MAX1146BCUP+ Maxim Integrated Products, MAX1146BCUP+ Datasheet
MAX1146BCUP+
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MAX1146BCUP+ Summary of contents
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... MAX1149BCUP 0°C to +70°C MAX1149BEUP -40°C to +85°C ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Multichannel, True-Differential, ♦ 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1148/MAX1149) ♦ ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs ABSOLUTE MAXIMUM RATINGS V to AGND, DGND ............................................-0.3V to +6.0V DD AGND to DGND.....................................................-0.3V to +0.3V CH0–CH7, COM to AGND..........................-0. REF, REFADJ to AGND ..............................-0. Digital Inputs to DGND...............................-0. ...
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ELECTRICAL CHARACTERISTICS (continued (MAX1146/MAX1148 duty cycle), 18 clocks/conversion (116ksps), V MAX1148), external 2.500V reference at REF (MAX1147/MAX1149 +25°C.) A PARAMETER SYMBOL Throughput Rate f SAMPLE T/H Acquisition Time Aperture Delay Aperture ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs ELECTRICAL CHARACTERISTICS (continued) = 3.3V (MAX1147/MAX1149), SHDN = (MAX1146/MAX1148 duty cycle), 18 clocks/conversion (116ksps), V MAX1148), external 2.500V reference at REF (MAX1147/MAX1149 +25°C.) A PARAMETER ...
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TIMING CHARACTERISTICS (V = 4.75V to 5.25V (MAX1146/MAX1148 external clock (50% duty cycle), 18 clocks/conversion (116ksps), V for the MAX1146/MAX1148, external 2.500V reference at REF for the MAX1147/MAX1149, T Typical values are +25°C.) (Figures 1, ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs DOUT C LOAD 6kΩ 50pF DGND DGND a) HIGH AND HIGH Figure 1. Load Circuits for Enable Time CS t CSS t t CSH CL SCLK ...
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V DD (50% duty cycle), 18 clocks/conversion (116ksps), V nal +2.500V reference at REF (MAX1147/MAX1149), C INL vs. OUTPUT CODE 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 0 4096 8192 12288 OUTPUT CODE SUPPLY CURRENT vs. ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs (V = +5.0V (MAX1146/MAX1148 (50% duty cycle), 18 clocks/conversion (116ksps), V nal +2.500V reference at REF (MAX1147/MAX1149), C REFERENCE VOLTAGE vs. SUPPLY VOLTAGE (MAX1146/MAX1148) 4.0980 4.0975 4.0970 4.0965 4.0960 4.0955 4.0950 4.0945 ...
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V DD (50% duty cycle), 18 clocks/conversion (116ksps), V nal +2.500V reference at REF (MAX1147/MAX1149), C OFFSET ERROR vs. SUPPLY VOLTAGE (MAX1147/MAX1149 2.7 3.0 SUPPLY VOLTAGE (V) GAIN ERROR ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs (V = +5.0V (MAX1146/MAX1148 (50% duty cycle), 18 clocks/conversion (116ksps), V nal +2.500V reference at REF (MAX1147/MAX1149), C CHANNEL-TO-CHANNEL GAIN MATCHING vs. TEMPERATURE -40 -15 ...
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PIN NAME MAX1148 MAX1146 MAX1149 MAX1147 1 1 CH0 2 2 CH1 3 3 CH2 4 4 CH3 Analog Inputs 5 — CH4 6 — CH5 7 — CH6 8 — CH7 Common Input. Negative analog input in single-ended mode. ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs Detailed Description The MAX1146–MAX1149 ADCs use a successive- approximation conversion technique and input T/H cir- cuitry to convert an analog signal to a 14-bit digital output. A flexible serial interface provides easy inter- face to ...
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ANALOG INPUT MUX CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM Figure 6. Equivalent Input Circuit The MAX1146–MAX1149 feature input tracking circuitry with a 3.0MHz small-signal bandwidth. The 3.0MHz input bandwidth makes it possible to digitize high- speed transient ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs 10Ω A CH7 IN 0.01µF MAX1148 MAX1149 REFADJ 0.01µF REF V REF 2.2µF MAX1149 V = +2.500V REF ≤ COM MAX1148 V = +4.096V REF Figure 7. Quick-Look Circuit Table 1. Control Byte ...
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Table 2. MAX1148/MAX1149 Channel Selection in Single-Ended Mode (SGL/DIF = 1) SEL2 SEL1 SEL0 CH0 ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs In unipolar input mode, the digital output is straight binary (Figure 14). For bipolar input mode, the digital output is two’s complement binary (Figure 15). Data is clocked out on the falling edge of SCLK ...
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CS SCLK 1 CB1 DIN START SEL2 SEL1 SEL0 SGL/DIF UNI/BIP SSTRB DOUT HIGH-Z INPUT MUX SET ACCORDING TO PREVIOUS CONTROL BYTE SET TO CB1 INPUT T/H TRACK Figure 9. Internal Clock Mode Timing—24 Clocks/Conversion Timing CS SCLK 1 CB1 ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs CS SCLK 1 CB1 DIN START SEL2 SEL1 SEL0 SGL/DIFUNI/BIP PD1 t ACQ SSTRB HIGH-Z DOUT SET ACCORDING TO PREVIOUS CONTROL BYTE INPUT MUX SET TO CB1 INPUT T/H TRACK Figure 11. Internal Clock Mode— ...
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REF SAR REF ADC REFERENCE BUFFER DISABLED REFADJ MAX1146– MAX1149 V DD 20kΩ 1.250V DGND BANDGAP REFERENCE AGND Figure 12. External Reference Applied to REF Method 1 allows the direct application of an external reference from 1. ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs V REF 1...111 1...110 1...101 1...100 0...011 0...010 0...001 0...000 INPUT VOLTAGE (LSB) Figure 14. Unipolar Transfer Function edge and is clocked into the µP on SCLK’s rising edge. The first ...
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CS SCK MISO V DD QSPI SS Figure 17. QSPI Connections Table 8. Detailed SSPCON Register Content PICI6/PICI7 CONTROL BIT SETTINGS WCOL Bit 7 X SSPOV Bit 6 X SSPEN Bit 5 1 CKP Bit 4 0 SSPM3 Bit 3 ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs TMS32OLC3x Interface Figure 19 shows an application circuit to interface the MAX1146–MAX1149 to the TMS320 in external clock mode. The timing diagram for this interface circuit is shown in Figure 20. Use the following steps ...
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High-frequency noise in the V power supply degrades DD the device’s high-speed performance. Bypass the sup- ply to the digital ground with 0.1µF and 4.7µF capacitors. Minimize capacitor lead lengths for best supply-noise rejection. Connect a 10Ω resistor in series ...
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Multichannel, True-Differential, Serial, 14-Bit ADCs TOP VIEW CH0 1 CH1 2 CH2 3 CH3 4 N.C. 5 N.C. 6 N.C. 7 N.C. 8 COM 9 SHDN 10 24 ______________________________________________________________________________________ 20 V CH0 SCLK CH1 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 25 © 2007 Maxim Integrated Products ...