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DG2302
New Product
Vishay Siliconix
High-Speed, Low rON, SPST Analog Switch
(1-Bit Bus Switch with Level-Shifter)
FEATURES
D D D D D D SC-70 5-Lead Package 5-W Switch Connection Between Two Ports Minimal Propagation Delay Through The Switch Low ICC Zero Bounce In Flow-Through Mode Control Inputs Compatible with TTL Level
DESCRIPTION
The DG2302 is a high-speed, 1-bit, low power, TTL-compatible bus switch. Using sub-micron CMOS technology, DG2302 achieves low on-resistance and negligible propagation delay. The DG2302 consist of a bi-directional input/output pins A and B. When the output enable (OE) is low, the input/output pins are connected. When the OE is high, the switch is open and a high-impedance state exists between input/output pins A and B.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
TRUTH TABLE
SC-70
A B GND 1 2 3 Top View Device Marking: E5 4 OE 5 V+
OE
L H
B
A HiZ State
Function
Connect Disconnect
ORDERING INFORMATION Temp Range
-40 to 85C
Package
SC70-5
Part Number
DG2302DL
Document Number: 72072 s-03421--Rev. A, 03-Mar-03
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DG2302
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Reference to GND V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6 V OE, A, Ba . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (V+ + 0.3 V) Continuous Current (Any terminal) . . . . . . . . . . . . . . . . . . . . . . . . . . . "50 mA Peak Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "200 mA (Pulsed at 1 ms, 10% duty cycle) Storage Temperature (D Suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150C Power Dissipation (Packages)b 5-Pin SC70c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mW Notes: a. Signals on A, or B or OE exceeding V+ will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC Board. c. Derate 3.1 mW/_C above 70_C
New Product
SPECIFICATIONS (V+ = 5.0 V)
Test Conditions Otherwise Unless Specified Parameter DC Characteristics
V+ = 4.5 V, VA = 0 V, IB = 64 mA On-Resistance rON V+ = 4.5 V, VA = 0 V, IB = 30 mA V+ = 4.5 V, VA = 2.4 V, IB = 15 mA Switch Off Leakage Current Switchl-On Leakage Current Input High Voltage Input Low Voltage Input Current I(off) I(on)
VIH
Limits
-40 to 85_C
Symbol
V+ = 5 V, "10%, VIN = 0.8 or 2.0 Ve
Tempa
Minb
Typc
Maxb
Unit
Full Full Full Full Full Full Full -10 -10 2.0
7 7 50 10 10 mA W
V+ = 5.5 V, VA = 1 V/4.5 V, VB = 4.5 V/1 V V+ = 5.5 V, VA = VB = 1 V/4.5 V
VIL IIL or IIH VOE = 0 or V+
0.8 -1 1
V mA
Full
Dynamic Characteristics
Prop Delay Bus to Busf Bus-to-Bus tPHL tPLH tPZL tPZH tPLZ tPHZ
Cin
Full VLD = Open (Figure 1 and 2) VLD = 7 V, V+ = 4.5 V to 5.5 V (Figure 1 and 2) VLD = Open, V+ = 4.5 V to 5.5 V (Figure 1 and 2) VLD = 7 V, V+ = 4.5 V to 5.5 V (Figure 1 and 2) VLD = Open, V+ = 4.5 V to 5.5 V (Figure 1 and 2) Full Full Full Full Full Room Room VOE = 0 or V+ f = 1 MHz V+, Room 5.0 5.0 3.9 1.0 3.5 5 11
1 1 ns
Output Enable Timed
Output Disable Timed Input Capacitance Channel-Off Capacitanced Channel-On Capacitanced
C(off) CON
p pF
Power Supply
Power Supply Range Power Supply Current Notes: a. b. c. d. e. f. Room = 25C, Full = as determined by the operating suffix. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. Typical values are for design aid only, not guaranteed nor subject to production testing. Guarantee by design, nor subjected to production test. VIN = input voltage to perform proper function. Guaranteed by design and not production tested. The bus switch propagation delay is a function of the RC time constant contributed by the on-resistance and the specified load capacitance with an ideal voltage source (zero output impedance) driving the switch. V+ VOE = 0 I+ VOE = V+ 4.0 0.9 5.5 1.5 1.0 V mA mA
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Document Number: 72072 s-03421--Rev. A, 03-Mar-03
DG2302
New Product
AC LOADING AND WAVEFORMS
Vishay Siliconix
VLD
Ra = 500 W SWITCH INPUT A B SWITCH OUTPUT CL OE Rb = 500 W CL = 50 pF
LOGIC INPUT
Input driven by 50-W source terminated in 50 W CL includes load and stray capacitance Input PRR = 1.0 MHz, tW = 50 ns
Figure 1. AC Test Circuit
tf = 2.5 ns tr = 2.5 ns 90% Switch Input 10% tw tPLH tPHL VOH 1.5 V 1.5 V Output 1.5 V 1.5 V 90% 1.5 V 10% tf = 2.5 ns 3.0 V Logic Input 90% 1.5 V 10% GND tPZL 10%
tr = 2.5 ns 90% 1.5 V GND tPLZ VLD 2 3.0 V
VOL + 0.3 V VOL tPZH tPHZ VOH VOH -0.3 V
Output
VOL Output 1.5 V
0V
Figure 2. AC Waveforms
Document Number: 72072 s-03421--Rev. A, 03-Mar-03
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DG2302
Vishay Siliconix
New Product
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
VOH vs. Supply Voltage
4.0 T = 25_C 3.5 VOH - Output Voltage (V) -0.1 mA -15 mA -30 mA -64 mA 3.0
2.5
2.0
1.5
1.0 4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
5.8
V+ - Supply Voltage (V)
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Document Number: 72072 s-03421--Rev. A, 03-Mar-03

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