Datasheet Si8921/22 (Silicon Labs) - 6

link to page 7 Si8921/22 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
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 4.2 5.2 6.5 mA Output Side Supply Voltage VDDB 3.0 5.5 V Output Supply Current IDDB VDDB = 3.3 V 2.3 3.3 4.1 mA Amplifier Bandwidth 600 kHz
Amplifier Input
Si8921A –62.5 62.5 mV Specified Linear Si8921B –250 250 mV VAIP – VAIN Input Range Si8921A 7.6 62.5 mV Si8922B 30.5 250 mV Maximum Input Si8921A/22A ±77 mV Voltage Before VAIP – VAIN Clipping Si8921B/22B ±310 mV Common-Mode Operating Range1 VCM –0.2 1 V Input Referred Offset VOS TA = 25 °C, AIP = AIN = 0 –0.3 ±0.04 0.3 mV Input Offset Drift VOST –0.3 ±0.5 3 µV/°C Differential Input Si8921A/22A 6.3 kΩ RIN impedance Si8921B/22B 21.4 kΩ Differential Input Impedance Drift RINT 850 ppm/°C
Amplifier Output
Full-Scale Output VAOP – VAON 2.5 Vpk Si8921A/22A 32.8 Gain Si8921B/22B 8.2 Gain Error TA = 25 °C –0.3 ±0.1 0.3 % Gain Error Drift –24 –4 0 ppm/°C Output Common Mode Voltage (VAOP + VAON)/2 1.34 1.39 1.49 V Si8921A TA = 25 °C 0.01 0.04 % Si8921B TA = 25 °C 0.003 0.02 % Nonlinearity Si8922A TA = 25 °C 0.02 0.08 % Si8921B TA = 25 °C 0.01 0.04 % Nonlinearity Drift –16 16 ppm/°C
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| Building a more connected world. Preliminary Rev. 0.5 | 6 Document Outline 1. Ordering Guide 2. System Overview 3. Current Sense Application 4. Electrical Specifications 4.1 Regulatory Information 4.2 Typical Operating Characteristics 5. Pin Descriptions 5.1 Si8921 Pin Descriptions 5.2 Si8922 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