PRELIMINARY DATASHEET
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH
Description
The IDTAS4624 low on-resistance (RON), low voltage,
single-pole/double-throw (SPDT) analog switch operates
from a single +1.8 V to +5.5 V supply. The IDTAS4624
features a 0.5Ω (max) RON for its NC switch and a 0.8Ω
(max) RON for its NO switch at a +2.7 V supply. It also
features break-before-make switching action (2 ns) with
t
= 50 ns and t
ON
is 1.8 V logic-compatible with a +2.7 V to +3.3 V supply.
= 40 ns at +3 V. The digital logic input
OFF
Applications
• Speaker headset switching
• MP3 players
• Battery-operated equipment
• Audio and video signal routing
• PCMCIA cards
• Cellular phones
• Modems
Features
• +1.8 V to +5.5 V single-supply operation
• Rail-to-rail signal handling
• 1.8 V logic compatibility
• RON match between channels: 0.06Ω (max)
• RON flatness over signal range: 0.15Ω (max)
• NCx Switch RON: 0.5Ω max (+2.7 V Supply) (ICSAS4684)
• NOx Switch RON: 0.8Ω max (+2.7 V Supply)
• Low crosstalk: -68dB (100 kHz)
• High Off-isolation: -64dB (100 kHz)
• THD: 0.03%
• 50 nA (max) supply current
• Low leakage currents: 1 nA (max) at TA = +25°C
• 6-pin SOT-23 package
IDTAS4624
Block Diagram
IDT™
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH 1
IDTAS4624 REV B 061307
IDTAS4624
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH ANALOG SWITCH
Pin Assignment (SOT-23)
Truth Table
IN1 NO1 NC1
0ONOFF
1OFFON
Note: Switches shown for logic “0” input.
Pin Descriptions
Pin Numbers Pin Name Pin Description
4 NC Analog switch. Normally closed terminal.
1 IN Digital control input.
5 COM1 Analog switch. Common terminal 1.
6 NO Analog switch. Normally open terminal.
2 V+ Positive supply voltage input.
3 GND Ground.
IDT™
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH 2
IDTAS4624 REV B 061307
IDTAS4624
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH ANALOG SWITCH
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the IDTAS4624. These ratings, which are
standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these
or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range. All voltages referenced to
ground.
Symbol Rating Min Max Unit
V+, IN -0.3 +6 V
COM, NO, NC -0.3 (V+ + 0.3) V
Continuous current ±300
NO, NC, COM
Peak current (pulsed at 1ms, 10% duty cycle) ±500
Continuous power dissipation (TA = +70°C) and
12-bump UCSP (derate 11.4mW/°C above +70°C)
Operating temperature range 0 +70 °C
TSTG Storage temperature range -65 +150 °C
Lead temperature (soldering, 10s) +300 °C
Bump temperature (soldering, infrared, 15s) +200 °C
Vapor phase (60s) +215 °C
+909 mW
mAPeak current (pulsed at 1ms, 50% duty cycle) ±400
IDT™
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH 3
IDTAS4624 REV B 061307
IDTAS4624
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH ANALOG SWITCH
Electrical Characteristics, +3 V Supply (notes 1, 2)
Unless stated otherwise, V+ = 2.7 V to 3.3 V, VIH = 1.4 V, VIL = 0.5 V, TA = T
Parameter Symbol Conditions T
Analog Switch
