Refer to the PDF data sheet for device specific package drawings
The TS3A24157 is a bidirectional, 2-channel, single-pole double-throw (SPDT) analog switch that is designed to operate from 1.65 V to 3.6 V. The device offers low ON-state resistance and excellent ON-state resistance matching with the break-before-make feature, to prevent signal distortion during the transfer of a signal from one channel to another. The device has excellent total harmonic distortion (THD) performance and consumes very-low power. These features make this device suitable for portable audio applications.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TS3A24157 | UQFN (10) | 1.50 mm × 2.00 mm |
VSSOP (10) | 3.00 mm × 3.00 mm |
Changes from A Revision (September 2007) to B Revision
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | NC1 | I/O | Normally closed signal path |
2 | NO1 | I/O | Normally open signal path |
3 | NC2 | I/O | Normally closed signal path |
4 | NO2 | I/O | Normally open signal path |
5 | GND | — | Ground |
6 | COM2 | I/O | Common signal path |
7 | IN2 | I | Digital control to connect COM2 to NO2 or NC2 |
8 | IN1 | I | Digital control to connect COM1 to NO1 or NC1 |
9 | COM1 | I/O | Common signal path |
10 | VCC | — | Power supply |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Supply voltage | –0.5 | 3.6 | V | |
Analog signal voltage(4) | –0.5 | VCC + 0.5 | V | |
Digital input voltage | –0.5 | 3.6 | V | |
Analog port diode current | VNC, VNO, VCOM < 0 | –50 | 50 | mA |
ON-state switch current | VNC, VNO, VCOM = 0 to VCC | –300 | 300 | mA |
ON-state peak switch current(5) | VNC, VNO, VCOM = 0 to VCC | –500 | 500 | mA |
Digital input clamp current | VIN < 0 | –50 | mA | |
Continuous current through VCC | 100 | mA | ||
Continuous current through GND | –100 | mA | ||
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1000 |
MIN | MAX | UNIT | |||
---|---|---|---|---|---|
VCC | Supply voltage | 1.65 | 3.6 | V | |
VNC | Analog signal voltage | NC1, NC2 | 0 | VCC | V |
VNO | NO1, NO2 | 0 | VCC | ||
VCOM | COM1, COM2 | 0 | VCC | ||
VIN | Digital input voltage | 0 | VCC | V |
THERMAL METRIC(1) | TS3A24157 | UNIT | ||
---|---|---|---|---|
DGS (VSSOP) | RSE (UQFN) | |||
10 PINS | 10 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 188.5 | 160.3 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 76.5 | 77.8 | °C/W |
RθJB | Junction-to-board thermal resistance | 108.2 | 82.2 | °C/W |
ψJT | Junction-to-top characterization parameter | 15.3 | 4.3 | °C/W |
ψJB | Junction-to-board characterization parameter | 106.8 | 82.2 | °C/W |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |||
---|---|---|---|---|---|---|---|---|
ANALOG SWITCH | ||||||||
rPEAK | Peak ON resistance | 0 ≤ (VNC or VNO) ≤ VCC, VCC = 2.7 V, ICOM = –100 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.5 | 0.65 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.75 | |||||||
rON | ON-state resistance | VNC or VNO = 2 V, VCC = 2.7 V, ICOM = –100 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.45 | 0.6 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.65 | |||||||
ΔrON | ON-state resistance match between channels | VNC or VNO = 2 V or 0.8 V, VCC = 2.7 V, ICOM = –100 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.05 | 0.07 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.08 | |||||||
rON(FLAT) | ON-state resistance flatness | VCC = 2.7 V, ICOM = –100 mA, Switch ON, See Figure 10 | 0 ≤ (VNC or VNO) ≤ VCC | 0.025 | Ω | |||
VNC or VNO = 2 V or 0.8 V |
TA = 25°C | 0.01 | 0.04 | |||||
–40°C ≤ TA ≤ 85°C | 0.1 | |||||||
INC(OFF), INO(OFF) | NC and NO OFF leakage current | VNC or VNO = 1 V and VCOM = 3 V, or VNC or VNO = 3 V and VCOM = 1 V; VCC = 3.6 V, Switch OFF, See Figure 11 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –250 | 250 | ||||||
