Datasheet LT1228 (Analog Devices) - 4

LT1228
ELECTRICAL CHARACTERISTICS The
l
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 = 100µA, VCM = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage ISET = 1mA, TA = 25°C ±0.5 ±5 mV l ±10 mV Input Offset Voltage Drift l 10 µV/°C IOS Input Offset Current TA = 25°C 40 200 nA l 500 nA IB Input Bias Current TA = 25°C 0.4 1 µA l 5 µA en Input Noise Voltage Density f = 1kHz 20 nV/√Hz RIN Input Resistance-Differential Mode VIN ≈ ±30mV l 30 200 kΩ Input Resistance-Common Mode VS = ±15V, VCM = ±12V l 50 1000 MΩ VS = ±5V, VCM = ±2V l 50 1000 MΩ CIN Input Capacitance 3 pF Input Voltage Range VS = ±15V, TA = 25°C ±13 ±14 V VS = ±15V l ±12 V VS = ±5V, TA = 25°C ±3 ±4 V VS = ±5V l ±2 V CMRR Common Mode Rejection Ratio VS = ±15V, VCM = ±13V, TA = 25°C 60 100 dB VS = ±15V, VCM = ±12V l 60 dB VS = ±5V, VCM = ±3V, TA = 25°C 60 100 dB VS = ±5V, VCM = ±2V l 60 dB PSRR Power Supply Rejection Ratio VS = ±2V to ±15V, TA = 25°C 60 100 dB VS = ±3V to ±15V l 60 dB gm Transconductance ISET = 100µA, IOUT = ±30µA, TA = 25°C 0.75 1.00 1.25 µA/mV Transconductance Drift l –0.33 %/°C IOUT Maximum Output Current ISET = 100µA l 70 100 130 µA IOL Output Leakage Current ISET = 0µA (+IIN of CFA), TA = 25°C 0.3 3 µA l 10 µA VOUT Maximum Output Voltage Swing VS = ±15V , R1 = ∞ l ±13 ±14 V VS = ±5V , R1 = ∞ l ±3 ±4 V RO Output Resistance VS = ±15V, VOUT = ±13V l 2 8 MΩ VS = ±5V, VOUT = ±3V l 2 8 MΩ Output Capacitance (Note 3) VS = ±5V 6 pF IS Supply Current, Both Amps ISET = 1mA l 9 15 mA THD Total Harmonic Distortion VIN = 30mVRMS at 1kHz, R1 = 100k 0.2 % BW Small-Signal Bandwidth R1 = 50Ω, ISET = 500µA 80 MHz tr Small-Signal Rise Time R1 = 50Ω, ISET = 500µA, 10% to 90% 5 ns Propagation Delay R1 = 50Ω, ISET = 500µA, 50% to 50% 5 ns
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
Rise time is measured from 10% to 90% on a ±500mV output signal may cause permanent damage to the device. Exposure to any Absolute while operating on ±15V supplies with RF = 1k, RG = 110Ω and RL = 100Ω. Maximum Rating condition for extended periods may affect device This condition is not the fastest possible, however, it does guarantee the reliability and lifetime. internal capacitances are correct and it makes automatic testing practical.
Note 2:
A heat sink may be required depending on the power supply voltage.
Note 6:
AC parameters are 100% tested on the ceramic and plastic DIP
Note 3:
This is the total capacitance at Pin 1. It includes the input capacitance packaged parts (J and N suffix) and are sample tested on every lot of the SO of the current feedback amplifier and the output capacitance of the packaged parts (S suffix). transconductance amplifier.
Note 7:
NTSC composite video with an output level of 2V.
Note 4:
Slew rate is measured at ±5V on a ±10V output signal while operating
Note 8:
Back to back 6V Zener diodes are connected between Pins 2 and 3 on ±15V supplies with RF = 1k, RG = 110Ω and RL = 400Ω. The slew rate is for ESD protection. much higher when the input is overdriven, see the Applications Information section. 1228fd 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Simplified Schematic Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts