Datasheet

ADG3248
Rev. A | Page 3 of 12
SPECIFICATIONS
V
CC
= 2.3 V to 3.6 V, GND = 0 V, all specifications T
MIN
to T
MAX
, unless otherwise noted.
1
Table 2.
B Version
Parameter Symbol Conditions Min Typ
2
Max Unit
DC ELECTRICAL CHARACTERISTICS
Input High Voltage V
INH
V
CC
= 2.7 V to 3.6 V 2.0 V
V
INH
V
CC
= 2.3 V to 2.7 V 1.7 V
Input Low Voltage V
INL
V
CC
= 2.7 V to 3.6 V 0.8 V
V
INL
V
CC
= 2.3 V to 2.7 V 0.7 V
Input Leakage Current I
I
±0.01 ±1 μA
Off State Leakage Current I
OZ
0 ≤ A, B ≤ V
CC
±0.01 ±1 μA
On State Leakage Current I
OL
0 ≤ A, B ≤ V
CC
±0.01 ±1 μA
Maximum Pass Voltage V
P
V
A
/V
B
= V
CC
= 3.3 V, I
O
= −5 μA 2.0 2.5 2.9 V
V
A
/V
B
= V
CC
= 2.5 V, I
O
= −5 μA 1.5 1.8 2.1 V
CAPACITANCE
3
A Port Off Capacitance C
A
Off f = 1 MHz 3.5 pF
B Port Off Capacitance C
B
Off f = 1 MHz 4.5 pF
A, B Port On Capacitance C
A
, C
B
On f = 1 MHz 8.5 pF
Control Input Capacitance C
IN
f = 1 MHz 4 pF
SWITCHING CHARACTERISTICS
3
Propagation Delay A to B or B to A, t
PD
4
t
PHL
, t
PLH
C
L
= 50 pF, V
CC
= 3 V 0.225 ns
Propagation Delay Matching
5
5 ps
Transition Time t
TRANS
R
L
= 510 Ω, C
L
= 50 pF 16 29 ns
Break-Before-Make Time t
BBM
R
L
= 510 Ω, C
L
= 50 pF 5 10 ns
Maximum Data Rate V
CC
= 3.3 V; V
A
/V
B
= 2 V 1.244 Gbps
Channel Jitter V
CC
= 3.3 V; V
A
/V
B
= 2 V 45 ps p-p
DIGITAL SWITCH
On Resistance R
ON
V
CC
= 3 V, V
A
= 0 V, I
BA
= 8 mA 4.5 8 Ω
V
CC
= 3 V, V
A
= 1.7 V, I
BA
= 8 mA 12 28 Ω
V
CC
= 2.3 V, V
A
= 0 V, I
BA
= 8 mA 5 9 Ω
V
CC
= 2.3 V, V
A
= 1 V, I
BA
= 8 mA 9 18 Ω
On-Resistance Matching ΔR
ON
V
CC
= 3 V, V
A
= 0 V, I
A
= 8 mA 0.1 0.5 Ω
POWER REQUIREMENTS
V
CC
2.3 3.6 V
Quiescent Power Supply Current I
CC
Digital inputs = 0 V or V
CC
0.01 1 μA
1
Temperature range is as follows for B Version: −40°C to +85°C.
2
Typical values are at 25°C, unless otherwise stated.
3
Guaranteed by design, not subject to production test.
4
The digital switch contributes no propagation delay other than the resistance-capacitance (RC) delay of the typical R
ON
of the switch and the load capacitance when
driven by an ideal voltage source. Because the time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to
the system. Propagation delay of the digital switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with
the load on the driven side.
5
Propagation delay matching between channels is calculated from the on-resistance matching and load capacitance of 50 pF.