Datasheet LT1970 (Analog Devices) - 3

LT1970
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. See Test Circuit for standard test conditions. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
RIN Input Resistance Common Mode 500 kΩ Differential Mode 100 kΩ CIN Input Capacitance Pin 8 and Pin 9 to Ground 6 pF VCM Input Voltage Range Typical –14.5 13.6 V Guaranteed by CMRR Test l –12.0 12.0 V CMRR Common Mode Rejection Ratio –12V < VCM < 12V l 92 105 dB PSRR Power Supply Rejection Ratio VEE = V– = –5V, VCC = V+ = 3V to 30V l 90 100 dB VEE = V– = –5V, VCC = 30V, V+ = 2.5V to 30V l 110 130 dB VEE = V– = –3V to –30V, VCC = V+ = 5V l 90 100 dB V 110 130 dB EE = –30V, V– = –2.5V to –30V, VCC = V+ = 5V l AVOL Large-Signal Voltage Gain RL = 1k, –12.5V < VOUT < 12.5V 100 150 V/mV l 75 V/mV RL = 100Ω, –12.5V < VOUT < 12.5V 80 120 V/mV l 40 V/mV RL = 10Ω, –5V < VOUT < 5V, V+ = –V– = 8V 20 45 V/mV l 5 V/mV VOL Output Sat Voltage Low VOL = VOUT – V– RL = 100, VCC = V+ = 15V, VEE = V– = –15V l 1.9 2.5 V RL = 10, VCC = –VEE = 15V, V+ = –V– = 5V 0.8 V VOH Output Sat Voltage High VOH = V+ – VOUT RL = 100, VCC = V+ = 15V, VEE = V– = –15V l 1.7 2.3 V RL = 10, VCC = –VEE = 15V, V+ = –V– = 5V 1.0 V ISC Output Short-Circuit Current Output Low, RSENSE = 0Ω 500 800 1200 mA Output High, RSENSE = 0Ω –1000 –800 –500 mA SR Slew Rate –10V < VOUT < 10V, RL = 1k 0.7 1.6 V/µs FPBW Full Power Bandwidth VOUT = 10VPEAK (Note 5) 11 kHz GBW Gain Bandwidth Product f = 10kHz 3.6 MHz tS Settling Time 0.01%, VOUT = 0V to 10V, AV = –1, RL = 1k 8 µs
Current Sense Characteristics
VSENSE(MIN) Minimum Current Sense Voltage VCSRC = VCSNK = 0V 0.1 4 7 mV l 0.1 10 mV VSENSE(4%) Current Sense Voltage 4% of Full Scale VCSRC = VCSNK = 0.2V l 15 20 25 mV VSENSE(10%) Current Sense Voltage 10% of Full Scale VCSRC = VCSNK = 0.5V l 45 50 55 mV VSENSE(FS) Current Sense Voltage 100% of Full Scale VCSRC = VCSNK = 5V 490 500 510 mV l 480 500 520 mV IBI Current Limit Control Input Bias Current VCSRC, VCSNK Pins l –1 –0.2 0.1 µA ISENSE– SENSE– Input Current 0V < (VCSRC, VCSNK) < 5V l –500 500 nA IFILTER FILTER Input Current 0V < (VCSRC, VCSNK) < 5V l –500 500 nA ISENSE+ SENSE+ Input Current VCSRC= VCSNK = 0V l –500 500 nA VCSRC = 5V, VCSNK = 0V l 200 250 300 nA VCSRC= 0V, VCSNK = 5V l –300 –250 –200 nA VCSRC = VCSNK = 5V l –25 25 nA Current Sense Change with Output Voltage VCSRC = VCSNK = 5V, –12.5V < VOUT < 12.5V ±0.1 % Current Sense Change with Supply Voltage VCSRC = VCSNK = 5V, 6V < (VCC, V+) < 18V ±0.05 % 2.5V < V+ < 18V, VCC = 18V ±0.01 % –18V < (VEE, V–) < –2.5V ±0.05 % –18V < V– < –2.5V, VEE = –18V ±0.01 % 1970fe For more information www.linear.com/LT1970 3 Document Outline Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Related Parts