EVALUATION KIT AVAILABLE MAX11044/MAX11044B/MAX11045/ MAX11045B/MAX11046/MAX11046B/ MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs General Description Applications Automatic Test Equipment Power-Factor Monitoring and Correction Power-Grid Protection Multiphase Motor Control Vibration and Waveform Analysis Ordering Information 8-Channel ADC (MAX11046/MAX11046B/MAX11056) 6-Channel ADC (MAX11045/MAX11045B/MAX11055) 4-Channel ADC (MAX11044/MAX11044B/MAX11054) o Single An
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs ABSOLUTE MAXIMUM RATINGS AVDD to AGND ........................................................-0.3V to +6V DVDD to AGND and DGND .....................................-0.3V to +6V DGND to AGND.....................................................-0.3V to +0.3V AGNDS to AGND...................................................-0.3V to +0.3V CH0–CH7 to AGND ................
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs ELECTRICAL CHARACTERISTICS (continued) (VAVDD = +4.75V to +5.25V, VDVDD = +2.70V to +5.25V, VAGNDS = VAGND = VDGND = 0V, VREFIO = internal reference, CRDC = 4 x 33μF, CREFIO = 0.1μF, CAVDD = 4 x 0.1μF || 10μF, CDVDD = 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise noted, fSAMPLE = 250ksps. TA = -40°C to +85°C, unless otherwise noted.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs ELECTRICAL CHARACTERISTICS (continued) (VAVDD = +4.75V to +5.25V, VDVDD = +2.70V to +5.25V, VAGNDS = VAGND = VDGND = 0V, VREFIO = internal reference, CRDC = 4 x 33µF, CREFIO = 0.1µF, CAVDD = 4 x 0.1µF || 10µF, CDVDD = 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted, fSAMPLE = 250ksps. TA = -40°C to +85°C, unless otherwise noted.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs ELECTRICAL CHARACTERISTICS (continued) (VAVDD = +4.75V to +5.25V, VDVDD = +2.70V to +5.25V, VAGNDS = VAGND = VDGND = 0V, VREFIO = internal reference, CRDC = 4 x 33μF, CREFIO = 0.1μF, CAVDD = 4 x 0.1μF || 10μF, CDVDD = 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise noted, fSAMPLE = 250ksps. TA = -40°C to +85°C, unless otherwise noted.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Typical Operating Characteristics (continued) (VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.) INL AND DNL (LSB) 0.4 0.2 0 -0.2 VAVDD = 5.25V VDVDD = 3.3V fSAMPLE = 250ksps TA = +25°C VRDC = 4.096V 64 HITS PER CODE -0.6 -0.8 -1.0 VDVDD = 3.3V fSAMPLE = 250ksps TA = +25°C VRDC = 4.096V MAX DNL 0.2 MIN INL -0.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Typical Operating Characteristics (continued) (VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.) VDVDD = 3.3V fSAMPLE = 250ksps CDBxx = 15pF 1.2 IAVDD 2 IDVDD -15 -40 10 35 60 -40 85 -15 10 35 60 4.112 MAX1960 toc10 TA = +25°C 4.09620 4.104 4.09615 4.100 VRDC 4.09610 VAVDD = 5.0V 4.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Typical Operating Characteristics (continued) (VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.) GAIN ERROR AND GAIN ERROR MATCHING vs. TEMPERATURE ERRORS (%FS) ERRORS (%FS) 0.002 -0.002 GAIN ERROR MATCHING 0.002 -0.002 fIN = 10kHz fSAMPLE = 250ksps TA = +25°C VAVDD = 5.0V SNR = 92.3dB SINAD = 92.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Typical Operating Characteristics (continued) (VAVDD = 5V, VDVDD = 3.3V, TA = +25°C, fSAMPLE = 250ksps, internal reference, unless otherwise noted.) SIGNAL-TO-NOISE AND DISTORTION RATIO vs. FREQUENCY (MAX1104_) 92 88 -106 -100 fSAMPLE = 250ksps TA = +25°C VAVDD = 5.0V VRDC = 4.096V VIN = -0.025dB from FS 86 84 -105 82 -107 4.85 4.95 5.05 5.15 -110 0.1 5.