Analog Signal Range VNO, V
NC On-Resistance R
NO On-Resistance R
On-Resistance Match
between channels
NC On-Resistance Flatness R
NO On-Resistance Flatness R
NO or NC Off-leakage Current I
COM On-leakage Current I
NC, VCOM
ON(NC)
V+ = 2.7 V, I
COM
= 100 mA,
VNC = 0 to V+; Note 3
ON(NO)
V+ = 2.7 V, I
COM
= 100 mA,
VNO = 0 to V+; Note 3
R
ON
V+ = 2.7 V, I
COM
= 100 mA,
VNO or VNC = 1.5 V; Notes 3, 4
FLAT(NC)
V+ = 2.7 V, I
COM
= 100 mA,
VNC = 0 to V+; Note 5
FLAT(NO)
(OFF) or
NO
INC(OFF)
(ON) V+ = 3.3 V, VNO or VNC = 3 V, 0.3
COM
V+ = 2.7 V, I
= 0 to V+; Note 5
V
NO
V+ = 3.3 V, VNO or VNC = 3 V, 0.3 V
V
= 0.3 V, 3 V
COM
COM
= 100 mA,
V, or floating
V
= 0.3 V, 3 V, or floating
COM
Dynamic Characteristics
Turn-on Time t
Turn-off Time t
Break-Before-Make-Delay t
ON
OFF
BBM
Charge Injection Q COM = 0, RS = 0, C
Off-Isolation V
Crosstalk V
ISO
CT
Total Harmonic Distortion THD R
NC Off-Capacitance C
NC Off-Capacitance C
NC On-Capacitance C
NC On-Capacitance C
(OFF) f = 1 MHz +25°C 84 pF
NC
(OFF) f = 1 MHz +25°C 37 pF
NO
(ON) f = 1 MHz +25°C 190 pF
NC
(ON) f = 1 MHz +25°C 150 pF
NO
V+ = 2.7 V, VNO or VNC = 1.5 V,
RL = 50Ω, CL = 35 pF
V+ = 2.7 V, VNO or VNC = 1.5 V,
RL = 50Ω, CL = 35 pF
V+ = 2.7 V, VNO or VNC = 1.5 V,
RL = 50Ω, CL = 35 pF
= 1 nF +25°C 200 pC
L
CL = 5 pF; RL = 50Ω, f = 100 kHz,
V
COM
= 1 V
RMS
, Note 6
f = 100 kHz, RL = 50Ω, CL = 5 pF,
= 1 V
V
COM
= 600Ω, IN = 2 V p-p,
L
RMS
f = 20Hz to 20 kHz
MIN
to T
. Typical values are at +3 V and 25°C
MAX
A
T
MIN to TMAX
Min. Typ. Max. Units
0V+V
+25°C 3.0 0.5 Ω
T
MIN to TMAX
+25°C 0.45 0.8 Ω
T
MIN to TMAX
+25°C 0 0.6 Ω
T
MIN to TMAX
T
MIN to TMAX
T
MIN to TMAX
+25°C -1 +1 nA
T
MIN to TMAX
-10 +10
+25°C -2 +2 nA
T
MIN to TMAX
-20 +20
+25°C 30 50 ns
T
MIN to TMAX
+25°C 25 30 ns
T
MIN to TMAX
T
MIN to TMAX
215 ns
+25°C -64 dB
+25°C -68 dB
+25°C 0.03 %
0.5
0.8
0.6
0.15 Ω
0.35 Ω
60 ns
40 ns
IDT™
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH 4
IDTAS4624 REV B 061307
IDTAS4624
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH ANALOG SWITCH
Parameter Symbol Conditions T
Digital I/O
Input Logic HIGH V
Input Logic LOW V
IN Input Leakage Current I
IH
IL
IN
VIN = 0 or V+
Power Supply
Power Supply Range V+ T
Supply Current I+
Notes:
1. The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive value
a maximum.
2. UCSP parts are 100% tested at +25°C only and guaranteed by design and correlation at the full hot-rated temperature.
3. Guaranteed by design.
4. R
ON
= R
ON(MAX)
- R
ON(MIN)
5. Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the
specified analog signal ranges.
6. Off-isolation = 20log10 (V
COM
, between NC1 and NC2 or between NO1 and NO2.
/ VCO), V
V+ = 5.5 V, VIN = 0 or V+,
Note 3
= output, VCO = input to off switch.
COM
Min. Typ. Max. Units
1.4 V
0.5 V
-1 1 µA
1.8 5.5 V
T
MIN to
T
MAX
T
MIN to
T
MAX
T
MIN to
T
MAX
MIN to
T
MAX
A
+25°C -50 +0.04 +50 nA
T
MIN to
T
MAX
-200 +200
IDT™
0.5Ω LOW VOLTAGE, SINGLE SPDT ANALOG SWITCH 5
IDTAS4624 REV B 061307
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