MAX1303BEUP+T Maxim Integrated, MAX1303BEUP+T Datasheet
MAX1303BEUP+T
Specifications of MAX1303BEUP+T
Related parts for MAX1303BEUP+T
MAX1303BEUP+T Summary of contents
Page 1
... Avionics Robotics QSPI is a trademark of Motorola, Inc. MICROWIRE is a registered trademark of National Semiconductor Corp. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. REF o Software-Programmable Input Range for Each ...
Page 2
REF Serial 16-Bit ADC ABSOLUTE MAXIMUM RATINGS AVDD1 to AGND1 ....................................................-0.3V to +6V AVDD2 to AGND2 ....................................................-0.3V to +6V DVDD to DGND ........................................................-0.3V to +6V DVDDO to DGNDO ..................................................-0.3V to +6V DVDD to DVDDO......................................................-0.3V to +6V DVDD, DVDDO ...
Page 3
ELECTRICAL CHARACTERISTICS (continued AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (± 50pF, ...
Page 4
REF Serial 16-Bit ADC ELECTRICAL CHARACTERISTICS (continued AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (±V ...
Page 5
ELECTRICAL CHARACTERISTICS (continued AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (± 50pF, ...
Page 6
REF Serial 16-Bit ADC ELECTRICAL CHARACTERISTICS (continued AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (±V ...
Page 7
AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (± 50pF, C REF DOUT ...
Page 8
REF Serial 16-Bit ADC ( 5V, V AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (±V ...
Page 9
AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (± 50pF, C REF DOUT ...
Page 10
REF Serial 16-Bit ADC ( 5V, V AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (±V ...
Page 11
AVDD1 AVDD2 DVDD DVDDO cycle), external clock mode 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (± 50pF, C REF DOUT ...
Page 12
REF Serial 16-Bit ADC PIN NAME 1 AGND1 Analog Ground 1. DGND, DGNDO, AGND3, AGND2, and AGND1 must be connected together. Analog Supply Voltage 1. Connect AVDD1 to a +4.75V to +5.25V power-supply voltage. Bypass AVDD1 to 2 ...
Page 13
Detailed Description The MAX1303 multirange, low-power, 16-bit successive- approximation ADC operates from a single +5V supply and has a separate digital supply allowing digital interface with 2.7V to 5.25V systems. This 16-bit ADC has internal track- and-hold (T/H) ...
Page 14
REF Serial 16-Bit ADC Track-and-Hold Circuitry The MAX1303 features a switched-capacitor T/H archi- tecture that allows the analog input signal to be stored as charge on sampling capacitors. See Figures 1, 2, and 3 for T/H timing and ...
Page 15
CS SSTRB SCLK BYTE 1 DIN DOUT ANALOG INPUT TRACK AND HOLD* HOLD TRACK INTCLK** *TRACK AND HOLD TIMING IS CONTROLLED BY SCLK. **INTCLK IS AN INTERNAL SIGNAL AND IS ...
Page 16
REF Serial 16-Bit ADC CS SSTRB SCLK BYTE 1 DIN DOUT t ANALOG INPUT TRACK AND HOLD* HOLD TRACK INTCLK** *TRACK AND HOLD TIMING IS CONTROLLED BY INTCLK, AND IS ...
Page 17
Table 3. Input Data Word Formats OPERATION Conversion-Start Byte (Tables 4 and 5) Analog-Input Configuration Byte (Table 2) Mode-Control Byte (Table 7) Table 4. Channel Selection in Single-Ended Mode (DIF/SGL = 0) CHANNEL-SELECT BIT CH0 ...
Page 18
REF Serial 16-Bit ADC Analog Input Bandwidth The MAX1303 input-tracking circuitry has a 1.5MHz small-signal bandwidth. The 1.5MHz input bandwidth makes it possible to digitize high-speed transient events. Harmonic distortion increases when digitizing signal fre- quencies above 15kHz ...
Page 19
Differential Common-Mode Range The MAX1303 differential common-mode range (V ) must remain within -4.75V to +5.5V to obtain CMDR valid conversion results. The differential common-mode range is defined as CMDR ...
Page 20
REF Serial 16-Bit ADC Table 6. Range-Select Bits DIF/SGL ...
Page 21
Serial Strobe Output (SSTRB) As shown in Figures 2 and 3, the SSTRB transitions high to indicate that the ADC has completed a conversion and results are ready to be read by the master. SSTRB remains low in ...
Page 22
REF Serial 16-Bit ADC FSR FFFF FFFE FFFD 8001 8000 7FFF 0003 0002 1 LSB = 0001 0000 32,768 INPUT VOLTAGE (LSB [DECIMAL]) (AGND1) Figure 13. Ideal Unipolar Transfer Function, Single-Ended Input ...
Page 23
CSS SCLK DIN START SEL2 SEL1 SEL0 ANALOG INPUT CONFIGURATION BYTE t DV HIGH DOUT IMPEDANCE Figure 14. Analog Input Configuration Byte and Mode-Control Byte Timing SSTRB t SSCS CS ...
Page 24
REF Serial 16-Bit ADC Table 8. Mode-Control Bits M[2: Full Power-Down ...
Page 25
SAR ADC REF MAX1303 5kΩ 4.096V BANDGAP REFERENCE Figure 17. External Reference Operation BRIDGE Figure 18. Bridge Application Applications Information Additional samples can be taken and averaged (over- sampling) to remove the effect of transition noise on conversion ...
Page 26
REF Serial 16-Bit ADC Bridge Application The MAX1303 converts 1kHz signals more accurately than a similar sigma-delta converter that might be consid- ered in bridge applications. Connect the bridge to a low- offset differential amplifier and then the ...
Page 27
When a positive full-scale voltage is applied to the con- verter inputs, the digital output is all ones (0xFFFF). The transition from 0xFFFE to 0xFFFF occurs at 1.5 LSB below full scale. Gain error is the amount of ...
Page 28
REF Serial 16-Bit ADC Total Harmonic Distortion (THD) For the MAX1303, THD is the ratio of the RMS sum of the input signal’s first four harmonic components to the fundamental itself. This is expressed as: ⎛ ...
Page 29
... Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 29 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2012 Maxim Integrated Products ...