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MX-826
Precision, High-Speed 8-Channel, Analog Multiplexers
FEATURES
* * * * * * 170ns maximum settling time to 0.1% 225ns maximum settling time to 0.01% 400ns maximum settling time to 0.003% 8 Channels single-ended inputs 395mW power dissipation Small, 24-pin DDIP package
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INNOVATION and EXCELLENCE
GENERAL DESCRIPTION
The MX-826 is a precision, high-speed multiplexer characterized for 10, 12 and 14-bit applications. The performance benchmarks are its 225 nanoseconds maximum settling time to 0.01% accuracy and its unprecedented specification of accuracy to 0.003%. The MX-826 provides eight single-ended inputs. Channel addressing is done by a three-bit binary code and breakbefore-make switching assures that no two channels are ever momentarily shorted together. The MX-826 operates from 15V and +5V power supplies. Models are available in two operating temperature ranges: 0 to +70C and -55 to +125C. MIL-STD-883 screening is optional.
INPUT/OUTPUT CONNECTIONS
PIN 1 2 3 4 5 6 7 8 9 10 11 12 FUNCTION A0 A1 A2 IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 GROUND PIN 24 23 22 21 20 19 18 17 16 15 14 13 FUNCTION +5V SUPPLY GROUND N.C. N.C. N.C. -15V SUPPLY GROUND GROUND +15V SUPPLY N.C. N.C. OUTPUT
15V SUPPLY 19
+5V SUPPLY 24
+15V SUPPLY 16
4 5 6 ANALOG INPUTS 7 8 9 10 11 MUX 1 13 OUTPUT
123 CHANNEL ADDRESS
12, 17, 18, 23
Figure 1. Functional Block Diagram
DATEL, Inc., Mansfield, MA 02048 (USA) * Tel: (508) 339-3000, (800) 233-2765 Fax: (508) 339-6356 * Email: sales@datel.com * Internet: www.datel.com
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MX-826
ABSOLUTE MAXIMUM RATINGS
PARAMETERS +15V Supply, Pin 16 -15V Supply, Pin 19 +5V Supply, Pin 24 Digital Inputs, Pins 1, 2, 3 Analog Inputs, Pins 4-11 Lead Temperature (10s) Short Circuit to Ground , Pin 13 LIMITS 0 to +18V 0 to -18V -0.5 to +7V -0.3 to +5.5V -15 to +15V 300C Continuous POWER REQUIREMENTS Range +15V Supply -15V Supply +5V Supply Current (Quiescent) +15V Supply -15V Supply +5V Supply Power Supply Rejection Ratio Power Dissipation MIN +14.5 -14.5 +4.75 -- -- -- 86 -- TYP +15 -15 +5 +13 -13 <1 -- 395 MAX +15.5 -15.5 +5.25 +21 -21 +1 -- 575 UNITS Volts Volts Volts mA mA mA dB mW
FUNCTIONAL SPECIFICATIONS
(Apply over the operating temperature range and over the operating power supply range unless otherwise specified.) INPUTS Input Voltage Range Digital Input, Logic Levels Logic 1 Logic 0 Logic Loading Logic 1 Logic 0 OUTPUTS Output Range Output Current Stable Capacitive Load Output Impedance DC PERFORMANCE Gain Gain Error, 25C Gain Tempco -55 to +125C Offset, 25C Offset Voltage Drift Slew Rate Cross Talk 100kHz 1MHz Bandwidth 3dB Small Signal Full Power Input Impedance Output Settling Time (10V step, +25C) 500 Load 0.1% 10 Bits 0.01% 12 Bits 0.003% 14 Bits (20V step, + 25C) 1k Load 0.1% 10 Bits 0.01% 12 Bits 0.003% 14 Bits Switching Characteristics Break-Before-Make Delay Turn On Time Turn Off Time Harmonic Distortion DC to 500kHz, 10Vp-p Signal-to-Noise Ratio With Distortion Without Distortion -- -- -- -- -- 250 -- -- 8 3 2.45 -- -- -- -- -- -- 8 -- -- -- -- -- -1 -- 0.5 0.1 <5 300 -90 -80 8.5 4.5 2.5 100 150 300 150 200 600 15 20 20 -90 72 80 -- 0.03 5 0.5 15 -- -83 -75 -- -- 2.55 170 225 400 200 300 720 25 50 50 -80 69 75 V/V %FS ppm/C mV V/C V/s dB dB MHz MHz k 10.0 15 100 -- 10.5 -- -- 0.1 -- -- -- -- Volts mA pF Ohms MIN. 10 +2.0 -- -- -- TYP. 10.5 -- -- -- -- MAX. -- -- +0.8 +10 -10 UNITS Volts Volts Volts A A
PHYSICAL/ENVIRONMMENTAL Operating Temp. Range, Case MC Model MM Model Storage Temp. Range Package Type Weight 0 -55 -65 -- -- -- +70 +125 +150 C C C
24-pin, metal-sealed, ceramic DDIP 0.42 oz. (12 grams)
TECHNICAL NOTES
1. Bypass the 15V and +5V power supplies with a 1F, 25V tantalum electrolytic capacitors in parallel with a 0.1F ceramic capacitors. 2. Analog signals up to 15V may be present while the MUX power supplies are off. 3. The absence of an RON specification or output leakage specification is related to the architecture of the switching network. The inputs see a constant 2.5k Ohm input impedance whether the channel is on or off. 4. Typical recovery time from an overvoltage condition of >3V is approximately 200 nanoseconds from a negative overdrive and 700 nanoseconds from a positive overdrive. 5. Double-level multiplexing may be used to provide up to 64 channels (nine MX-826's required).
Table 1. Channel Addressing ns ns ns ns ns ns ns ns ns dB dB dB On Channel 1 2 3 4 5 6 7 8 MUX Address A2 A1 A0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1
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MECHANICAL DIMENSIONS INCHES (mm)
1.31 MAX. (33.27)
24-PIN DDIP
Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) 0.010 (0.254) 3 place decimal (.XXX) 0.005 (0.127) 0.80 MAX. (20.32) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating
24
13
1
12
0.100 TYP. (2.540) 1.100 (27.940) 0.235 MAX. (5.969) 0.200 MAX. (5.080)
0.010 -0.001 (0.254) 0.190 MAX. (4.826) 0.018 0.002 (0.457) 0.100 (2.540) 0.040 (1.016)
+0.002
SEATING PLANE 0.025 (0.635)
0.600 0.010 (15.240)
0.100 (2.540)
ORDERING INFORMATION
MODEL NO. MX-826MC MX-826MM MX-826/883 CHANNELS 8SE 8SE 8SE OPER. TEMP. RANGE 0 to +70C -55 to +125C -55 to +125C
DESC drawing available: Drawing Number 5962-9450601. For MIL-STD-883 product specifications, contact DATEL.
DATEL, Inc., Mansfield, MA 02048 (USA) * Tel: (508) 339-3000, (800) 233-2765 Fax: (508) 339-6356 * Email: sales@datel.com * Internet: www.datel.com
DATEL 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. The DATEL logo is a registered DATEL, Inc. trademark.

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