HDAS8-16 MURATA | Alldatasheet
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MDC_HDAS-16/8.B01 Page 1 of 7 www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 HDAS-16, HDAS-8 12-Bit, 50kHz, Complete Data Acquisition Systems Figure 1. Functional Block Diagram
FEATURES
/square6 Miniature 62-pin cermanic package /square6 12-Bit resolution, 50kHz throughput /square6 Full-scale input range from 50mV to 10V /square6 Three-state outputs /square6 16 S.E. or 8 differential input channels /square6 Auto-sequencing channel addressing /square6 MIL-STD-883 versions /square6 No missing codes Typical topology is shown. GENERAL DESCRIPTION Using thin and thick-film hybrid technology, Murata Power Solutions offers complete low-cost data acquisition systems with superior performance and reliability. The HDAS-8 (with 8 differential input channels) and the HDAS-16 (with 16 single-ended input channels) are complete, high-performance, 12-bit data acquisition systems in 62-pin packages. Each HDAS may be expanded up to 32 single-ended or 16 differential channels by adding externalmultiplexers. Internal channel address sequencing is automatic after each conversion, or the user may supply external channel addresses. Internal HDAS circuitry includes: /square6 Analog input multiplexer (16 S.E. or 8 diff.) /square6 Resistor-programmable instrumentation amplifier /square6 Sample-and-hold circuit complete with MOS hold capacitor /square6 10 Volt buffered reference /square6 12-bit A/D converter with three-state outputs and control logic CH0 HI /CH0 CH1 HI /CH1 CH2 HI /CH2 CH3 HI /CH3 CH4 HI /CH4 CH5 HI /CH5 CH6 HI /CH6 CH7 HI /CH7 CH0 LO /CH8 CH1 LO /CH9 CH2 LO /CH10 CH3 LO /CH11 CH4 LO /CH12 CH5 LO /CH13 CH6 LO /CH14 CH7 LO /CH15 11 1012 15 17 16 39 38 3740 BIT 1 (MSB) BIT 2 BIT 3 BIT 4 EN (1-4) BIT 5 BIT 6 BIT 7 BIT 8 EN (5-8) BIT 9 BIT 10 BIT 11 BIT 12 (LSB) EN (9-12) EOC MUX ADDRESS OUT RDELAY ANA SIG COM CLEAR –15V SUPPLY MUX ENABLE (HOLD) I/A
16 CHANNEL
8 CHANNEL
(START) 6 8 19 1413 41 44 42 43 18 STROBE LOAD RA1 RA2 RA4 RA8 MUX ADDRESS IN ANA PWR COM +5V SUPPLY DIG COM 474850495 46 AMP IN HI AMP IN LO RGAIN HI RGAIN LO ANA SIG COM ANA SIG COM S/H OUT +10V REF OUT BIPOLAR INPUT GAIN ADJUST OFFSET ADJUST THREE STATE OUTPUT DATA (BUFFERED) +15V SUPPLY
MDC_HDAS-16/8.B01 Page 2 of 7 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com HDAS-16, HDAS-8 PERFORMANCE(cont.) MIN. TYP. MAX. UNITS Unipolar Zero Error Bipolar Zero Error Bipolar Offset Error Gain Error +25°C — — ±0.2 % DYNAMIC CHARACTERISTICS Acquisition Time, Gain = 1 +25°C — 9 10 μs –55 to +125°C — — 15 μs Aperture Delay Time —— 5 0 0 n s Aperture Uncertainty —— 1 n s S/H Droop Rate — — ±1 μV/μs Feedthrough — — ±0.01 % A/D Conversion Time +25°C — 6 8 μs –55 to +125°C — — 10 μs Throughput Rate +25°C 50 66 — kHz –55 to +125°C 33 — — kHz DIGITAL INPUTS Logic Levels Logic 1 +2.0 — +5.5 Volts Logic 0 0 — +0.8 Volts (Pin 5) Logic 1 +4.0 — +5.5 Volts Logic 0 0 — +0.8 Volts Logic Loading 26, 31) Logic 1 — — ±10 μA Logic 0 — — ±10 μA Multiplexer Address Set-up Time 2 0——n s ENABLE to Data Valid Delay —2 03 0n s STROBE 4 0——n s OUTPUTS Logic Levels (Output Data) Logic 1 +2.4 — — Volts Logic 1 (pin 7) +2.5 — — Volts Logic 0 — — +0.4 Volts (Pins 9, 10, 11, and 12) Logic 1 +2.5 — — Volts Logic 0 — — +0.4 Volts Logic Loading Logic 1 — — –400 μA Logic 0 — — +4 mA Internal Reference: Voltage, +25°C +9.99 +10.00 +10.01 Volts Drift — — ±20 ppm/°C External Current — — 1 mA Output Data Coding Straight binary (unipolar) or offset binary (bipolar) ABSOLUTE MAXIMUM RATINGS PARAMETERS MIN. TYP. MAX. UNITS +15V Supply (pin 43) –0.5 — +18 Volts –15V Supply (pin 44) +0.5 — –18 Volts +5V Supply (pin 18) –0.5 — +7 Volts Analog Inputs –35 — +35 Volts Digital Inputs –0.5 — +7 Volts Thermal Resistances: Junction-Case — — 15 °C/Watt Case-Ambient — — 15 °C/Watt Junction-Ambient — — 30 °C/Watt Lead Temp. (10 seconds) —— 3 0 0 ° C ANALOG INPUTS