The UTC 4051 is an 8-channel analog multiplexer/demultiplexer chip that allows for digitally controlled switching of analog signals. It has three binary control inputs, an inhibit input, and features low on impedance and very low off leakage current. The chip supports analog signal switching across a wide voltage range of 3V to 18V.
2. 4051 CMOS IC
PIN CONFIGURATION
X4 1 16 VDD
X6 2 15 X2
X 3 14 X1
X7 4 13 X0
UTC 4051
X5 5 12 X3
INH 6 11 A
VEE 7 10 B
VSS 8 9 C
PIN DESCRIPTION
PIN No. SYMBAL NAME AND FUNCTION
3 X Common Input/Output
6 INH Inhibit Inputs
7 VEE Supply Voltage
8 VSS Ground
11,10,9 A,B,C Binary Control Inputs
13,14,15,12,1,5,2,4 X0~X7 Independent Inputs/Outputs
16 VDD Positive Supply Voltage
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3. 4051 CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER SYMBOL RATINGS UNIT
DC Supply Voltage (Referenced to VEE, VSS≧VEE) VDD -0.5 ~ +18 V
Input or Output Voltage (DC or Transient)
VIN, VOUT -0.5 ~ VDD +0.5 V
(Referenced to VSS for Control Inputs and VEE for Switch I/O)
Input Current (DC or Transient), per Control Pin IIN ±10 mA
Switch Through Current ISW ±25 mA
Power Dissipation 500 mW
PD
Derating above 65℃ 7 mW/℃
Junction Temperature TJ 125 ℃
Operating Temperature Range TOPR -40 ~ +125 ℃
Storage Temperature Range TSTG -40 ~ +150 ℃
Note: 1.Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2.The device is guaranteed to meet performance specification within 0℃~70℃ operating temperature range
and assured by design from –40℃~125℃.
ELECTRICAL CHARACTERISTICS (Ta=25℃, unless otherwise specified.)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY REQUIREMENTS (Voltages Referenced to VEE)
Power Supply Voltage Range VDD VDD – 3.0≧VSS≧VEE 3 18 V
VDD=5V Control Inputs: VIN = VSS or VDD 0.005 5
Quiescent Current per
VDD=10V IQ Switch I/O: VEE ≦VI/O ≦VDD, 0.010 10 µA
Package
VDD=15V and ∆Vsw≦500mV(Note 2) 0.015 20
Total Supply Current VDD=5V Ta=25℃ only (The channel (0.07 µA/kHz) f + IQ
(Dynamic Plus Quiescent, VDD=10V ID(AV) component, (VIN-Vout)/Ron, is (0.20 µA/kHz) f + IQ µA
Per Package) VDD=15V not included.) (0.36 µA/kHz) f + IQ
SWITCHES IN/OUT AND COMMONS OUT/IN -- X, Y, Z (Voltages Referenced to VEE)
Recommended Peak–to–Peak
VI/O Channel On or Off 0 VDD VPP
Voltage Into or Out of the Switch
Recommended Static or Dynamic
∆Vsw Channel On 0 600 mV
Voltage Across the Switch
Output Offset Voltage VO(OFF) VIN = 0V, No Load 10 µV
VDD=5V ∆Vsw≦500mV 250 1050
ON Resistance VDD=10V RON VIN = VIL or VIH (Control), and 120 500 Ω
VDD=15V VIN = 0 to VDD (Switch) 80 280
ΔON Resistance Between VDD=5V 25 70
Any Two Channels in the VDD=10V ∆RON 10 50 Ω
Same Package VDD=15V 10 45
VIN = VIL or VIH (Control)
Off–Channel Leakage Current IOFF Channel to Channel or Any ±0.05 ±100 nA
One Channel, VDD=15V
Capacitance, Switch I/O CI/O Inhibit = VDD 10 pF
Capacitance, Common O/I CO/I Inhibit = VDD 17 pF
Capacitance, Feedthrough Pins Not Adjacent 0.15
CI/O pF
(Channel Off) Pins Adjacent 0.47
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4. 4051 CMOS IC
