Datasheet LT1970A (Analog Devices) - 3

LT1970A
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
en Input Noise Voltage Density 1kHz 15 nV/√Hz in Input Noise Current Density 1kHz 3 pA/√Hz 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 495 500 505 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 µA VCSRC= 0V, VCSNK = 5V l –300 –250 –200 µA VCSRC = VCSNK = 5V l –25 25 µA 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 % 1970afc For more information www.linear.com/LT1970A 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram And Test Circuit Applications Information Package Description Applications Information Related Parts