INC(ON), INO(ON) | NC and NO ON leakage current | VNC or VNO = 1 V or 3 V, VCOM = Open, VCC = 3.6 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
ICOM(ON) | COM ON leakage current | VNC or VNO = Open, VCOM = 1 V or 3 V, VCC = 3.6 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
DIGITAL CONTROL INPUTS (IN1, IN2)(1) | ||||||||
VIH | Input logic high | 2.7 V ≤ VCC ≤ 3.6 V, –40°C ≤ TA ≤ 85°C | 1.4 | V | ||||
VIL | Input logic low | 2.7 V ≤ VCC ≤ 3.6 V, –40°C ≤ TA ≤ 85°C | 0.5 | V | ||||
IIH, IIL | Input leakage current | VIN = 3.6 V or GND, VCC = 3.6 V | TA = 25°C | –50 | 5 | 50 | nA | |
–40°C ≤ TA ≤ 85°C | –150 | 150 | ||||||
DYNAMIC | ||||||||
tON | Turnon time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 3 V, TA = 25°C | 20 | 35 | ns | ||
2.7 V ≤ VCC ≤ 3.6 V, –40°C ≤ TA ≤ 85°C | 40 | |||||||
tOFF | Turnoff time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 3 V, TA = 25°C | 12 | 25 | ns | ||
2.7 V ≤ VCC ≤ 3.6 V, –40°C ≤ TA ≤ 85°C | 30 | |||||||
tBBM | Break-before-make time | VNC = VNO = VCC, RL = 50 Ω, CL = 35 pF, See Figure 15 |
VCC = 3 V, TA = 25°C | 1 | 10 | 25 | ns | |
2.7 V ≤ VCC ≤ 3.6 V, –40°C ≤ TA ≤ 85°C | 0.5 | 30 | ||||||
QC | Charge injection | VGEN = 0, RGEN = 0, CL = 1 nF, See Figure 19 | 8.75 | pC | ||||
CNC(OFF), CNO(OFF) | NC and NO OFF capacitance | (VNC or VNO) = VCC or GND, Switch OFF, See Figure 13 | 50 | pF | ||||
CNC(ON), CNO(ON) | NC and NO ON capacitance | (VNC or VNO) = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CCOM(ON) | COM ON capacitance | VCOM = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CI | Digital input capacitance | VIN = VCC or GND, See Figure 13 | 2 | pF | ||||
BW | Bandwidth | RL = 50 Ω, Switch ON, See Figure 16 | 50 | MHz | ||||
OISO | OFF isolation | RL = 50 Ω, f = 1 MHz, See Figure 17 | –72 | dB | ||||
XTALK | Crosstalk | RL = 50 Ω, f = 1 MHz, See Figure 18 | –72 | dB | ||||
THD | Total harmonic distortion | RL = 600 Ω, CL = 50 pF, f = 20 Hz to 20 kHz, See Figure 20 | 0.005% | |||||
SUPPLY | ||||||||
ICC | Positive supply current | VIN = VCC or GND, VCC = 3.6 V | TA = 25°C | 15 | 200 | nA | ||
–40°C ≤ TA ≤ 85°C | 1200 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |||
---|---|---|---|---|---|---|---|---|
ANALOG SWITCH | ||||||||
rPEAK | Peak ON resistance | 0 ≤ (VNO or VNC) ≤ VCC, VCC = 2.3 V, ICOM = –8 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.55 | 0.75 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.9 | |||||||
rON | ON-state resistance | VNO or VNC = 1.8 V, VCC = 2.3 V, ICOM = –8 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.56 | 0.75 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.85 | |||||||
ΔrON | ON-state resistance match between channels | VNO or VNC = 1.8 V or 0.8 V, VCC = 2.3 V, ICOM = –8 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.1 | 0.15 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.15 | |||||||
rON(FLAT) | ON-state resistance flatness | VCC = 2.3 V, ICOM = –8 mA, Switch ON, See Figure 10 | 0 ≤ (VNO or VNC) ≤ VCC | 0.1 | 0.15 | Ω | ||
VNO or VNC = 0.8 V or 1.8 V |
TA = 25°C | 0.17 | ||||||
–40°C ≤ TA ≤ 85°C | 0.2 | |||||||
INC(OFF), INO(OFF) | NC and NO OFF leakage current | VNC or VNO = 0.5 V and VCOM = 2.2 V, or VNC or VNO = 2.2 V and VCOM = 0.5 V; VCC = 2.7 V, Switch OFF, See Figure 11 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –250 | 250 | ||||||
INC(ON), INO(ON) | NC and NO ON leakage current | VNC or VNO = 0.5 V or 2.2 V, VCOM = Open, VCC = 2.7 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
ICOM(ON) | COM ON leakage current | VNC or VNO = Open, VCOM = 0.5 V or 2.2 V, VCC = 2.7 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
DIGITAL CONTROL INPUTS (IN1, IN2)(1) | ||||||||
