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AS1531-T Datasheet(PDF) 6 Page - ams AG |
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AS1531-T Datasheet(HTML) 6 Page - ams AG |
6 / 29 page www.austriamicrosystems.com Revision 0.96 6 - 29 AS1530, AS1531 austriamicrosystems Data Sheet AS1531 Electrical Characteristics VDD1 = VDD2 = VDD3 = +2.7 to +3.6V, COM = GND, fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external +2.5V at REF, REFADJ = VDD1, TAMB = TMIN to TMAX (unless otherwise specified). Typ values at TAMB = +25ºC. 9. Electrical characteristics are guaranteed from VDD1(MIN) = VDD2(MIN) = VDD3(MIN) to VDD1(MAX) = VDD2(MAX) = VDD3(MAX). For operations beyond this range, see Typical Operating Characteristics on page 10. For guaranteed specifications beyond the limits, contact austriamicrosystems, AG. 10. AIN = mid-scale; bit RANGE (page 15) = 1; tested with 20pF on DOUT, 20pF on SSTRB, and fSCLK = 6.4MHz @ GND to VDD2. 11. SCLK = DIN = GND, CSN = VDD2. Table 3. AS1531 Electrical Characteristics Symbol Parameter Conditions Min Typ Max Units DC Accuracy 1 Resolution 12 Bits INL Relative Accuracy 2 -1 +1 LSB DNL Differential Nonlinearity No missing codes over temperature -1 +1 LSB Offset Error -6 +6 LSB Gain Error 3 -6 +6 LSB Gain-Error Temperature Coefficient ±1.6 ppm/ °C Channel-to-Channel Offset Error Matching ±0.2 LSB Dynamic Specifications: 75kHz sinewave input, 2.5Vp-p, 300ksps, 4.8MHz clock, bit RANGE (page 15) = 0, pseudo-differential input mode SINAD Signal-to-Noise plus Distortion Ratio 70 dB THD Total Harmonic Distortion Up to the 5th harmonic -81 dB SFDR Spurious-Free Dynamic Range 84 dB IMD Intermodulation Distortion fIN1 = 73kHz, fIN2 = 77kHz 76 dB Channel-to-Channel Crosstalk 4 fIN = 150kHz, VIN = 2.5Vp-p -80 dB Full-Power Bandwidth -3dB point 6 MHz Full-Linear Bandwidth SINAD > 68dB 350 kHz Conversion Rate tCONV Conversion Time 5 Normal operation 3.3 µs tACQ Track/Hold Acquisition Time Normal operation 520 ns tAD Aperture Delay 7 ns tAJ Aperture Jitter <50 ps fSCLK Serial Clock Frequency Normal operation 0.5 4.8 MHz Duty Cycle 40 60 % Analog Inputs: CH0:CH7, COM VCHx - VCHy (COM) Input Voltage Range: Single- Ended, Pseudo-Differential, and Differential 6 Bit RANGE (page 15) = 1 0 VREF V Bit RANGE (page 15) = 0 -VREF /2 +VREF /2 Multiplexer Leakage Current On/off leakage current, VCHx = 0 or AVDD -1 ±0.001 +1 µA Input Capacitance 18 pF Internal Reference VREF REF Output Voltage TAMB = +25°C 2.48 2.50 2.52 V REF Short-Circuit Current 30 mA |
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