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MCP3919 Datasheet(PDF) 6 Page - Microchip Technology |
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MCP3919 Datasheet(HTML) 6 Page - Microchip Technology |
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6 / 88 page  MCP3919 DS20005347A-page 6 2014 Microchip Technology Inc. Operating Current, Analog (Note 2) IDD,A — 2.1 3.1 mA BOOST<1:0> = 00 — 2.6 3.9 mA BOOST<1:0> = 01 — 3.5 4.9 mA BOOST<1:0> = 10 — 6.1 8.8 mA BOOST<1:0> = 11 Operating Current, Digital IDD,D — 0.26 0.45 mA MCLK = 4 MHz, proportional to MCLK (Note 2) — 1 — mA MCLK = 16 MHz, proportional to MCLK (Note 2) Shutdown Current, Analog IDDS,A —0.01 2 µA AVDD pin only (Note 3), (Note 8) Shutdown Current, Digital IDDS,D —0.01 4 µA DVDD pin only (Note 3), (Note 8) Pull-Down Current on OSC2 Pin (External Clock mode only) IOSC2 — 35 — µA CLKEXT = 1 TABLE 1-1: ANALOG SPECIFICATIONS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all parameters apply at AVDD = DVDD = 3V, MCLK = 4 MHz; PRE<1:0> = 00 ; OSR = 256; GAIN = 1; VREFEXT = 0, CLKEXT = 1, DITHER<1:0> = 11; BOOST<1:0> = 10, VCM =0V; TA = -40°C to +125°C;VIN = -0.5 dBFS @ 50/60 Hz on all channels. Characteristic Sym. Min. Typ. Max. Units Conditions Note 1: Dynamic Performance specified at -0.5 dB below the maximum differential input value, VIN =1.2 VPP = 424 mVRMS @ 50/60 Hz, VREF = 1.2V. See Section 4.0 “Terminology And Formulas” for definition. This parameter is established by characterization and not 100% tested. 2: For these operating currents, the following configuration bit settings apply: SHUTDOWN<2:0> = 000 , RESET<2:0> = 000 , VREFEXT = 0, CLKEXT = 0. 3: For these operating currents, the following configuration bit settings apply: SHUTDOWN<2:0> = 111 , VREFEXT = 1, CLKEXT = 1. 4: Measured on one channel versus all others channels. The specification is the average of crosstalk performance over all channels (see Figure 2-32 for individual channel performance). 5: Applies to all gains. Offset and gain errors depend on PGA gain setting, see typical performance curves for typical performance. 6: Outside of this range, ADC accuracy is not specified. An extended input range of +/-2V can be applied continuously to the part with no damage. 7: For proper operation and for optimizing ADC accuracy, AMCLK should be limited to the maximum frequency defined in Table 5-2, as a function of the BOOST and PGA setting chosen. MCLK can take larger values as long as the prescaler settings (PRE<1:0>) limit AMCLK = MCLK/PRESCALE in the defined range in Table 5-2. 8: This parameter is established by characterization and not 100% tested. |
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