MIN. TYP. MAX. UNITS Signal Range, Unipolar Gain = 1 0 — +10 Volts Gain = 200 — — +50 mV Signal Range, Bipolar Gain = 1 –10 — +10 Volts Gain = 200 –50 — +50 mV Input Gain Equation Gain = 1 + (20kΩ/RGAIN) Gain Equation Error — — ±0.1 % Instrumentation Amplifier Input Impedance 10 8 1012 —O h m s Input Bias Current: +25°C — — ±250 pA –55 to +125°C Doubles every 10°C Input Offset Current: +25°C — — ±1 nA –55 to +125°C Doubles every 10°C Multiplexer Channel ON Resistance — — 2 k Ω Channel OFF Input Leakage — ±30 — pA Channel OFF Output Leakage — ±1 — nA Channel ON Leakage — ±100 — pA Input Capacitance HDAS-16, Channel ON — 100 — pF HDAS-8, Channel ON — 50 — pF +25°C, Channel OFF — 5 — pF Input Offset Voltage Gain = 1, +25°C — — ±2 mV –55 to +125°C (max.) (±3ppm/°C x Gain) ±20ppm/°C Gain = 200, +25°C — — ±100 mV –55 to +125°C (max.) (±3ppm/°C x Gain) ±20ppm/°C Common Mode Range ±10 — — Volts CMRR, Gain = 1, at 60Hz 70 82 — dB Input Voltage Noise, Gain = 1 (Referred to input) — 150 200 μVrms Channel Crosstalk —— – 8 0 d B PERFORMANCE Resolution 12 — — Bits Integral Nonlinearity 0 to +70°C — — ±1 LSB –55 to +125°C — — ±1 LSB Differential Nonlinearity 0 to +70°C — — ±1 LSB –55 to +125°C — — ±1 LSB No Missing Codes Over the operating temperature range FUNCTIONAL SPECIFICATIONS (The following specifications apply over the operating temperature range and power supply range unless otherwise indicated.)
MDC_HDAS-16/8.B01 Page 3 of 7 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com HDAS-16, HDAS-8 POWER REQUIREMENTS MIN. TYP. MAX. UNITS Power Supply Ranges +15V Supply +14.5 +15.0 +15.5 Volts –15V Supply –14.5 –15.0 –15.5 Volts +5V Suppy +4.75 +5.0 +5.25 Volts Power Supply Currents +15V Supply — — +33 mA –15V Supply — — –30 mA +5V Suppy — — +15 mA Power Dissipation — — 1.25 Watts PHYSICAL/ENVIRONMENTAL Operating Temp. Range, Case MC Models 0 — +70 °C MM/883 Models –55 — +125 °C Storage Temperature Range –65 — +150 °C Weight 1.4 ounces (39.7 grams) Package Type 62-pin cermanic DIP Footnotes: Analog inputs will withstand ±35V with power on. If the power is off, the maximum safe input (no damage) is ±20V. The gain equation error is guaranteed before external trimming and applies at gains less than 50. This error increases at gains over 50. Adjustable to zero. STROBE pulse width must be less than EOC period to achieve maximum throughput rate. FUNCTIONAL SPECIFICATIONS (Continued) PIN NO. HDAS-16 HDAS-8
1 CH3 IN CH3 HIGH IN
2 CH2 IN CH2 HIGH IN
3 CH1 IN CH1 HIGH IN
4 CH0 IN CH0 HIGH IN
5 MUX ENABLE *
6 RDELAY *
7 EOC *
8 STROBE *
9 A8 MULTIPLEXER *
10 A4 ADDRESS *
11 A2 OUT *
12 A1 *
13 RA8 MULTIPLEXER *
14 RA4 ADDRESS *
15 RA2 IN *
16 RA1 *
17 DIGITAL CO MMON *
18 +5V SUPPLY *
19 LOAD *
20 CLEAR *
21 ENABLE ( Bits 9–12) *
22 BIT 12 (LSB) *
23 BIT 11 *
24 BIT 10 *
25 BIT 9 *
26 ENABLE ( Bits 5–8) *
27 BIT 8 *
28 BIT 7 *
29 BIT 6 *
30 BIT 5 *
31 ENABLE ( Bits 1–4) *
32 BIT 4 *
33 BIT 3 *
34 BIT 2 *
35 BIT 1 (MSB) *
36 GAIN ADJUST *
37 OFFSET ADJUST *
38 BIPOLAR INPUT *
39 SAMPLE/HOLD OUT *
40 +10V REFERENCE OUT *
41 ANALOG SIGNAL COMMON *
42 ANALOG POWER COMMON *
44 –15V SUPPLY *
45 ANALOG SIGNAL COMMON *
46 ANALOG SIGNAL COMMON *
47 RGAIN LOW *
48 RGAIN HIGH *
49 AMP. IN HIGH * 50 AMP. IN LOW *
51 CH15 IN CH7 LOW IN
52 CH14 IN CH6 LOW IN
53 CH13 IN CH5 LOW IN
54 CH12 IN CH4 LOW IN
55 CH11 IN CH3 LOW IN
56 CH10 IN CH2 LOW IN
57 CH9 IN CH1 LOW IN
58 CH8 IN CH0 LOW IN
59 CH7 IN CH7 HIGH IN
60 CH6 IN CH6 HIGH IN
61 CH5 IN CH5 HIGH IN
62 CH4 IN CH4 HIGH IN
