HDAS-524, HDAS-528 12-Bit, 400kHz, Complete Data Acquisition System FEATURES 12-Bit resolution, 400kHz throughput 8 Channels single-ended or 4 channels differential Miniature, 40-pin, ceramic DDIP Full scale input range from 100mV to 10V Three-state outputs No missing codes INPUT/OUTPUT CONNECTIONS 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 START CONVERT CA2 CA1 CA0 +5V SUPPLY DIGITAL GROUND ENABLE BIT 1 (MSB) BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 BIT 9 BIT 10 BIT 11 BIT 12 (LSB) EOC ..! ; CH0/CH0 HI CH1/CH1 HI CH2/CH2 HI CH3/CH3 HI CH7/CH3 LO CH6/CH2 LO CH5/CH1 LO CH4/CH0 LO COMP BIN RGAIN LO RGAIN HI S/H OUT +10V REFERENCE OUT SIGNAL GROUND GAIN ADJUST OFFSET ADJUST BIPOLAR –15V SUPPLY ANALOG GROUND +15V SUPPLY "% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 The acquisition time is the amount of time the multiplexer, instrumentation amplifier and sample-hold require to settle within a specified range of accuracy. The acquisition time can be measured by how long EOC is low before the rising edge of the START CONVERT pulse for continuous operation. Higher FUNCTION #$; HDAS-524/528 OPERATION The HDAS devices accept either 8 single-ended or 4 differential input signals. Tie unused channels to SIGNAL GROUND, pin 14. Channel selection is accomplished using the multiplexer address pins as shown in Table 1. Obtain additional channels by connecting external multiplexers. PIN %#$ The HDAS-524 provides 4 differential inputs, and the HDAS-528 provides 8 single-ended inputs. An internal instrumenta- tion amplifier is characterized for gains of 1, 2, 4, 8, 10 and 100. The gain range is selectable through a single external resistor. FUNCTION %#$ GENERAL DESCRIPTION The HDAS-524 and HDAS-528 are complete data acquisition systems. Each contains an internal multiplexer, instrumentation amplifier, sample-hold, analog-to-digital converter and three-state outputs. Packaged in miniature, 40-pin, double-dip packages, the HDAS-524/528 have a low power dissipation of 2.6 Watts. PIN Continued on page 3 ! " #$#%$ $#$ ##$ &'""* &'""* ,'""* %!.: % $'!% ! "$ !$! Typical topology is shown. Figure 1. Functional Block Diagram www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_HDAS-524/528.B01 Page 1 of 5 HDAS-524, HDAS-528 ABSOLUTE MAXIMUM RATINGS PERFORMANCE PARAMETERS MIN. TYP. MAX. UNITS +15V Supply, Pin 20 –15V Supply, Pin 18 +5V Supply, Pin 36 Digital Inputs, Pins 9, 34, 37-40 Analog Inputs, Pins 1–8 Lead Temperature (10 seconds) 0 0 –0.5 –0.3 –15 — — — — — — — +18 –18 +7 +VDD +0.3 +15 300 Volts Volts Volts Volts Volts °C FUNCTIONAL SPECIFICATIONS (Apply over the operating temperature range with ±15V and +5V supplies unless otherwise specified.) ANALOG INPUTS Number of Inputs HDAS-524 HDAS-528 Input Voltage Ranges Gain = 1 Gain = 100 I.A. Gain Ranges Input Impedance CH On, CH Off Input Capacitance (-524) CH On, CH Off (-528) CH On, CH Off Input Bias Current Input Offset Current Input Offset Voltage Common Mode Voltage Range CMRR, G = 1, @10Hz, Vcm = 1Vp-p Voltage Noise (RMS) Gain = 1 Gain = 8 MUX Crosstalk @125kHz MUX ON Resistance Bias Current Tempco Offset Current Tempco Offset Voltage Tempco Input Gain Equation MIN. TYP. MAX. UNITS 4 differential inputs 8 single-ended inputs 0 to +10V, ±10V 0 to +100mV, ±100mV 1, 2, 4, 8, 10, 100 1012 — Ohms — — — — — ±11 — — — — — — 12 25 ±200 ±50 ±10 — pF pF pA pA mV Volts 72 80 — dB — — 200 MV — — 50 MV –72 — — dB — 450 500 Ohms Doubles (max.) every 10°C above +70°C Doubles (max.) every 10°C above +70°C (±30ppm/°C x gain) ±20ppm/°C (max.) 2k7 GAIN = +1 RGAIN +2.0 — — — — +0.5 Volts Volts — — — — +5 –600 MA MA OUTPUTS Logic Levels Logic 1 Logic 0 Logic Loading Logic 1 Logic 0 Internal Reference Voltage, +25°C Drift External Current Output Coding — — — — — — — — — — — — — — — — — — — — — — — — ±0.13 ±0.15 ±0.25 ±0.074 ±15 ±0.074 ±5 ±0.1 ±20 ±0.1 ±20 ±0.75 ±0.75 ±1.5 ±0.75 ±0.75 ±1 ±0.3 ±0.5 ±0.78 ±0.15 ±30 ±0.15 ±10 ±0.25 ±40 ±0.25 ±40 LSB LSB LSB LSB LSB LSB %FSR %FSR %FSR %FSR ppm/°C %FSR ppm/°C %FSR ppm/°C % ppm/°C –73 –65 dB Over operating temperature range SIGNAL TIMING 1011 DIGITAL INPUTS Logic Levels Logic 1 Logic 0 Logic Loading Logic 1 Logic 0 Resolution Integral Nonlinearity, +25°C 0 to +70°C –55 to +125°C Differential Nonlinearity, +25°C 0 to +70°C –55 to +125°C F.S. Abs. Accuracy, +25°C 0 to +70°C –55 to +125°C Unipolar Zero Error, +25°C Unipolar Zero Tempco Bipolar Zero Error, +25°C Bipolar Zero Tempco Bipolar Offset Error, +25°C Bipolar Offset Tempco Gain Error, +25°C Gain Tempco Harmonic Distortion (–FS) (DC to 5kHz, 10Vp-p) ~ No Missing Codes 12-Bit, 400kHz, Complete TYP. MAX. UNITS Acquisition System 12 Data — — Bits MIN. Enable to Data Valid Delay MUX Address Set-up Time Start Convert Pulse Width Data Valid After EOC Signal Goes Low Conversion Time, +25°C 0 to +70°C –55 to +125°C Throughput Rates ~ Gain = 1 Gain = 2 Gain = 4 Gain = 8 Gain = 10 Gain = 100 — 400 50 — — 100 10 — — ns ns ns — — — — — — — — 20 800 850 880 ns ns ns ns 400 325 275 225 175 40 — — — — — — — — — — — — kHz kHz kHz kHz kHz kHz — — –50 — ±70 500 400 –20 — ±90 900 750 0 ±150 — ns ns ns ps V/μs — — 80 — 100 75 88 ±0.1 200 150 — ±100 ns ns dB μV/μs +14.25 –14.25 +4.75 — — — — — +15.0 –15.0 +5.0 +78 –72 +75 2.6 — +15.75 –15.75 +5.25 +90 –82 +95 3 ±0.05 Volts Volts Volts mA mA mA Watts %FSR/%V S/H PERFORMANCE Acquisition Time Full-Scale Step to ±0.01% Full-Scale Step to ±0.1% Aperture Delay Aperture Uncertainty Slew Rate Hold Mode Settling Time To ±1mV To ±10mV Feedthrough Rejection Droop Rate ~ POWER SUPPLIES +2.4 — — — — +0.4 Volts Volts — — — — –160 +6.4 MA mA +9.9 — — +10.0 +10.1 Volts ±5 ±35 ppm/°C — 1.5 mA Straight binary/Offset binary Comp. binary/Comp. offset binary Footnotes: ~ Specifications valid at +25°C and over the temperature ranges of 0 to +70°C or –55 to +125°C. www.murata-ps.com Range, +15V Supply –15V Supply +5V Supply Current, +15V Supply –15V Supply +5V Supply Power Dissipation Power Supply Rejection PHYSICAL/ENVIRONMENTAL Oper. Temp. Range, Case, -MC, -MM, 883 Storage Temp. Range Package Type Weight 0 –55 –65 — +70 — +125 — +150 40-pin ceramic DDIP 0.56 ounces (16 grams) °C °C °C Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_HDAS-524/528.B01 Page 2 of 5 HDAS-524, HDAS-528 gains require the use of the RGAIN resistor to increase the acquisition time. The gain is equal to 1 without an RGAIN resistor. Table 2 refers to the appropriate RGAIN resistors for various throughputs. The HDAS devices enter the hold mode and are ready for conversion upon the start convert going high. The conversion is complete within a maximum of 800ns (+25°C). EOC returns low, the data