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AMC7832IPAP 数据表(PDF) 8 Page - Texas Instruments |
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AMC7832IPAP 数据表(HTML) 8 Page - Texas Instruments |
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8 / 74 page  AMC7832 SLAS836 – MARCH 2014 www.ti.com 7.5 Electrical Characteristics The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of the product containing it. AVDD = DVDD = +4.5 to +5.5-V, AVCC = +12-V, AVEE = -12-V, IOVDD = +1.8 to +5.5-V, AGND = DGND = 0-V, AVSSA,B,C,D = 0-V (DAC groups in positive ranges) or -12-V (DAC groups in negative range), DAC output range = 0 to 10-V for all groups, no load on the DACs, TA = -40°C to +105°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DAC SPECIFICATIONS DAC DC ACCURACY Resolution 12 Bits Measured by line passing through codes 020h and FFFh. ±1 0 to +10-V and -10 to 0-V ranges INL Relative accuracy LSB Measured by line passing through codes 040h and FFFh. ±1.5 0 to +5-V range Specified monotonic. Measured by line passing through codes 020h and FFFh. DNL Differential nonlinearity 0 to +10-V and -10 to 0-V ranges. ±0.3 ±1 LSB Measured by line passing through codes 040h and FFFh. 0 to +5-V range TA = 25°C ±20 mV 0 to +10-V range and -10 to 0-V ranges TUE Total unadjusted error(1) TA = 25°C ±10 mV 0 to +5-V range TA = 25°C, Measured by line passing through codes 020h and FFFh, ±5 mV 0 to +10-V range Offset error TA = 25°C, Measured by line passing through codes 040h and FFFh, ±5 mV 0 to +5-V range Zero-code error TA = 25°C, Code 000h, -10 to 0-V range ±20 mV TA = 25°C, Measured by line passing through codes 020h and FFFh, ±0.2 %FSR 0 to +10-V and -10 to 0-V ranges Gain error(1) TA = 25°C, Measured by line passing through codes 040h and FFFh, ±0.2 %FSR 0 to +5-V range Offset temperature coefficient 0 to +10-V and 0 to +5-V ranges ±1 ppm/°C Zero-code temperature coefficient -10 to 0-V range ±2 ppm/°C Gain temperature coefficient All output ranges ±1 ppm/°C DAC OUTPUT CHARACTERISTICS VRANGEn terminal set to AGND 0 10 V DAC-5VRANGEn bit set to 0 VRANGEn terminal set to AGND Full-scale output voltage range(2) 0 5 V DAC-5VRANGEn bit set to 1 VRANGEn terminal set to +2.5V –10 0 V DAC-5VRANGEn bit set to 0 Transition: Code 400h to C00h to within ½ LSB, RL = 2kΩ, CL = 200pF, 10 µs 0 to +10-V and -10 to 0-V ranges Output voltage settling time Transition: Code 400h to C00h to within ½ LSB, RL = 2kΩ, CL = 200pF, 8 µs 0 to +5-V range (1) Internal reference contribution not included. (2) The output voltage cannot be greater than AVCC or lower than AVSS. See the DAC Output Range Selection section for more details. 8 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: AMC7832 |
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