SGM4582 Datasheet, PDF (10/17 Pages) SG Micro Corp – CMOS Analog Multiplexer

SGM4582
TEST CIRCUITS
High Voltage, CMOS Analog Multiplexer
VCC
{ CHANNEL
SELECT
VENABLE
50Ω
VCC
A
X_, Y_
B
SGM4582
ENABLE
GND
X,Y
VEE
VEE = 0V FOR SINGLE-SUPPLY OPERATION.
TEST EACH SECTION INDIVIDUALLY.
VEE
VCC
VENABLE
0V
VOUT
CL=1000pF
VOUT
ΔVOUT
ΔVOUT IS THE MEASURED VOLTAGE DUE TO CHARGE
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = ΔVOUT × CL
Test Circuit 4. Charge Injection (Q)
{ CHANNEL
SELECT
VCC _10nF
VCC
A
X_,Y_
B
SGM4582
ENABLE
GND
X,Y
VEE
10nF
VEE
VIN
V_OUT
NETWORK
ANALYZER
50Ω
50Ω
MEAS.
50Ω
REF.
50Ω
OFF-ISOLATION = 20log (VOUT/VIN)
ON-LOSS = 20log (VOUT/VIN)
CROSSTALK = 20log (VOUT/VIN)
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL (A, B) TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Test Circuit 5. Off Isolation, On Loss and Crosstalk
VCC
{ CHANNEL
SELECT
VCC
A
X_,Y_
B
SGM4582
ENABLE
GND
X,Y
VEE
VEE = 0V FOR SINGLE-SUPPLY OPERATION.
TEST EACH SECTION INDIVIDUALLY.
VEE
Test Circuit 6. Capacitance
1MHz
CAPACITANCE
ANALYZER
SG Micro Corp
10
www.sg-micro.com