*Same as HDAS-16 Caution: Pins 49 and 50 do not have overvoltage protection; therefore, protected multiplexers, such as MPS’s MX-1606 and MX-808 are recommended. See the General Operation description. TECHNICAL NOTES 1. Input channels are protected to 20 Volts beyond the powersupplies. All digital output pins have one second short-circuit protection. 2. To retain high system throughput rates while digitizing low-level signals, apply external high-gain amplifiers foreach channel. MPS’s AM-551 is suggested for such amplifier-per-channel applications. 3. The HDAS devices have self-starting circuits for free-running sequential operation. If, however, in a power-upcondition the supply voltage slew rate is less than 3V per microsecond, the free running state might not be initial- ized. Apply a negative pulse to the STROBE, to eliminate this condition. 4. For unipolar operation, connect BIPOLAR INPUT (pin 38) to S/H OUT (pin 39). For bipolar operation, connect BIPOLAR INPUT (pin 38) to +10V REFERENCE OUT (pin 40). 5. RDELAY may be a standard value 5% carbon composition or film-type resistor. 6. RGAIN must be very accurate with low temperature coefficients. If neces- sary, fabricate the gain resistor from a precision metal-film type in series with a low value trim resistor or potentiometer. The total resistor tempera- ture coefficient must be no greater than ±10ppm/°C. 7. ANALOG SIGNAL COMMON, POWER COMMON and DIGITAL COMMON are connected internally. For optimal performance, tie all ground pins (17, 41, 42, 45, 46) directly to a large analog ground plane beneath the package. 8. For HDAS-16, tie pin 50 to a “signal source common” if possible. Otherwise tie pin 50 to pin 41 (ANA SIG COM).
Figure 2. External Adjustment The HDAS devices accept either 16 single-ended or 8 differential input signals. each channel. Tie unused channels to the ANALOG SIGNAL COMMON (pin 41).
1 Sequential address mode
1 Enables internal multiplexer
1 Conversion in process
1 Disables three-state outputs bits 1-4
1 Disables three-state outputs bits 5-8
1 Disables three-state outputs bits 9-12
GAIN ADJUSTMENT External gain adjustment. See calibration instructions. OFFSET ADJUSTMENT External offset adjustment. See calibration instructions. adjusted for G = 1 when left open. Table 1. Description of Pin Functions Table 2. Calibration Table
- Offset and gain adjustments are made by connecting two 20k trim potenti-
ometers as shown in Figure 2.
- Connect a precision voltage source to pin 4 (CH0 IN). If the HDAS-8 is used,
- Adjust the precision voltage source to the value shown in Table 2 for the
- Change the output of the precision voltage source to the value shown in
Table 4. Output Coding Table 5. Mux Channel Addressing
0 X X X X NONE
Table 3. Input Range Parameters (Typical)
- For 2’s complement coding, add an inverter to the MSB line.
and ±10V for bipolar signals. Full scale can be accommodated for analog signal ranges of ±50mV to ±10V. period (10 microseconds maximum). tors required for various gains. process for the next conversion. to reset the addressing to channel 0.
MDC_HDAS-16/8.B01 Page 7 of 7 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com HDAS-16, HDAS-8 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 email: sales@murata-ps.com ISO 9001 REGISTERED 3/12/08 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 her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject t o change without notice. © 2008 Murata Power Solutions, Inc. USA: Tucson (AZ), Tel: (800) 547 2537, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Mechnical Dimensions INCHES (mm)
Ordering Information
Model No. Operating Temp. Range HDAS-16MC 0 to +70°C HDAS-16MM –55 to +125°C HDAS-16/883 –55 to +125°C HDAS-8MC 0 to +70°C HDAS-8MM –55 to +125°C HDAS-8/883 –55 to +125°C Receptacle for PC board mounting can be ordered through AMP Inc., Part #3-331272-4 (Component Lead Spring Socket), 62 required. Contact Murata Power Solutions for MIL-STD-883 product specifications. ISO 9001ISO 9001 REGISTERED Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 2.325 (59.055) 0.150 (3.810) 1.100 (27.940) 1.415 MAX. (35.94) 0.150 (3.810) 0.200 MAX. (5.080) 0.100 TYP. (2.540) 2.00 ±0.008 (50.800) 0.235 MAX. (5.969) 0.190 MAX. (0.508) 0.040 (1.016) 0.150 (3.810) SEATING PLANE 0.025 ±0.010 (0.635) 1.100 ±0.008 (27.940) 0.150 (3.810) 1 21 3252