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
CONTROL INPUTS – INHIBIT A, B, C (Voltages Referenced to VSS)
VDD=5V 2.25 1.5
Low Level Input Voltage VDD=10V VIL RON= per spec, IOFF = per spec 4.50 3.0 V
VDD=15V 6.75 4.0
VDD=5V 3.5 2.75
High Level Input Voltage VDD=10V VIH RON= per spec, IOFF = per spec 7 5.5 V
VDD=15V 11 8.25
Input Leakage Current ILEAK VIN= 0 or VDD, VDD=15V ±0.00001 ±0.1 µA
Input Capacitance CIN 5.0 7.5 pF
DYNAMIC ELECTRICAL CHARACTERISTICS
(CL = 50pF, Ta=25℃, VEE≦VSS, unless otherwise specified)
VDD–VEE
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Vdc
Propagation Delay Times 5 tPLH, tPHL =(0.17 ns/pF)CL + 26.5ns 35 90
Switch Input to Switch tPLH, tPHL 10 tPLH, tPHL =(0.08 ns/pF)CL + 11ns 15 40 ns
Output (RL = 10 kΩ) 15 tPLH, tPHL =(0.06 ns/pF)CL + 9ns 12 30
5 (RL=10kΩ, VEE=VSS) 350 700
tPHZ, tPLZ
Inhibit to Output 10 Output “1” or “0” to High Impedance, 170 340 ns
tPZH, tPZL
15 or High Impedance to “1” or “0” Level 140 280
5 360 720
Control Input to Output tPLH, tPHL 10 RL = 10 kΩ, VEE = VSS 160 320 ns
15 120 240
Total Harmonic Distortion THD 10 RL = 10KΩ, f = 1 kHz, Vin = 5 VPP 0.07 %
RL = 1kΩ, VIN = 1/2 (VDD–VEE) p–p,
Bandwidth BW 10 17 MHz
CL = 50pF, 20 Log (Vout/Vin) = -3dB)
Off Channel Feedthrough RL=1KΩ, VIN = 1/2 (VDD–VEE) p–p
10 -50 dB
Attenuation fIN = 4.5 MHz
RL = 1kΩ, VIN = 1/2 (VDD–VEE) p–p
Channel Separation 10 -50 dB
fIN = 3MHz
Crosstalk, Control Input to R1 = 1kΩ, RL = 10kΩ Control
10 75 mV
Common O/I tTLH = tTHL = 20ns, Inhibit = VSS
Note 1. Data of “TYP” is intended as an indication of the IC’s potential performance.
2. For voltage drops across the switch(∆Vsw)>600mV (>300mV at high temperature), excessive VDD current
may be drawn, i.e. the current out of the switch may contain both VDD and switch input components. The
reliability of the device will be unaffected unless the Maximum Ratings are exceeded.
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5. 4051 CMOS IC
TEST CIRCUIT
VDD VDD VDD
IN/OUT OUT/IN
VEE
VDD
LEVEL
CONVERTED
CONTROL IN/OUT OUT/IN
CONTROL
VEE
Switch Circuit Schematic
TRUTH TABLE
16 VDD
Control Inputs INH 6
ON Switches BINARY TO 1 - OF - 8
INHIBIT C B A A 11 LEVEL
B 10 CONVERTER DECODER WITH
0 0 0 0 X0 C 9 INHIBIT
0 0 0 1 X1
0 0 1 0 X2 8 VSS 7 VEE
0 0 1 1 X3 X0 13
X1 14
0 1 0 0 X4 X2 15
0 1 0 1 X5 X3 12 3X
0 1 1 0 X6
X4 1
0 1 1 1 X7
X5 5
1 x x x None X6 2
x = Don’t Care X7 4
UTC 4051 Functional Diagram
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6. 4051 CMOS IC
TYPICAL CHARACTERISTICS
350 350
VDD = 7.5 V VDD = 5.0 V
300 VEE = - 7.5 V 300 VEE = -5.0 V
"ON" Resistance, RON (Ω)
Ta =25℃ Ta =25℃
"ON" Resistance, RON (Ω)
250 250
200 200
150 150
100 100
50 50
0 0
-10 -8.0 -6.0 -4.0 -2.0 0 2.0 4.0 6.0 8.0 10 -10 -8.0 -6.0 -4.0 -2.0 0 2.0 4.0 6.0 8.0 10
Input Voltage , VIN (V) Input Voltage , VIN (V )
350
VDD = 2.5 V
300 VEE = - 2.5 V
Ta =25℃
"ON" Resistance, RON (Ω)
250
200
150
100
50
0
-10 -8.0 -6.0 -4.0 -2.0 0 2.0 4.0 6.0 8.0 10
Input Voltage , VIN (V )
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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