Datasheet LT1057, LT1058 (Analog Devices) - 8

LT1057/LT1058
TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Rejection Ratio Common Mode Range Common Mode and Power Supply vs Frequency vs Temperature Rejections vs Temperature
120 15 120 VS = ±15V VS = ±10V TO ±17V FOR PSRR T 14 A = 25°C VS = ±15V, VCM = ±10.5V FOR CMRR 100 13 12 80 110 11 PSRR 60 ±10 CMRR (dB) –11 CMRR 40 –12 CMRR, PSRR (dB) 100 COMMON MODE RANGE (V) –13 20 –14 VS = ±15V 0 –15 90 10 100 1k 10k 100k 1M 10M –50 0 50 100 –25 25 75 125 FREQUENCY (Hz) TEMPERATURE (°C) TEMPERATURE (°C) 10578 G19 10578 G20 10578 G21
Power Supply Rejection Ratio Supply Current Short-Circuit Current vs Time vs Frequency vs Temperature (One Output Shorted to Ground)
140 3 50 T V A = 25°C S = ±15V 40 120 TA = –55°C 30 100 2 20 TA = 25°C 80 POSITIVE V 10 SUPPLY S = ±15V TA = 125°C 0 60 NEGATIVE VS = ±10V T SUPPLY –10 A = 125°C 1 TA = 25°C 40 –20 –30 20 SHORT-CIRCUIT CURRENT (mA) TA = –55°C POWER SUPPLY REJECTION RATIO (dB) SUPPLY CURRENT PER AMPLIFIER (mA) –40 0 0 –50 10 100 1k 10k 100k 1M 10M –50 –25 0 25 50 75 100 125 0 1 2 3 FREQUENCY (Hz) TEMPERATURE (°C) TIME FROM OUTPUT SHORT TO GROUND (MINUTES) 10578 G22 10578 G23 10578 G24
APPLICATIONS INFORMATION
The LT1057 may be inserted directly in LF353, LF412, with RS and RF in the kilohm range, this pole can create LF442, TL072, TL082 and OP-215 sockets. The LT1058 excess phase shift and even oscillation. A small capaci- plugs into LF347, LF444, TL074 and TL084 sockets. Of tor (CF) in parallel with RF eliminates this problem. With course, all standard dual and quad bipolar op amps can RS(CS + CIN) = RFCF, the effect of the feedback pole is also be replaced by these devices. completely removed. CF
High Speed Operation
RF When the feedback around the op amp is resistive (RF) – a pole will be created with RF, the source resistance and capacitance (R CIN OUTPUT S, CS), and the amplifier input capacitance RS CS (C + IN ≈ 4pF). In low closed loop gain configurations and 10578 F01 10578fd 8 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS