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XRD6406 Dataheets PDF



Part Number XRD6406
Manufacturers Exar Corporation
Logo Exar Corporation
Description High Speed Analog-to-Digital Converter
Datasheet XRD6406 DatasheetXRD6406 Datasheet (PDF)

www.DataSheet4U.com CMOS 6 MSPS, 10-Bit, High Speed Analog-to-Digital Converter FEATURES · · · · · · · · · · · 10-Bit Resolution Sampling Rate to 6 MSPS DNL = +1 LSB, INL = +2 LSB Internal S/H Function Single 5V Power Supply VIN DC Range: 0V to VDD VREF DC Range: 1V to VDD Low Power: 65mW Three-State Digital Outputs Latch-Up Free Pin Compatible With: MP8784 APPLICATIONS · Digital Color Copiers · Precision CCDs and Scanners · Digital Radio BENEFITS · · · · Simplified Analog Design Rugged Few Ext.

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www.DataSheet4U.com CMOS 6 MSPS, 10-Bit, High Speed Analog-to-Digital Converter FEATURES · · · · · · · · · · · 10-Bit Resolution Sampling Rate to 6 MSPS DNL = +1 LSB, INL = +2 LSB Internal S/H Function Single 5V Power Supply VIN DC Range: 0V to VDD VREF DC Range: 1V to VDD Low Power: 65mW Three-State Digital Outputs Latch-Up Free Pin Compatible With: MP8784 APPLICATIONS · Digital Color Copiers · Precision CCDs and Scanners · Digital Radio BENEFITS · · · · Simplified Analog Design Rugged Few External Components, no S/H Needed Reduced Board Space June 1998-2 XRD6406 GENERAL DESCRIPTION The XRD6406 is a 10-bit, 6 MSPS, Analog-to-Digital Converter for applications that require high speed and high accuracy. Designed using an advanced CMOS process, this part offers excellent performance, low power consumption and latch-up free operation. The XRD6406 uses a subranging architecture to maintain low power consumption at high conversion rates. Our proprietary comparator design achieves a low analog input capacitance. The input circuitry of the XRD6406 includes an on-chip S/H function that allows this part to digitize analog input signals between AGND and AVDD. The designer can choose the internally generated reference voltages, or provide external reference voltages to the VRB and VRT pins. The internal reference generates 1.0V at VRB and 4V at VRT. Providing external reference voltages allows easy interface to any input signal range between GND and VDD. This also allows the system to cancel zero scale and full scale errors. The Reference Ladder taps (R1 to R3) can be used to externally trim any INL errors. This device operates from a single 5V supply. Power consumption from a 5V supply is typically 65mW at FS=6MHz. SIMPLIFIED BLOCK DIAGRAM AVDD VDD VRTS VRT R1-R3 VRB VRBS S/H VIN Clock Logic CLK OE DVDD DGND 3 MSB Comparators Latch Encoder LSB Comparators Latch F/F DB0 (LSB) DB9 (MSB) AGND Rev. 1.00 E1998 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017 XRD6406 ORDERING INFORMATION Package Type Plastic Dip SOIC Temperature Range --40 to +85°C --40 to +85°C Part No. XRD6406AIP XRD6406AID DNL (LSB) ¦1 ¦1 INL (LSB) ¦2 ¦2 PIN CONFIGURATIONS OE DB0 (LSB) DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 (MSB) CLK 1 2 3 4 5 6 7 8 9 10 11 12 See Packaging Section for Package Dimensions 24 23 22 21 20 19 18 17 16 15 14 13 DGND VRB VRBS R1 AGND VIN AVDD R2 R3 VRT VRTS DVDD OE DB0 (LSB) DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 (MSB) CLK 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 DGND VRB VRBS R1 AGND VIN AVDD R2 R3 VRT VRTS DVDD 24 Pin PDIP (0.300”) 24 Pin SOIC (Jedec, 0.300”) PIN OUT DEFINITIONS PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 NAME OE DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8 DB9 CLK DESCRIPTION Output Enable Data Output Bit 0 (LSB) Data Output Bit 1 Data Output Bit 2 Data Output Bit 3 Data Output Bit 4 Data Output Bit 5 Data Output Bit 6 Data Output Bit 7 Data Output Bit 8 Data Output Bit 9 (MSB) Clock Input PIN NO. 13 14 15 16 17 18 19 20 21 22 23 24 NAME DVDD VRTS VRT R3 R2 AVDD VIN AGND R1 VRBS VRB DGND DESCRIPTION Digital Power Supply Top Internal Reference Top of Reference 3/4 Reference Tap Point 1/2 Reference Tap Point Analog Power Supply Analog Input Voltage Analog Ground 1/4 Reference Tap Point Bottom Internal Reference Bottom of Reference Digital Ground Rev. 1.00 2 XRD6406 ELECTRICAL CHARACTERISTICS TABLE Unless Otherwise Specified: AVDD = DVDD = 5V, FS = 6MHz (50% Duty Cycle), VRT = 4.0, VRB = 1.0, TA = 25°C Parameter KEY FEATURES Resolution Maximum Sampling Rate ACCURACY (A Grade)1 Differential Non-Linearity Integral Non-Linearity Zero Scale Error Gain Error REFERENCE VOLTAGES Positive Ref. Voltage2,3 Negative Ref. Voltage2,3 Differential Ref. Voltage2,3 Ladder Resistance Ladder Temp. Coefficient2 Top Internal Reference Bottom Internal Reference ANALOG INPUT Input Bandwidth (--1 dB)2,4 Input Voltage Range Input Capacitance (Sample)2,5 Input Capacitance (Convert)2,5 Aperture Delay2 Aperture Uncertainty 2 (Jitter) DIGITAL INPUTS Logical “1” Voltage Logical “0” Voltage DC Leakage Currents2,6 CLK OE Input Capacitance2 Clock Timing (See Figure 1) Clock Period2 Rise & Fall Time2,7 “High” Pulse Width2,3 “Low” Pulse Width2,3 Duty Cycle2,3 DIGITAL OUTPUTS Logical “1” Voltage Logical “0” Voltage 3-state Leakage Data Valid Delay Data Enable Delay Data 3-state Delay VOH VOL IOZ tDL tDEN tDHZ 4.5 10 40 25 25 0.4 45 30 30 V V mA ns ns ns VIH VIL IIN 4 5 5 5 167 2 84 84 50 1 V V mA mA pF ns ns ns ns % COUT=15 pF ILOAD = 4mA ISINK = 4mA VOUT=DGND to DVDD BW VIN CIN tAP tAJ VRB 25 25 7 25 50 VRT 40 12 30 MHz V pF pF ns ps VRT VRB VREF RL RTCO VRTS VRBS AGND 1.0 AVDD 1400 2000 4 1 AVDD V V V W ppm/°C V V DNL INL EZS EFS 10 6 +1 +2 LSB LSB LSB LSB Best Fit Line (Max INL -- Min INL)/2 FS 10 6 Bits MHz Symbol Min 25°C Typ Max Units Test Conditions/Comments VREF = VRT -- VRB VRT connected to VRTS & VRB connected to VRBS VIN=DGND to DVDD 1/FS tR, tF tPWH tPWL Rev. 1.00 3 .


XN09D61 XRD6406 LP3905


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