is valid and sent to the three-state output buffers. The sample/hold is now ready to acquire new data. Table 1. MUX Channel Addressing MUX ADDRESS PINS 39 38 37 CA2 CA1 CA0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 CHANNEL 0 1 0 1 0 1 0 1 0 1 2 3 4 5 6 7 HDAS-524 (2-BIT ADDRESS) HDAS-528 (3-BIT ADDRESS) Table 2. Input Range Parameters INPUT RANGE GAIN RGAIN THROUGHPUT 0 to +10V 0 to +5V 0 to +2.5V 0 to +1.25V 0 to +1V 0 to +100mV 1 2 4 8 10 100 OPEN 2k7 6657 2877 2217 207 400kHz 325kHz 275kHz 225kHz 175kHz 40kHz ±10V ±5V ±2.5V ±1.25V ±1V ±100mV 1 2 4 8 10 100 OPEN 2k7 6657 2877 2217 207 400kHz 325kHz 275kHz 225kHz 175kHz 40kHz RGAIN = 2k7 (GAIN –1) GAIN = 12-Bit, 400kHz, Complete Data Acquisition System CALIBRATION PROCEDURE 1. Connect the converter per Figure 2 and Tables 2 and 3 for the appropriate input range. Apply a pulse of 100 nano-seconds (typical) to the START CONVERT input (pin 40) at a rate of 100kHz. This rate is chosen to reduce flicker if LED’s are used on the outputs for calibration purposes. 2. Zero Adjustments Apply a precision voltage reference source between the analog input and SIGNAL GROUND (pin 14). Adjust the output of the reference source per Table 3. For unipolar, adjust the zero trimming potentiometer so that the output code flickers equally between 0000 0000 0000 and 0000 0000 0001 with the COMP BIN (pin 9) tied high (straight binary) or between 1111 1111 1111 and 1111 1111 1110 with the COMP BIN (pin 9) tied low (complementary binary). For bipolar operation, adjust the potentiometer such that the code flickers equally between 1000 0000 0000 and 1000 0000 0001 with COMP BIN (pin 9) tied high (offset binary) or between 0111 1111 1111 and 0111 1111 1110 with COMP BIN (pin 9) tied low (complementary offset binary). 3. Full-Scale Adjustment Set the output of the voltage reference used in step 2 to the value shown in Table 3. Adjust the gain trimming potentiometer so that the output code flickers equally between 1111 1111 1110 and 1111 1111 1111 or 0000 0000 0001 and 0000 0000 0000 for complementary coding. 4. To confirm proper operation of the device, vary the precision reference voltage source to obtain the output coding listed in Table 4. &' & :K. :K. #$ %#$ % #$ % #$ &'%!. & :K. :K. ,' @ #$; &' ,' 2k7 +1 RGAIN @ ..! ; &' ,' Table 3. Zero and Gain Adjust #$ INPUT RANGE ZERO ADJUST +1/2LSB GAIN ADJUST +FS – 1 1/2LSB 0 to +10V ±10V +1.22mV +2.44mV +9.9963V +9.9927V :K. :K. &' & & :K. :K. Figure 2. Typical Connection Diagram Notes: 1. For unipolar operation, connect pin 12 to pin 17. 2. For bipolar operation, connect pin 13 to pin 17. 3. Position RGAIN as close as possible to pins 10 and 11. Use RN55C, 1% resistors. 4. If gain and offset adjusts are not used, connect pin 15 to ground and leave pin 16 open. www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_HDAS-524/528.B01 Page 3 of 5 HDAS-524, HDAS-528 TECHNICAL NOTES 1. Rated performance requires using good high-frequency circuit board layout techniques. The analog and digital ground pins are not connected to each other internally. Avoid ground-related problems by connecting the analog, signal and digital grounds to one point, the ground plane beneath the converter. Due to the inductance and resistance of the power supply return paths, return the analog and digital grounds separately to the power supplies. This prevents contamination of the analog ground by noisy digital ground currents. 