TS3A5017

14 W DUAL SP4T ANALOG SWITCH

3.3V/2.5V DUAL 4:1 ANALOG MULTIPLEXER/DEMULTIPLEXER

SCDS188 – JANUARY 2005

www.ti.com

10

PARAMETER DESCRIPTION

SYMBOL

DESCRIPTION

VD

Voltage at D

VS

Voltage at S

ron

Resistance between D and S ports when the channel is ON

∆ron

Difference of ron between channels in a specific device

ron(flat)

Difference between the maximum and minimum value of ron in a channel over the specified range of conditions

IS(OFF)

Leakage current measured at the S port, with the corresponding channel (S to D) in the OFF state

ISPWR(OFF)

Leakage current measured at the S port, under powered down mode, V+ = 0

IS(ON)

Leakage current measured at the S port, with the corresponding channel (S to D) in the ON state and the output (D) open

ID(OFF)

Leakage current measured at the D port, with the corresponding channel (D to S) in the OFF state

IDPWR(OFF)

Leakage current measured at the D port, under powered down mode, V+ = 0

ID(ON)

Leakage current measured at the D port, with the corresponding channel (D to S) in the ON state and the output (S) open

VIH

Minimum input voltage for logic high for the control input (IN, EN)

VIL

Maximum input voltage for logic low for the control input (IN, EN)

VI

Voltage at the control input (IN, EN)

IIH, IIL

Leakage current measured at the control input (IN, EN)

tON

Turn-on time for the switch. This parameter is measured under the specified range of conditions and by the propagation delay

between the digital control (IN) signal and analog output (D or S) signal when the switch is turning ON.

tOFF

Turn-off time for the switch. This parameter is measured under the specified range of conditions and by the propagation delay

between the digital control (IN) signal and analog output (D or S) signal when the switch is turning OFF.

QC

Charge injection is a measurement of unwanted signal coupling from the control (IN) input to the analog (S or D) output. This is

measured in coulomb (C) and measured by the total charge induced due to switching of the control input.

Charge injection, QC = CL × ∆VD, CL is the load capacitance, and ∆VD is the change in analog output voltage.

CS(OFF)

Capacitance at the S port when the corresponding channel (S to D) is OFF

CS(ON)

Capacitance at the S port when the corresponding channel (S to D) is ON

CD(OFF)

Capacitance at the D port when the corresponding channel (D to S) is OFF

CD(ON)

Capacitance at the D port when the corresponding channel (D to S) is ON

CI

Capacitance of control input (IN)

OISO

OFF isolation of the switch is a measurement of OFF-state switch impedance. This is measured in dB in a specific frequency,

with the corresponding channel (S to D) in the OFF state.

XTALK

Crosstalk is a measurement of unwanted signal coupling from an ON channel to an adjacent ON channel (1S1 to 2S1). This is

measured in a specific frequency and in dB.

BW

Bandwidth of the switch. This is the frequency in which the gain of an ON channel is −3 dB below the DC gain.

THD

Total harmonic distortion describes the signal distortion caused by the analog switch. This is defined as the ratio of root mean

square (RMS) value of the second, third, and higher harmonic to the absolute magnitude of the fundamental harmonic.

I+

Static power-supply current with the control (IN) pin at V+ or GND