. Electrical Specifications 4.1 Regulatory Information 4.2 Typical Operating Characteristics 5. Pin Descriptions 6. Packaging 6.1 Package Outline: 8-Pin Wide Body Stretched SOIC 6.2 Package Outline: 8-Pin Narrow Body SOIC 6.3 Land Pattern: 8-Pin Wide Body Stretched SOIC 6.4 Land Pattern: 8-Pin Narrow Body SOIC 6.5 Top Marking: 8-Pin Wide Body Stretched SOIC 6.6 Top Marking: 8-Pin Narrow Body SOIC 7. Revision History
4. Electrical Specifications Table 4.1. Electrical Specifications
VDDA, VDDB = 5 V, TA = –40 to +125 °C; typical specs at 25 °C , SINC3 filter with 256 oversampling ratio and 20 MHz clock
Parameter Symbol Test Condition Min Typ Max Units
Input Side Supply Voltage VDDA 3.0 5.5 V Input Supply Current IDDA VDDA = 3.3 V 6.3 6.9 8.9 mA Output Side Supply Voltage VDDB 3.0 5.5 V Output Supply Si8941 4 mA IDDB VDDB = 3.3 V Current Si8946/47 8 mA
Amplifier Input
Specified Linear Si8941A/46A/47A –62.5 62.5 mV VAIP – VAIN Input Range Si8941B/46B/47B –250 250 mV Maximum Input Si8941A/46A/47A ±80 mV Voltage Before VAIP – VAIN Clipping Si8941B/46B/47B ±320 mV Common-Mode Operating Range1 VCM –0.2 1 V Input Offset VOS TA = 25 °C, AIP = AIN = 0 –0.2 ±0.04 0.2 mV Input Offset Drift VOST –0.4 ±0.15 2 µV/°C Gain Error EG TA = 25 °C –0.3 ±0.1 0.3 % Gain Error Drift EGT –40 ±14 40 ppm/°C Differential Input Si8941A/46A/47A 6.3 kΩ RIN Impedance Si8941B/46B/47B 21.4 kΩ Differential Input Impedance Drift RINT 850 ppm/°C
Dynamic Characteristics
Si8941A/46A/47A FIN = 5 kHz 80 86 dB SNR SNR BW = 40 kHz (Si8941/47) Si8941B/46B/47B 84 90 dB BW = 20 kHz (Si8946) Si8941A/46A/47A –0.032 0.004 0.032 % Nonlinearity TA = 25 °C Si8941B/46B/47B –0.016 0.002 0.016 % Nonlinearity Drift Si8941/46/47 TA = 25 °C –0.46 0.46 ppm/°C FIN = 5 kHz Si8941A/46A/47A THD BW = 40 kHz (Si8941/47) –95 –82 dB Total Harmonic BW = 20 kHz (Si8946) Distortion FIN = 5 kHz Si8941B/46B/47B THD BW = 40 kHz (Si8941/47) –97 –84 dB BW = 20 kHz (Si8946)
silabs.com
| Building a more connected world. Preliminary Rev. 0.5 | 8 Document Outline 1. Ordering Guide 2. System Overview 2.1 Modulator 3. Current Sense Application 4. Electrical Specifications 4.1 Regulatory Information 4.2 Typical Operating Characteristics 5. Pin Descriptions 6. Packaging 6.1 Package Outline: 8-Pin Wide Body Stretched SOIC 6.2 Package Outline: 8-Pin Narrow Body SOIC 6.3 Land Pattern: 8-Pin Wide Body Stretched SOIC 6.4 Land Pattern: 8-Pin Narrow Body SOIC 6.5 Top Marking: 8-Pin Wide Body Stretched SOIC 6.6 Top Marking: 8-Pin Narrow Body SOIC 7. Revision History