MX-850MM [DATEL]
Multiplexers;
| 型号： | MX-850MM |
| 厂家： | 
DATEL, Inc. |
| 描述： | Multiplexers CD |
| 文件： | 总4页 (文件大小：142K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MX-850
Precision, High-Speed 4-Channel Analog Multiplexers
FEATURES
50ns settling time to 0ꢀ01ꢁ
70ns settling time to 0ꢀ003ꢁ
100ns settling time to 0ꢀ001ꢁ
4 Channels, single-ended inputs
100mW power dissipation
PRODUCT OVERVIEW
The MX-850 is a precision, high-speed
multiplexer characterized for 10, 12, 14 and 16-
bit applicationsꢀ The performance benchmarks
are its 50 nanosecond maximum settling time
to 0ꢀ01ꢁ accuracy and its unprecedented
0ꢀ001ꢁ accuracy specificationꢀ
Packaged in a miniature, 14-pin, ceramic DIP, the
MX-850 operates from 15ꢂ and ꢃ5ꢂ supplies
and consumes a maximum 270mWꢀ Models are
available for either 0 to ꢃ70°C or –55 to ꢃ125°C
operationꢀ
Small, 14-pin DIP package
Table 1. Channel Addressing
INPUT/OUTPUT CONNECTIONS
ON
MUX ADDRESS
A1
CHANNEL
PIN
FUNCTION
ENABLE
A0
PIN
8
FUNCTION
OUTPUT
EN
A0
1
2
9
GROUND
Disable
1
0
0
0
0
X
0
0
1
1
X
0
1
0
1
3
10
11
12
13
14
A1
ꢃ15ꢂ SUPPLY
GROUND
1
2
3
4
4
CH1 INPUT
CH2 INPUT
CH3 INPUT
CH4 INPUT
5
ꢃ5ꢂ SUPPLY
GROUND
6
7
–15ꢂ SUPPLY
FUNCTIONAL BLOCK DIAGRAM
+15V SUPPLY
10
CH1
CH2
4
5
6
7
1
OUTPUT
8
CH3
12 +5V SUPPLY
9, 11, 13 GROUND
CH4
SWITCH
DRIVER
15V SUPPLY
14
ENABLE
2
3
A
0
A
1
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
MDA_MX850.B01 Page 21 of 6
MX-850
Precision, High-Speed 4-Channel Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
Parameters
+15V Supply, Pin 10
–15V Supply, Pin 14
+5V Supply, Pin 12
Digital Inputs, Pins 1, 2, 3
Analog Inputs, Pins 4, 5, 6, 7
Analog Input Current
SWITCHING CHAR. (cont.)
MIN.
TYP.
MAX.
UNITS
Limits
–0ꢀ5 to ꢃ16ꢀ5
ꢃ0ꢀ5 to –16ꢀ5
–0ꢀ5 to ꢃ7
–0ꢀ5 to ꢃ6
–10ꢀ5 to ꢃ10ꢀ5
20
Units
ꢂolts
ꢂolts
ꢂolts
ꢂolts
ꢂolts
mA
Settling Time, 5k Load
10ꢂ step to 0ꢀ1ꢁ
10ꢂ step to 0ꢀ01ꢁ
10ꢂ step to 0ꢀ003ꢁ
10ꢂ step to 0ꢀ001ꢁ
—
—
—
—
25
40
60
80
30
50
70
ns
ns
ns
ns
100
Settling Time, 10M Load
300
10/50
°C
MHz/ꢁ
—
—
—
—
30
50
75
35
60
85
ns
ns
ns
ns
20ꢂ step to 0ꢀ1ꢁ
20ꢂ step to 0ꢀ01ꢁ
20ꢂ step to 0ꢀ003ꢁ
20ꢂ step to 0ꢀ001ꢁ
Lead temperature (10 seconds)
Switching Frequency/Duty Cycle
100
120
FUNCTIONAL SPECIFICATIONS
Settling Time, 5k Load
20ꢂ step to 0ꢀ1ꢁ
20ꢂ step to 0ꢀ01ꢁ
20ꢂ step to 0ꢀ003ꢁ
20ꢂ step to 0ꢀ001ꢁ
(Apply over the operating temperature range and over the operating power supply
range unless otherwise specifiedꢀ)
—
—
—
—
30
50
75
35
60
85
ns
ns
ns
ns
ANALOG INPUTS
MIN.
10
TYP.
—
MAX.
