LT1228CS8 datasheet(4/20 Pages) LINER

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LT1228

1228fc

Input Bias Current

TA = 25°C

0.4

µA

●

µA

Input Noise Voltage Density

f = 1kHz

nV/

√Hz

RIN

Input Resistance-Differential Mode

VIN ≈ ±30mV

●

200

Ω

Input Resistance-Common Mode

VS = ±15V, VCM = ±12V

●

1000

Ω

VS = ±5V, VCM = ±2V

●

1000

Ω

CIN

Input Capacitance

3pF

Input Voltage Range

VS = ±15V, TA = 25°C

±13

±14

VS = ±15V

●

±12

VS = ±5V, TA = 25°C

±3

±4V

VS = ±5V

●

±2V

CMRR

Common Mode Rejection Ratio

VS = ±15V, VCM = ±13V, TA = 25°C

100

VS = ±15V, VCM = ±12V

●

VS = ±5V, VCM = ±3V, TA = 25°C

100

VS = ±5V, VCM = ±2V

●

PSRR

Power Supply Rejection Ratio

VS = ±2V to ±15V, TA = 25°C

100

VS = ±3V to ±15V

●

Transconductance

ISET = 100µA, IOUT = ±30µA, TA = 25°C

0.75

1.00

1.25

µA/mV

Transconductance Drift

●

– 0.33

°C

IOUT

Maximum Output Current

ISET = 100µA

●

100

130

µA

IOL

Output Leakage Current

ISET = 0µA (+IIN of CFA), TA = 25°C

0.3

µA

●

µA

VOUT

Maximum Output Voltage Swing

VS = ±15V , R1 = ∞

● ±13

±14

VS = ±5V , R1 = ∞

● ±3

±4V

Output Resistance

VS = ±15V, VOUT = ±13V

●

Ω

VS = ±5V, VOUT = ±3V

●

Ω

Output Capacitance (Note 3)

VS = ±5V

Supply Current, Both Amps

ISET = 1mA

●

915

THD

Total Harmonic Distortion

VIN = 30mVRMS at 1kHz, R1 = 100k

0.2

Small-Signal Bandwidth

R1 = 50

Ω,ISET = 500µA

MHz

Small-Signal Rise Time

R1 = 50

Ω,ISET = 500µA, 10% to 90%

Propagation Delay

R1 = 50

Ω,ISET = 500µA, 50% to 50%

ELECTRICAL C

HARA TERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

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

voltage.

Note 3: This is the total capacitance at Pin 1. It includes the input

capacitance of the current feedback amplifier and the output capacitance

of the transconductance amplifier.

Note 4: Slew rate is measured at

±5V on a ±10V output signal while

operating on

±15V supplies with RF = 1k, RG = 110Ω and RL = 400Ω. The

slew rate is much higher when the input is overdriven, see the applications

section.

Note 5: Rise time is measured from 10% to 90% on a

±500mV output

signal while operating on

±15V supplies with RF = 1k, RG = 110Ω and

RL = 100Ω. This condition is not the fastest possible, however, it does

guarantee the internal capacitances are correct and it makes automatic

testing practical.

Note 6: AC parameters are 100% tested on the ceramic and plastic DIP

packaged parts (J and N suffix) and are sample tested on every lot of

the SO packaged parts (S suffix).

Note 7: NTSC composite video with an output level of 2V.

Note 8: Back to back 6V Zener diodes are connected between Pins 2

and 3 for ESD protection.

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. Transconductance Amplifier, Pins 1, 2, 3, 5. ±5V ≤ VS ≤ ±15V, ISET =

100

µA, VCM = 0V unless otherwise noted.

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