LT1204CSW datasheet(4/20 Pages) LINER

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LT1204

AC CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

tr, tf

Small-Signal Rise and Fall Time

RL = 150Ω, VOUT = ±125mV

5.6

Slew Rate (Note 10)

RL = 400Ω

400

1000

µs

Channel Select Output Transient

All VIN = 0V, RL = 400Ω, Input Referred

Settling Time

0.1%, VOUT = 10V, RL = 1k

All Hostile Crosstalk (Note 11)

SO PCB #028, RL = 100Ω, RS = 10Ω

Disable Crosstalk (Note 11)

SO PCB #028, Pin 11 Voltage = 0V, RL = 100Ω, RS = 50Ω

Shutdown Crosstalk (Note 11)

SO PCB #028, Pin 12 Voltage = 0V, RL = 100Ω, RS = 50Ω

All Hostile Crosstalk (Note 11)

PDIP PCB #029, RL = 100Ω, RS = 10Ω

Disable Crosstalk (Note 11)

PDIP PCB #029, Pin 11 Voltage = 0V, RL = 100Ω, RS = 50Ω

Shutdown Crosstalk (Note 11)

PDIP PCB #029, Pin 12 Voltage = 0V, RL = 100Ω, RS = 50Ω

Differential Gain (Note 12)

VS = ±15V, RL = 150Ω

0.04

VS = ±5V, RL = 150Ω

0.04

Differential Phase (Note 12)

VS = ±15V, RL = 150Ω

0.06

DEG

VS = ±5V, RL = 150Ω

0.12

DEG

TA = 25°C, VS = ±15V, RF = RG = 1k, unless otherwise noted.

The q denotes specifications which apply over the specified operating

temperature range.

Note 1: Analog and digital inputs (Pins 1, 3, 5, 7, 9, 10, 11 and 12) are

protected against ESD and overvoltage with internal SCRs. For inputs

±6V the SCR will not fire, voltages above 6V will fire the SCRs and

the DC current should be limited to 50mA. To turn off the SCR the pin

voltage must be reduced to less than 2V or the current reduced to less

than 10mA.

Note 2: A heat sink may be required depending on the power supply

voltage.

Note 3: Commercial grade parts are designed to operate over the

temperature range of – 40

°C to 85°C but are neither tested nor

guaranteed beyond 0

°C to 70°C. Industrial grade parts specified and

tested over – 40

°C to 85°C are available on special request. Consult

factory.

Note 4: TJ is calculated from the ambient temperature TA and power

dissipation PD according to the following formulas:

LT1204CN: TJ = TA + (PD)(70°C/W)

LT1204CS: TJ = TA + (PD)(90°C/W)

Note 5: The supply current of the LT1204 has a negative temperature

coefficient. For more information see Typical Performance

Characteristics.

Note 6: Apply 0.5V DC to Pin 1 and measure the time for the

appearance of 5V at Pin 15 when Pin 9 goes from 5V to 0V. Pin 10

Voltage = 0V. Apply 0.5V DC to Pin 3 and measure the time for the

appearance of 5V at Pin 15 when Pin 9 goes from 0V to 5V. Pin 10

Voltage = 0V. Apply 0.5V DC to Pin 5 and measure the time for the

appearance of 5V at Pin 15 when Pin 9 goes from 5V to 0V. Pin 10

Voltage = 5V. Apply 0.5V DC to Pin 7 and measure the time for the

appearance of 5V at Pin 15 when Pin 9 goes from 0V to 5V. Pin 10

Voltage = 5V.

Note 7: Apply 0.5V DC to Pin 1 and measure the time for the

disappearance of 5V at Pin 15 when Pin 11 goes from 5V to 0V.

Pins 9 and 10 are at 0V.

Note 8: Apply 0.5V DC to Pin 1 and measure the time for the

appearance of 5V at Pin 15 when Pin 11 goes from 0V to 5V.

Pins 9 and 10 are at 0V. Above a 1MHz toggle rate, ten reduces.

Note 9: Apply 0.5V DC at Pin 1 and measure the time for the

appearance of 5V at Pin 15 when Pin 12 goes from 0V to 5V.

Pins 9 and 10 are at 0V. Then measure the time for the disappearance

of 5V DC to 500mV at Pin 15 when Pin 12 goes from 5V to 0V.

Note 10: Slew rate is measured at

±5V on a ±10V output signal while

operating on

±15V supplies with RF = 2k, RG = 220Ω and RL = 400Ω.

Note 11: VIN = 0dBm (0.223VRMS) at 10MHz on any 3 inputs with the

4th input selected. For Disable crosstalk and Shutdown crosstalk all 4

inputs are driven simultaneously. A 6dB output attenuator is formed by

a 50

Ω series output resistor and the 50Ω input impedance of the

HP4195A Network Analyzer. RF = RG = 1k.

Note 12: Differential Gain and Phase are measured using a Tektronix

TSG120 YC/NTSC signal generator and a Tektronix 1780R Video

Measurement Set. The resolution of this equipment is 0.1% and 0.1

°.

Five identical MUXs were cascaded giving an effective resolution of

0.02% and 0.02

°.

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