—
UNITS
ꢂolts
100
120
Analog Signal Range
Crosstalk ➀
—
18
90
Ohms
On Resistance, +25°C
0 to ꢃ70°C
–55 to ꢃ125°C
10kHz (20ꢂp-p)
1MHz (20ꢂp-p)
10MHz (5ꢂp-p)
20MHz (3ꢂp-p)
—
—
—
—
–105
–94
–76
–64
–100
–92
–71
–62
dB
dB
dB
dB
—
—
—
—
120
140
Ohms
Ohms
See Figure 2ꢀ
RON versus VIN
Input Leakage Current (Off)
ꢃ25°C
0 to ꢃ70°C
POWER REQUIREMENTS
—
—
—
8
—
—
50
0ꢀ1
0ꢀ4
nA
μA
μA
Power Supply Range
ꢃ15ꢂ Supply
–15ꢂ Supply
ꢃ14ꢀ5
–14ꢀ5
ꢃ4ꢀ75
ꢃ15
–15
ꢃ5
ꢃ15ꢀ5
–15ꢀ5
ꢃ5ꢀ25
ꢂolts
ꢂolts
ꢂolts
–55 to ꢃ125°C
Output Leakage Current (Off)
ꢃ25°C
0 to ꢃ70°C
ꢃ5ꢂ Supply
—
—
—
0ꢀ02
—
—
0ꢀ2
20
40
nA
nA
nA
Power Supply Current, Quiescent
ꢃ15ꢂ Supply
–15ꢂ Supply
—
—
—
ꢃ3
–10
ꢃ3
ꢃ4
–12
ꢃ3ꢀ5
—
mA
mA
mA
dB
–55 to ꢃ125°C
On Channel Leakage Current
ꢃ25°C
0 to ꢃ70°C
ꢃ5ꢂ Supply
—
—
—
10
—
—
50
0ꢀ1
0ꢀ4
nA
μA
μA
–80
–90
Power Supply Rejection Ratio
Power Supply Dissipation, Quiescent
ꢃ25°C
0 to ꢃ70°C
–55 to ꢃ125°C
–55 to ꢃ125°C
—
—
—
207
—
—
270
270
280
mW
mW
mW
Channel Input Capacitance
Off
On
—
—
4
10
6
12
pF
pF
See Figure 4ꢀ
Pd versus Frequency
Channel Output Capacitance
PHYSICAL/ENVIRONMENTAL
On
—
—
80
8
10
pF
Operating Temp. Range, Case
MX-850MC
MX-850MM
—
0ꢀ001
—
ꢁFSR
MHz
Nonlinearity
0
–55
–65
—
—
—
ꢃ70
ꢃ125
ꢃ150
°C
°C
°C
100
Large signal bandwidth (–3dB)
DIGITAL INPUTS
Storage Temperature Range
Package Type
14-pin, metal-sealed, ceramic DIP
0ꢀ1 ounces (2ꢀ8 grams)
Logic levels
Logic "1"
Logic "0"
Weight
ꢃ2ꢀ0
—
—
—
—
ꢃ0ꢀ8
ꢂolts
ꢂolts
➀ See Figures 3a and 3bꢀ
—
—
—
—
ꢃ10
–10
μA
μA
Logic Loading "1"
TECHNICAL NOTES
Logic Loading "0"
1ꢀ Proper operation of the MX-850 multiplexer is dependent upon good board layout
and connection practicesꢀ Bypass supplies as shown in the connection diagramsꢀ
Mount bypass capacitors directly to the supply pins whenever possibleꢀ
SWITCHING CHARACTERISTICS
Access Time
—
—
—
—
—
3
20
10
10
ns
ns
ns
Break-Before-Make Delay Time
Enable Delay (On, Off)
2ꢀ All grounds pins (9, 11, 13) should be tied together and connected to ground as
close to the multiplexer as possibleꢀ
Settling Time, 10M Load
10ꢂ step to 0ꢀ1ꢁ
10ꢂ step to 0ꢀ01ꢁ
10ꢂ step to 0ꢀ003ꢁ
10ꢂ step to 0ꢀ001ꢁ
3ꢀ When power is off, current limit input signals on pins 4, 5, 6, and 7 to 20mAꢀ
Failure to current limit can cause permanent damage to the device since, when
powering up or down it is possible that two switches might be on at the same
timeꢀ Excessive current (greater than 20mA) will flow from the more positive
input to the more negative input, permanently damaging the deviceꢀ Applications
in which the power supply for the multiplexer also powers the signal sources
may not require limiting resistorsꢀ See Figure 4ꢀ
—
—
—
—
25
40
60
80
30
50
70
ns
ns
ns
ns
100
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
MDA_MX850.B01 Page 22 of 6
MX-850
Precision, High-Speed 4-Channel Analog Multiplexers
+125°C
+25°C
1.5
120
110
100
90
1.2
1.0
80
70
0.75 W
60
0.7
55°C
50
0.5
0.2
40
30
20
10
1
2
3
4
5
6
7
8
9
10
10 8
6
4 2
0
2
4
6
8
10
FREQUENCY (MHz)
INPUT VOLTAGE (Volts)
Figure 2. Channel On Resistance Versus Input Voltage
Figure
Figure 4. Power Dissipation Versus Switching Frequency
CURRENT LIMITING RESISTORS
120
As noted in Technical Note 3, some current limiting technique must be
employed to protect the deviceꢀ The following lists the suggested resistor
values for the current limiting resistors shown in Figure 5ꢀ
100
80
60
40
20
Input Range
10ꢂ
Limiting Resistors
R = 500Ω
5ꢂ
R = 250Ω
≤ 1ꢂ
No current limiting needed
Other current limiting circuits can be used, such as a current limited op
amp drive, depending upon the applicationꢀ
0
100kHz
1MHz
10MHz
100MHz
1µF
+
INPUT FREQUENCY
0.01µF
12
1
2
3
14
+5V
15V
+15V
15V
0.01µF
EN
A0
A1
LOGIC
1µF
1µF
CONTROL
+
+
10
MX-850
R
R
+15V
0.01µF
4
5
6
7
CH2
CH3
CH4
CH1
CH2
ANALOG
INPUTS
(±10V @
±20mA
Max.)
