Rainbow-electronics MAX1145 Manual do Utilizador

General DescriptionThe MAX1144/MAX1145 are 150ksps, 14-bit ADCs.These serially interfaced ADCs connect directly toSPI™, QSPI™, and MICROWIRE™ devices

MAX1144/MAX1145The user-programmable outputs are set to zero duringpower-on reset or when RST goes low. During hardwareor software shutdown, P0, P1, a

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply ______________________________________________________________________________________ 11SCLKD

MAX1144/MAX1145When internal clock mode is selected, SSTRB does notgo into a high-impedance state when CS goes high.Figure 6 shows the SSTRB timing in

Input Acquisition and SettlingClocking in a control byte starts input acquisition. Themain capacitor array starts acquiring the input as soonas a star

MAX1144/MAX1145magnitude of the offset produced by a synchronoussignal depends on the signal’s shape, recalibrationmay be appropriate if the shape or

Transfer FunctionFigures 8 and 9 show the MAX1145’s transfer functions.In unipolar mode the output data is in binary format andin bipolar mode it is i

MAX1144/MAX1145Signal-to-Noise Plus DistortionSignal-to-noise plus distortion (SINAD) is the ratio of thefundamental input frequency’s RMS amplitude t

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply ______________________________________________________________________________________ 17Order

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embo

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply 2 _______________________________________________________________________________________ABSOL

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply _______________________________________________________________________________________ 3ELECT

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply 4 _______________________________________________________________________________________PARAM

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply _______________________________________________________________________________________ 5TIMIN

MAX1144/MAX11456 _______________________________________________________________________________________Typical Operating Characteristics (continued)(

MAX1144/MAX114514-Bit ADCs, 150ksps, 3.3V Single Supply _______________________________________________________________________________________ 7Pin D

MAX1144/MAX1145Detailed DescriptionThe MAX1144/MAX1145 ADCs use a successive-approximation technique and input track/hold (T/H) cir-cuitry to convert

range is 0 to +2.048V (unipolar) or ±2.048V (bipolar).Unipolar and bipolar mode selection is configured withbit 6 of the serial control byte (Table 1)