ALD4211PC ALD [Advanced Linear Devices], ALD4211PC Datasheet - Page 4

• Manufacturer Part Number: ALD4211PC
• Description: CMOS LOW VOLTAGE HIGH SPEED QUAD PRECISION ANALOG SWITCHES
• Manufacturer: ALD [Advanced Linear Devices]

The ALD4211/ALD4212/ALD4213
precision due to these factors:
1. The analog switch has ultra low capacitive charge coupling
2. With special charge balancing and charge cancellation
3. The analog switch switching transistors have pA leakage
4. The internal switch timing allows for the analog switch to
ALD4211/ALD4212
ALD4213
Parameter
Turn On
Delay time
Turn Off
Delay time
Break-Before-Make
Delay Time
Charge Injection
Off Isolation
Crosstalk
Total Harmonic
Distortion
Com/Out
Off Capacitance
Channel On
Capacitance
Pin to Pin
Capacitance
AC ELECTRICAL CHARACTERISTICS
T
so that the charge stored on a 200pF sampling capacitor
is minimally affected.
circuitry designed on chip, the ALD4211/ALD4212/
ALD4213 achieves ultra low charge injection of typically
only 0.2pC resulting in extremely low signal distortion to
the external circuit.
currents minimizing the droop rate of the sampling circuit.
turn off internally without producing any residual transistor
channel charge injection, which may affect external
circuits. With a low loss polystyrene or polypropylene
sampling capacitor, long data retention times are possible
without significant signal loss.
A
= 25 C V
+
= +5.0V, V
Symbol
t
t
t
Q
T
COM (OFF)
OUT (OFF)
C
C
ON
OFF
BD
HD
DS (ON)
PP
INJ
- =
GND = 0.0V unless otherwise specified
4211/4212/4213 (PC)
Min
15
feature very high
0.05
0.01
Typ
0.2
3.0
5.7
0.5
85
46
40
75
90
Max
170
1.0
90
Advanced Linear Devices
4211/4212/4213 (DC)
Min
15
0.05
0.01
Typ
0.2
3.0
5.7
0.6
85
46
40
75
90
Max
170
The ALD4211/ALD4212/ALD4213 CMOS analog switches,
when used with industry standard pinout connection, have
the input and output pins reversed with the signal source
input connected to OUT pins and COM pins used as output
pins. In this connection and when used with 1,000pF or
greater value capacitors, or when connected to a DC current
or resistive load, the switch would not be operating in an ultra
low charge injection mode. Typical charge injection, in this
case, would be 5pC as the pin to pin capacitive coupling
effect would dominate. In this connection, all the other
characteristics of the ALD4211/ALD4212/ALD4213 CMOS
analog switches remain the same.
1.0
90
4211/4212/4213 (SC)
15
Min
0.05
0.01
0.25
Typ
0.2
3.0
5.7
85
46
40
75
90
Max
170
1.0
90
Unit
ns
ns
dB
%
ns
pC
dB
pF
pF
pF
(Note 7)
At f = 100KHz, (Note 5)
At f = 100KHz, (Note 6)
R
R
(Note 3) (Note 4)
(Note 7)
Test Conditions
L
L
= 10K
= 100K
4