74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True
Isolation
Product datasheet, Rev. 1.0
Aug 08, 2024
1.General Description
The 74LVC1G3157G is a single SPDT low on-resistance analog switch. It can operate from 1.5V
to 5.5V power supply. The device offers low ON-state resistance and excellent ON-state
resistance matching with break-before-make feature, to prevent signal distortion during the
transferring of a signal from one channel to another. The device is capable of truly isolation.
Even when A overrides VCC, very little current will flow back to the supply.
2.Features and Benefits
Wide Supply Range from 1.5 V to 5.5 V
Low ON-state resistance, typically 1.9 Ω (VCC=5.5 V)
1.8 V Compatible Control Logic Inputs
High Off-Isolation: -80 dB @ 10 kHz
Low Channel-to-Channel Crosstalk: -82 dB @ 10 kHz
High Bandwidth: -3dB @ 800MHz
Low Quiescent Current (< 1uA) when VCC = 3.3 V
3.Applications
Audio, Video, UART, USB2.0 Signal and Supply Routing
Cell phones and TWS headset
Rev. 1.0 – Aug 08, 2024
1
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
4.Ordering Information
Table 1. Ordering information
Type number
Package
Name
Description
Quantity
74LVC1G3157GW
SOT363
SOT363 package, 6 pins
2.1 mm × 1.25 mm; 1.1 mm (Max) height
3000
74LVC1G3157GV
SOT23-6L
SOT23 package, 6pins
2.92 mm × 1.6 mm; 1.25 mm (Max) height
3000
5.Pinning Information
5.1. Pin map
Fig 1. Top view pin configuration SOT363 and
SOT23-6L
5.2. Pin description
Table 2. Pin description
Symbol
Pin
Description
B1
1
Analog/Digital Signal Port (Normally open)
Rev. 1.0 – Aug 08, 2024
2
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
GND
2
Ground (0V)
B0
3
Analog/Digital Signal Port (Normally closed)
A
4
Common Signal Port
VCC
5
Supply voltage
SEL
6
Logic Input Control
Rev. 1.0 – Aug 08, 2024
3
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
6.Functional Description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level.
Input SEL
Channel on
L
B0
H
B1
7.Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not
recommended. In addition, extended exposure to stresses above the recommended operating conditions may
affect device reliability. The absolute maximum ratings are stress ratings only.
Table 4. Absolute Maximum Ratings
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND.
Symbol
Parameter
VCC
Min
Max
Unit
supply voltage
-0.3
6.5
V
VSEL
control Input Voltage
-0.3
6.5
V
VA
signal input voltage
-0.3
6.5
V
continuous Current Through A, B0, B1
±100
mA
Imax
peak Current Through A, B0, B1 (pulsed at 1ms
50% duty cycle)
±200
mA
TJ
junction Temperature under Bias
150
°C
TL
lead Temperature (Soldering, 10 seconds)
260
°C
RθJA
thermal resistance
350
Rev. 1.0 – Aug 08, 2024
Conditions
o
C/W
4
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
8.Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation.
Recommended operating conditions are specified to ensure optimal performance to the datasheet
specifications. Please do not exceed them or design to Absolute Maximum Ratings.
Table 5. Recommended Operating Conditions
Symbol
Parameter
VCC
supply voltage
VSEL
Min
Max
Unit
1.5
5.5
V
control input voltage
0
5.5
V
VA
signal input voltage
0
VCC
V
Tamb
ambient temperature
-40
125
°C
Rev. 1.0 – Aug 08, 2024
Conditions
5
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
9.Electrical Characteristics
Table 6. Static characteristics
Tamb=25 ℃, VCC=3.3 V, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC = 3.4 V to 5.5 V
1.6
V
VCC = 1.5 V to 3.3 V
1.4
V
DC Electrical Characteristics
VIH
input logic high level
VIL
input logic low level
ICC
VCC = 3.4 V to 5.5 V
0.6
V
VCC = 1.5 V to 3.3 V
0.4
V
supply current
IA = 0, VSEL = 0 or VSEL = VCC
1.0
μA
ΔICC
additional supply current
IA = 0, VCC = 2.5 V or 4.2 V
VSEL = 1.6 V
3.0
μA
Ioff
OFF-state switch leakage
current from A to B0 (or
B1)
VA = 5 V , VB0 or VB1 = 0 V
±2.0
μA
RON
RFLAT
ΔRON
on-resistance
on-resistance flatness
on-resistance matching
between channels
Rev. 1.0 – Aug 08, 2024
VCC = 3.5 V , VA = 0.8 V to 2.0 V,
IA = 10 mA
3.4
4.0
Ω
VCC = 4.5 V , VA = 0.8 V to 2.3 V,
IA = 10 mA
2.4
3.0
Ω
VCC = 5.5 V , VA = 0.8 V to 2.6 V,
IA = 10 mA
1.9
2.5
Ω
VCC = 3.5 V , VA = 0.8 V to 2.0 V,
IA = 10 mA
0.2
0.4
Ω
VCC = 4.5 V , VA = 0.8 V to 2.3 V,
IA = 10 mA
0.25
0.45
Ω
VCC = 5.5 V , VA = 0.8 V to 2.6 V,
IA = 10 mA
0.3
0.5
Ω
VCC = 3.5 V , VA = 0.8 V to 2.0 V,
IA = 10 mA
0.1
0.2
Ω
VCC = 4.5 V , VA = 0.8 V to 2.3 V,
IA = 10 mA
0.1
0.2
Ω
VCC = 5.5 V , VA = 0.8 V to 2.6 V,
IA = 10 mA
0.1
0.2
Ω
6
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
AC Electronics Characteristics
tON
turn-On Time
VA=1.5V, CL=50pF, RL=50Ω
470
ns
tOFF
turn-Off Time
VA=1.5V, CL=50pF, RL=50Ω
120
ns
tBBM
break-before-make time
VA=1.5V, CL=50pF, RL=50Ω
600
ns
BW
-3dB Bandwidth
CL=0pF
800
MHz
OIRR
off isolation
f=10 KHz
-80
dB
f=240 MHz
-31
dB
XTALK
crosstalk
f=10 KHz
-82
dB
f=240 MHz
-26
dB
THD
total harmonic distortion
f=20Hz to 20KHz
VA=600mVpp, RL=32Ω
-80
dB
Capacitance
CON
On Capacitance
f=100KHz
12
pF
COFF
Off Capacitance
f=100KHz
4
pF
Rev. 1.0 – Aug 08, 2024
7
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
10. Package Outline
SOT363
Rev. 1.0 – Aug 08, 2024
8
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
SOT23-6L
Rev. 1.0 – Aug 08, 2024
9
74LVC1G3157
Low Voltage and High Speed SPDT Analog Switch with True Isolation
11. Revision History
Table 7. Revision history
Document ID
Release Date
Data sheet status
74LVC1G3157 Rev.1.0 Oct 30, 2023
Product datasheet
Rev. 1.0 – Aug 08, 2024
Change notice
Supersedes
10
