Datasheet LTC6246, LTC6247, LTC6248 (Analog Devices) - 7

制造商Analog Devices
描述180MHz, 1mA Power Efficient Rail-to-Rail I/O Op Amps
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ELECTRICAL CHARACTERISTICS. (VS = 2.7V) The. denotes the specifications which apply across the

ELECTRICAL CHARACTERISTICS (VS = 2.7V) The denotes the specifications which apply across the

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LTC6246/LTC6247/LTC6248
ELECTRICAL CHARACTERISTICS (VS = 2.7V) The
l
denotes the specifications which apply across the specified temperature range, otherwise specifications are at TA = 25°C. For each amplifier VS = 2.7V, 0V; VSHDN = 2V; VCM = VOUT = 1.35V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
ISD Disable Supply Current per Amplifier VSHDN = 0.8V 22 50 µA l 90 µA ISHDNL SHDN Pin Current Low VSHDN = 0.8V –1 –0.5 0 µA l –1.5 0 µA ISHDNH SHDN Pin Current High VSHDN = 2V –300 45 300 nA l –350 350 nA VL SHDN Pin Input Voltage l 0.8 V VH SHDN Pin Input Voltage l 2.0 V IOSD Output Leakage Current Magnitude in Shutdown VSHDN = 0.8V, Output Shorted to Either 100 nA Supply tON Turn-On Time VSHDN = 0.8V to 2V 5 µs tOFF Turn-Off Time VSHDN = 2V to 0.8V 2 µs BW –3dB Closed Loop Bandwidth AV = 1, RL = 1k to Half Supply 100 MHz GBW Gain-Bandwidth Product f = 2MHz, RL = 1k to Half Supply 80 150 MHz l 50 tS, 0.1 Settling Time to 0.1% AV = –1, VO = 2V Step RL = 1k 119 ns tS, 0.01 Settling Time to 0.01% AV = –1, VO = 2V Step RL = 1k 170 ns SR Slew Rate AV = –1, 2V Step 55 V/µs FPBW Full Power Bandwidth VOUT = 2VP-P (Note 13) 3.3 MHz Crosstalk AV = –1, RL = 1k to Half Supply, –90 dB VOUT = 2VP-P, f = 1MHz
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
Minimum supply voltage is guaranteed by power supply rejection may cause permanent damage to the device. Exposure to any Absolute ratio test. Maximum Rating condition for extended periods may affect device
Note 7:
The input bias current is the average of the average of the currents reliability and lifetime. through the positive and negative input pins.
Note 2:
The inputs are protected by back-to-back diodes. If any of
Note 8:
Matching parameters are the difference between amplifiers A and the input or shutdown pins goes 300mV beyond either supply or the D and between B and C on the LTC6248; between the two amplifiers on the differential input voltage exceeds 1.4V the input current should be limited LTC6247. to less than 10mA. This parameter is guaranteed to meet specified
Note 9:
Thermal resistance varies with the amount of PC board metal performance through design and/or characterization. It is not production connected to the package. The specified values are with short traces tested. connected to the leads with minimal metal area.
Note 3:
A heat sink may be required to keep the junction temperature
Note 10:
The output voltage is varied from 0.5V to 4.5V during below the absolute maximum rating when the output current is high. measurement.
Note 4:
The LTC6246C/LTC6247C/LTC6248C and LTC6246I/LTC6247I/
Note 11:
Middle 80% of the output waveform is observed. R LTC6248I are guaranteed functional over the temperature range of –40°C L = 1k at half supply. to 85°C. The LTC6246H/LTC6247H/LTC6248H are guaranteed functional over the temperature range of –40°C to 125°C.
Note 12:
The output voltage is varied from 0.5V to 2.2V during measurement.
Note 5:
The LTC6246C/LTC6247C/LTC6248C are guaranteed to meet specified performance from 0°C to 70°C. The LTC6246C/LTC6247C/
Note 13:
FPBW is determined from distortion performance in a gain of +2 LTC6248C are designed, characterized and expected to meet specified configuration with HD2, HD3 < –40dBc as the criteria for a valid output. performance from –40°C to 85°C but are not tested or QA sampled at
Note 14:
Differential gain and phase are measured using a Tektronix these temperatures. The LTC6246I/LTC6247I/LTC6248I are guaranteed TSG120YC/NTSC signal generator and a Tektronix 1780R video to meet specified performance from –40°C to 85°C. The LTC6246H/ measurement set. LTC6247H/LTC6248H are guaranteed to meet specified performance from –40°C to 125°C. Rev C For more information www.analog.com 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Revision History Typical Application Related Parts