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description PIN MAX11044/ MAX11044B (TQFN-EP) MAX11045/ MAX11045B (TQFN-EP) MAX11046/ MAX11046B (TQFN-EP) NAME 1 1 1 DB13 16-Bit Parallel Data Bus Digital Output Bit 13 2 2 2 DB12 16-Bit Parallel Data Bus Digital Output Bit 12 3 3 3 DB11 16-Bit Parallel Data Bus Digital Output Bit 11 4 4 4 DB10 16-Bit Parallel Data Bus Digital Output Bit 10
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description (continued) MAX11044/ MAX11044B (TQFN-EP) MAX11045/ MAX11045B (TQFN-EP) MAX11046/ MAX11046B (TQFN-EP) NAME 24, 30, 41, 47 24, 30, 41, 47 24, 30, 41, 47 AVDD 25, 31, 40, 46 25, 31, 40, 46 25, 31, 40, 46 AGND 32 29 26 CH0 Channel 0 Analog Input 34 32 29 CH1 Channel 1 Analog Input 37 34 32 CH2 Channel 2 Analog Input 39 37 34
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description (continued) PIN MAX11044/ MAX11044B (TQFP-EP) MAX11045/ MAX11045B (TQFP-EP) MAX11046/ MAX11046B (TQFP-EP) NAME 1 1 1 DB14 16-Bit Parallel Data Bus Digital Output Bit 14 2 2 2 DB13 16-Bit Parallel Data Bus Digital Output Bit 13 3 3 3 DB12 16-Bit Parallel Data Bus Digital Output Bit 12 4 4 4 DB11 16-Bit Parallel Data Bus Digital Ou
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description (continued) MAX11044/ MAX11044B (TQFP-EP) MAX11045/ MAX11045B (TQFP-EP) MAX11046/ MAX11046B (TQFP-EP) NAME 26, 55 26, 55 26, 55 RDC_SENSE 27, 33, 40, 48, 54 27, 33, 40, 48, 54 27, 33, 40, 48, 54 RDC Reference Buffer Decoupling. Connect all RDC outputs together. Bypass to AGND with at least an 80μF total capacitance.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description (continued) PIN MAX11054 (TQFP-EP) MAX11055 (TQFP-EP) MAX11056 (TQFP-EP) NAME 1 1 1 DB12 14-Bit Parallel Data Bus Digital Output Bit 12 2 2 2 DB11 14-Bit Parallel Data Bus Digital Output Bit 11 3 3 3 DB10 14-Bit Parallel Data Bus Digital Output Bit 10 4 4 4 DB9 14-Bit Parallel Data Bus Digital Output Bit 9 5 5 5 DB8 14-Bit P
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Pin Description (continued) PIN NAME FUNCTION 27, 33, 40, 48, 54 RDC Reference Buffer Decoupling. Connect all RDC outputs together. Bypass to AGND with at least an 80μF total capacitance. See the Layout, Grounding, and Bypassing section.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs an internal bandgap reference circuit (V REFIO = 4.096V). Drive REFIO with an external reference or bypass with 0.1μF capacitor to ground when using the internal reference. Analog Inputs Track and Hold (T/H) To preserve phase information across all channels, each input includes a dedicated T/H circuitry.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs VFAULT _ MAX - 7V 20mA where VFAULT_MAX is the maximum voltage that the source produces during a fault condition. Figures 2 and 3 illustrate the clamp circuit voltage-current characteristics for a source impedance R S = 1280Ω. While the input voltage is within the ±(VAVDD + 300mV) range, no current flows in the input clamps.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Starting a Conversion Reading Conversion Results CONVST initiates conversions. The MAX11044/MAX11044B MAX11045/MAX11045B/MAX11046/MAX11046B and MAX11054/MAX11055/MAX11056 provide two acquisition modes set through the configuration register.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs SAMPLE tCON tACQ CONVST t1 EOC tO tQ CS RD DB0–DB15/DB13 S0 S1 S6 S7 Figure 6. Conversion Timing Diagram (CR0 = 0) SAMPLE tCON tACQ CONVST t2 EOC tO tQ CS RD DB0–DB15/DB13 S0 S1 S6 S7 Figure 7.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Reference Buffer The MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B and MAX11054/MAX11055/ MAX11056 have a built-in reference buffer to provide a low-impedance reference source to the SAR converters. This buffer is used in both internal and external reference mode. The reference buffer output feeds five RDC pins.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs VOLTAGE TRANSFORMER PHASE 1 OPT ADC OPT ADC CURRENT TRANSFORMER VN NEUTRAL ADC IN ADC MAX11046 MAX11046B MAX11056 LOAD 1 LOAD 2 LOAD 3 I3 V3 I2 ADC ADC PHASE 2 V2 ADC ADC PHASE 3 Figure 10.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs MAX11044 MAX11044B MAX11045 MAX11045B MAX11046 MAX11046B MAX11054 MAX11055 MAX11056 DSP-BASED DIGITAL PROCESSING ENGINE 16-/14-BIT ADC IGBT CURRENT DRIVERS 16-/14-BIT ADC 16-/14-BIT ADC 16-/14-BIT ADC 16-/14-BIT ADC IPHASE1 IPHASE3 IPHASE2 3-PHASE ELECTRIC MOTOR POSITION ENCODER Figure 11.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Layout, Grounding, and Bypassing For best performance use PCBs with ground planes. Ensure that digital and analog signal lines are separated from each other. Do not run analog and digital lines parallel to one another (especially clock lines), and avoid running digital lines underneath the ADC package.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs (10/4.096) x VREF x (16,382/16,384) for 14-bit devices. For the MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B, top code transition is 0x7FFE to 0x7FFF in two’s complement mode and 0xFFFE to 0xFFFF in offset binary mode. The bottom code transition is 0x8000 and 0x8001 in two’s complement mode and 0x0000 and 0x0001 in offset binary mode.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Positive Full-Scale Error The error in the input voltage that causes the last code transition of FFFE to FFFF (hex) for 16-bit or 3FFE to 3FFF (hex) for 14-bit devices (in default offset binary mode) or 7FFE to 7FFF (hex) for 16-bit or 1FFE to 1FFF (hex) for 14bit devices (in two’s complement mode) from the ideal input voltage of 32,766.5 x (10/4.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs RDC CH1*/CH0†/I.C.‡ AVDD AGND CH2*/CH1†/CH0‡ AGNDS CH3*/CH2†/CH1‡ RDC REFIO CH4*/CH3†/CH2‡ AGNDS CH5*/CH4†/CH3‡ AGND AVDD CH6*/CH5†/I.C.‡ RDC Pin Configurations (continued) 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 AGNDS AGNDS 49 31 CH0*/I.C.†‡ I.C.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Chip Information PROCESS: BiCMOS Ordering Information (continued) PART MAX11046ETN+ Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only.
MAX11044/MAX11044B/MAX11045/MAX11045B/ MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056 4-/6-/8-Channel, 16-/14-Bit, Simultaneous-Sampling ADCs Revision History REVISION NUMBER REVISION DATE 0 10/09 Initial release 1 3/10 Added TQFP package to data sheet 1, 2, 8, 9, 19 2 5/10 Added 14-bit MAX11054/MAX11055/MAX11056 1–4, 7, 9–26 3 9/10 Style edits, specified part numbers in Typical Operating Characteristics, corrected pin names, clarified layout 4 10/10 Released the TQFP versions of MAX11044,