VIH | Input logic high | 2.3 V ≤ VCC ≤ 2.7 V, –40°C ≤ TA ≤ 85°C | 1.25 | V | ||||
VIL | Input logic low | 2.3 V ≤ VCC ≤ 2.7 V, –40°C ≤ TA ≤ 85°C | 0.5 | V | ||||
IIH, IIL | Input leakage current | VIN = 2.7 V or GND, VCC = 2.7 V | TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –50 | 50 | ||||||
DYNAMIC | ||||||||
tON | Turnon time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 2.5 V, TA = 25°C | 23 | 45 | ns | ||
2.3 V ≤ VCC ≤ 2.7 V, –40°C ≤ TA ≤ 85°C | 50 | |||||||
tOFF | Turnoff time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 2.5 V, TA = 25°C | 17 | 27 | ns | ||
2.3 V ≤ VCC ≤ 2.7 V, –40°C ≤ TA ≤ 85°C | 30 | |||||||
tBBM | Break-before- make time | VNC = VNO = VCC, RL = 50 Ω, CL = 35 pF, See Figure 15 |
VCC = 2.5 V, TA = 25°C | 2 | 14 | 30 | ns | |
2.3 V ≤ VCC ≤ 2.7 V, –40°C ≤ TA ≤ 85°C | 1 | 35 | ||||||
QC | Charge injection | VGEN = 0, RGEN = 0, CL = 1 nF, See Figure 19 | 8 | pC | ||||
CNC(OFF), CNO(OFF) | NC and NO OFF capacitance | VNC or VNO = VCC or GND, Switch OFF, See Figure 13 | 50 | pF | ||||
CNC(ON), CNO(ON) | NC and NO ON capacitance | VNC or VNO = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CCOM(ON) | COM ON capacitance | VCOM = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CI | Digital input capacitance | VIN = VCC or GND, See Figure 13 | 2 | pF | ||||
BW | Bandwidth | RL = 50 Ω, Switch ON, See Figure 16 | 50 | MHz | ||||
OISO | OFF isolation | RL = 50 Ω, f = 1 MHz, See Figure 17 | –72 | dB | ||||
XTALK | Crosstalk | RL = 50 Ω, f = 1 MHz, See Figure 18 | –72 | dB | ||||
THD | Total harmonic distortion | RL = 600 Ω, CL = 50 pF, f = 20 Hz to 20 kHz, See Figure 20 | 0.006% | |||||
SUPPLY | ||||||||
ICC | Positive supply current | VIN = VCC or GND, VCC = 2.7 V | TA = 25°C | 10 | 150 | nA | ||
–40°C ≤ TA ≤ 85°C | 700 |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |||
---|---|---|---|---|---|---|---|---|
ANALOG SWITCH | ||||||||
rPEAK | Peak ON resistance | 0 ≤ (VNO or VNC) ≤ VCC, VCC = 1.65 V, ICOM = –2 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.8 | 1.25 | Ω | ||
–40°C ≤ TA ≤ 85°C | 1.4 | |||||||
rON | ON-state resistance | VNO or VNC = 1.5 V, VCC = 1.65 V, ICOM = –2 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.6 | 0.95 | Ω | ||
–40°C ≤ TA ≤ 85°C | 1 | |||||||
ΔrON | ON-state resistance match between channels | VNO or VNC = 0.6 V or 1.5 V, VCC = 1.65 V, ICOM = –2 mA, Switch ON, See Figure 10 |
TA = 25°C | 0.1 | 0.15 | Ω | ||
–40°C ≤ TA ≤ 85°C | 0.15 | |||||||
rON(FLAT) | ON-state resistance flatness | VCC = 1.65 V, ICOM = –2 mA, Switch ON, See Figure 10 | 0 ≤ (VNO or VNC) ≤ VCC | 0.35 | 0.13 | Ω | ||
VNO or VNC = 0.6 V or 1.5 V |
TA = 25°C | 0.05 | ||||||
–40°C ≤ TA ≤ 85°C | 0.2 | |||||||
INC(OFF), INO(OFF) | NC and NO OFF leakage current | VNC or VNO = 0.3 V and VCOM = 1.65 V, or VNC or VNO = 1.65 V and VCOM = 0.3 V; VCC = 1.65, Switch OFF, See Figure 11 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –250 | 250 | ||||||
INC(ON), INO(ON) | NC and NO ON leakage current | VNC or VNO = 0.3 V or 1.65 V, VCOM = Open, VCC = 1.95 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
ICOM(ON) | COM ON leakage current | VNC or VNO = Open, VCOM = 0.3 V or 1.65 V, VCC = 1.95 V, Switch ON, See Figure 12 |
TA = 25°C | –50 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | –400 | 400 | ||||||
DIGITAL CONTROL INPUTS (IN1, IN2)(1) | ||||||||
VIH | Input logic high | 1.65 V ≤ VCC ≤ 1.95 V, –40°C ≤ TA ≤ 85°C | 1 | V | ||||
VIL | Input logic low | 1.65 V ≤ VCC ≤ 1.95 V, –40°C ≤ TA ≤ 85°C | 0.4 | V | ||||
IIH, IIL | Input leakage current | VIN = 1.95 V or GND, VCC = 1.95 V | 25°C | 0 | 50 | nA | ||
–40°C ≤ TA ≤ 85°C | 150 | |||||||
DYNAMIC | ||||||||
tON | Turnon time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 1.8 V, TA = 25°C | 33 | 75 | ns | ||
