Datasheet LT6604-2.5 (Analog Devices) - 4

LT6604-2.5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. Unless otherwise specifi ed VS = 5V (V+ = 5V, V– = 0V), RIN = 1580Ω, and RLOAD = 1k. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Bias Current Average of IN+ and IN– l –35 –15 μA Input Referred Differential Offset RIN = 1580Ω, Differential Gain = 1V/V VS = 3V l 5 25 mV VS = 5V l 5 30 mV VS = ±5V l 5 35 mV RIN = 402Ω, Differential Gain = 4V/V VS = 3V l 3 13 mV VS = 5V l 3 16 mV VS = ±5V l 3 20 mV Differential Offset Drift 10 μV/°C Input Common Mode Voltage (Note 3) Differential Input = 500mVP-P, RIN ≥402Ω VS = 3V l 0 1.5 V VS = 5V l 0 3 V VS = ±5V l –2.5 1 V Output Common Mode Voltage (Note 5) Differential Output = 2VP-P, VMID = Open VS = 3V l 1 1.5 V VS = 5V l 1.5 3 V VS = ±5V l – 1 2 V Output Common Mode Offset VS = 3V l –25 10 45 mV (with Respect to VOCM) VS = 5V l –30 5 45 mV VS = ±5V l –55 –10 35 mV Common Mode Rejection Ratio 63 dB Voltage at VMID VS = 5V l 2.45 2.51 2.56 V VS = 3V 1.5 V VMID Input Resistance l 4.3 5.7 7.7 kΩ VOCM Bias Current VOCM = VMID = VS/2 VS = 5V l –15 –3 μA VS = 3V l –10 –3 μA Power Supply Current VS = 3V, VS = 5V 26 30 mA (Per Channel) VS = 3V, VS = 5V l 33 mA VS = ±5V l 28 36 mA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 7:
The LT6604C-2.5 is guaranteed to meet 0°C to 70°C specifi cations may cause permanent damage to the device. Exposure to any Absolute and is designed, characterized and expected to meet the extended Maximum Rating condition for extended periods may affect device temperature limits, but is not tested at –40°C to 85°C. The LT6604I-2.5 is reliability and lifetime. guaranteed to meet specifi ed performance from –40°C to 85°C.
Note 2:
This is the temperature coeffi cient of the internal feedback
Note 8:
Input pins (+IN, –IN, VOCM and VMID) are protected by steering resistors assuming a temperature independent external resistor (RIN). diodes to either supply. If the inputs should exceed either supply voltage,
Note 3:
The input common mode voltage is the average of the voltages the input current should be limited to less than 10mA. In addition, the applied to the external resistors (R inputs +IN, –IN are protected by a pair of back-to-back diodes. If the IN). differential input voltage exceeds 1.4V, the input current should be limited
Note 4:
Distortion is measured differentially using a differential stimulus. to less than 10mA The input common mode voltage, the voltage at VOCM, and the voltage at V
Note 9:
Channel separation (the inverse of crosstalk) is measured by MID are equal to one half of the total power supply voltage. driving a signal into one input while terminating the other input. Channel
Note 5:
Output common mode voltage is the average of the +OUT and separation is the ratio of the resulting output signal at the driven channel –OUT voltages. The output common mode voltage is equal to VOCM. to the output at the channel that is not driven.
Note 6:
The LT6604C-2.5 is guaranteed functional over the operating temperature range –40°C to 85°C. 660425fa 4