2. Double-level multiplexing allows expanding the multiplexer channel capacity of the HDAS-528 from 8 single-ended channels to 128 single-ended channels or the HDAS-524 from 4 differential channels to 32 differential channels. % $'!% ! $, QWXZQ: 12-Bit, 400kHz, Complete Data Acquisition System 3. Obtain straight binary/offset binary output coding by tying COMP BIN (pin 9) to +5V or leaving it open. The device has an internal pull-up resistor on this pin. To obtain complementary binary or complementary offset binary output coding, tie pin 9 to ground. The COMP BIN signal is compatible to CMOS/TTL logic levels for those users desiring logic control of this function. 4. To enable the three-state outputs, connect ENABLE (pin 34) to a logic "0" (low). To disable, connect pin 34 to a logic "1" (high). $ QW QWXZQ: QWX[: QW " $,'[\Z] $'[\Z] :KW $,'[\Z] !$! QW QW !Q[w\x]][^[ $'[\Z] ZW[w\x$, QW Notes: QW^_`Zh[\ 1. A START CONVERT pulse greater than 150ns will slow the throughput. 2. Retriggering START CONVERT before EOC goes low will not start a new conversion. 3. Times shown apply over the 0 to +70°C operating temperature range. QW^_`Zh[\ %!! %!! %!! Figure 3. HDAS-524/528 Timing Diagram Table 4. Output Coding STRAIGHT BINARY UNIPOLAR SCALE INPUT RANGE 0 to +10V MSB +FS – 1LSB +7/8FS +3/4FS +1/2FS +1/4FS +1/8FS +1LSB 0 +9.9976V +8.7500V +7.5000V +5.0000V +2.5000V +1.2500V +0.0024V 0.0000V 1111 1110 1100 1000 0100 0010 0000 0000 COMP. BINARY OUTPUT CODING LSB MSB 1111 0000 0000 0000 0000 0000 0000 0000 1111 0000 0000 0000 0000 0000 0001 0000 OFFSET BINARY www.murata-ps.com LSB 0000 0000 0000 0001 1111 1111 0011 1111 1111 0111 1111 1111 1011 1111 1111 1101 1111 1111 1111 1111 1110 1111 1111 1111 INPUT RANGE ±10V BIPOLAR SCALE +9.9951V +7.5000V +5.0000V 0.0000V –5.0000V –7.5000V –9.9951V –10.0000V +FS – 1LSB +3/4FS +1/2FS 0 –1/2FS –3/4FS –FS + 1LSB –FS COMP. OFF. BINARY Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_HDAS-524/528.B01 Page 4 of 5 HDAS-524, HDAS-528 12-Bit, 400kHz, Complete Data Acquisition System Mechnical Dimensions INCHES (mm) 40-PIN DDIP 2.12 MAX. (53.85) (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) 40 Kovar alloy 21 0.80 MAX. (20.32) 1 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 20 0.100 TYP. (2.540) 1.900 ±0.008 (48.260) 0.245 MAX. (6.223) PIN 1 INDEX ( ON TOP) 0.200 MAX. (5.080) 0.012 ±0.003 (0.305) 0.210 MAX. (5.334) 0.100 (2.540) 0.018 ±0.002 (0.457) 0.600 ±0.010 (15.240) SEATING PLANE 0.025 (0.635) 0.040 (10.160) 0.100 (2.540) Ordering Information Model No. Input Operating Temp. Range HDAS-524MC 4D Channels 0 to +70°C ISO 9001 R E G I S T E R E D HDAS-524MM 4D Channels –55 to +125°C HDAS-528MC 8SE Channels 0 to +70°C HDAS-528MM 8SE Channels –55 to +125°C HDAS-528/883 8SE Channels –55 to +125°C Receptacle for PC board mounting can be ordered through AMP Inc., Part #3-331272-8 (Component Lead Socket), 40 required. Contact Murata Power Solutions for MIL-STD-883 product specifications. USA: Tucson (AZ), Tel: (800) 547 2537, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com ISO 9001 REGISTERED email: [email protected] 3/12/08 Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDC_HDAS-524/528.B01 Page 5 of 5