1.65 V ≤ VCC ≤ 1.95 V, –40°C ≤ TA ≤ 85°C | 80 | |||||||
tOFF | Turnoff time | VCOM = VCC, RL = 50 Ω, CL = 35 pF, See Figure 14 |
VCC = 1.8 V, TA = 25°C | 24 | 35 | ns | ||
1.65 V ≤ VCC ≤ 1.95 V, –40°C ≤ TA ≤ 85°C | 40 | |||||||
tBBM | Break-before- make time | VNC = VNO = VCC, RL = 50 Ω, CL = 35 pF, See Figure 15 |
VCC = 1.8 V, TA = 25°C | 2 | 20 | 40 | ns | |
1.65 V ≤ VCC ≤ 1.95 V, –40°C ≤ TA ≤ 85°C | 1 | 50 | ||||||
QC | Charge injection | VGEN = 0, RGEN = 0, CL = 1 nF, See Figure 19 | 4 | pC | ||||
CNC(OFF), CNO(OFF) | NC and NO OFF capacitance | VNC or VNO = VCC or GND, Switch OFF, See Figure 13 | 50 | pF | ||||
CNC(ON), CNO(ON) | NC and NO ON capacitance | VNC or VNO = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CCOM(ON) | COM ON capacitance | VCOM = VCC or GND, Switch ON, See Figure 13 | 140 | pF | ||||
CI | Digital input capacitance | VIN = VCC or GND, See Figure 13 | 2 | pF | ||||
BW | Bandwidth | RL = 50 Ω, Switch ON, See Figure 16 | 48 | MHz | ||||
OISO | OFF isolation | RL = 50 Ω, f = 1 MHz, See Figure 17 | –73 | dB | ||||
XTALK | Crosstalk | RL = 50 Ω, f = 1 MHz, See Figure 18 | –72 | dB | ||||
THD | Total harmonic distortion | RL = 600 Ω, CL = 50 pF, f = 20 Hz to 20 kHz, See Figure 20 | 0.005% | |||||
Supply | ||||||||
ICC | Positive supply current | VIN = VCC or GND, VCC = 1.95 V | TA = 25°C | 10 | 100 | nA | ||
–40°C ≤ TA ≤ 85°C | 600 |
VCC = 1.65 V |
VCC = 2.7 V |
VCC = 2.3 V |
The TS3A24157 is a bidirectional, 2-channel, single-pole double-throw (SPDT) analog switch. This switch offers low ON-state resistance and excellent THD performance which makes it great for interfacing with an ADC.
The TS3A24157 is a bidirectional device that has two single-pole, double-throw switches. The two channels of the switch are controlled independently by two digital signals; one digital control for each single-pole, doublethrow switch.
To allow signals to pass between the NC and COM pins you must set the digital control IN pin Low
To allow signals to pass between the NO and COM pins you must set the digital control IN pin High
IN | NC TO COM, COM TO NC | NO TO COM, COM TO NO |
---|---|---|
L | ON | OFF |
H | OFF | ON |
NOTE
Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.
The switches are bidirectional, so the NO, NC, and COM pins can be used as either inputs or outputs.
The TS3A24157 can be properly operated without any external components.
When unused, pins COM, NC, and NO may be left floating.
Digital control pins IN must be pulled up to VCC or down to GND to avoid undesired switch positions that could result from the floating pin.
Ensure that all of the signals passing through the switch are within the ranges specified in Recommended Operating Conditions to ensure proper performance.
VCC = 2.7 V |
TI recommends proper power-supply sequencing for all CMOS devices. Do not exceed the absolute-maximum ratings, because stresses beyond the listed ratings can cause permanent damage to the device. Always sequence VCC on first, followed by NO, NC, or COM. Although it is not required, power-supply bypassing improves noise margin and prevents switching noise propagation from the VCC supply to other components. A 0.1-μF capacitor, connected from VCC to GND, is adequate for most applications
High-speed switches require proper layout and design procedures for optimum performance. Reduce stray inductance and capacitance by keeping traces short and wide. Ensure that bypass capacitors are placed as close to the device as possible. Use large ground planes where possible.
For related documentation see the following:
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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
SLYZ022 — TI Glossary.
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