MX-850
R
R
CH3
CH4
10pF
10M
8
OUTPUT
GROUND
11 13
9
(Load of a X10 probe)
Figure 3b. Crosstalk Test Circuit
Figure 5. Typical Connections
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
•
Tel: (508) 339-3000
•
www.datel.com
•
e-mail: help@datel.com
MDA_MX850.B01 Page 23 of 6
MX-850
Precision, High-Speed 4-Channel Analog Multiplexers
INPUT CHANNELS 1-8
Table 2. 8 Channel Addressing
1
2
3
4
5
6
7
8
MUX ADDRESS
ON
CHANNEL
1
0
0
0
0
1
1
1
1
0
2
0
0
1
1
0
0
1
1
1
3
0
1
0
1
0
1
0
1
1
IN1
IN2
IN3
IN4
IN1
IN2
IN3
IN4
1
2
3
4
5
6
7
8
4
MX-850
MX-850
OUT
OUT
OUTPUT
A0
A0
EN
A1
EN
A1
CHANNEL EXPANSION
(1)
(2)
(3)
CHANNEL ADDRESS
The MX-850’s ENABLE input provides a means of channel expansionꢀ As
shown in Figure 6 and in Table 2, multiple multiplexers may be used by
using the ENABLE input as an address lineꢀ
Figure 6. Cascading Multiple MX-850’s
MECHANICAL DIMENSIONS INCHES (mm)
0.805 MAX.
(20.45)
14-PIN DIP
Dimension Tolerances (unless otherwise indicated):
2 place decimal (.XX) 0.010 ( 0.254)
14
1
8
7
3 place decimal (.XXX) 0.005 ( 0.127)
0.500 MAX.
(12.70)
Lead Material: Kovar alloy
Lead Finish: 50 microinches (minimum) gold plating
over 100 microinches (nominal) nickel plating
0.100 TYP.
(2.540)
0.600 0.005
(15.240)
0.195 MAX.
(4.953)
0.200 MAX.
(5.080)
0.010 0.002
(0.254)
0.160 MAX.
(4.064)
SEATING
PLANE
0.100
0.100
(2.540)
0.025 0.010
(0.635)
(2.540)
0.300 0.010
(7.620)
0.018 0.002
(0.457)
ORDERING INFORMATION
Model Number
MX-850MC
Operating Temp. Range RoHS
0 to ꢃ70°C
Model Number
MX-850MC-C
MX-850MM-C
MX-850MM-QL-C
Operating Temp. Range RoHS
No
No
No
0 to ꢃ70°C
Yes
-55 to ꢃ125°C
-55 to ꢃ125°C
-55 to ꢃ125°C
-55 to ꢃ125°C
Yes
Yes
MX-850MM
MX-850MM-QL
DATEL is a registered trademark of DATEL, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 USA
DATEL, Incꢀ 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 rightsꢀ The descriptions contained herein do not imply the granting of
licenses to make, use, or sell equipment constructed in accordance therewithꢀ Specifications are subject to change without noticeꢀ
ITAR and ISO 9001/14001 REGISTERED
© 2015 DATEL, Inc.
www.datel.com • e-mail: help@datel.com
MDA_MX850.B01 Page 24 of 6
相关型号：
©2020 ICPDF网 联系我们和版权申明