Datasheet LT1460 (Analog Devices) - 7

LT1460 electrical characteristics
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT + 2.5V, IOUT = 0 unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage Noise (Note 7) LT1460-2.5 0.1Hz ≤ f ≤ 10Hz 10 µVP-P LT1460A, LT1460B, LT1460C, LT1460D, LT1460E, 10Hz ≤ f ≤ 1kHz 10 µVRMS LT1460F, LT1460G, LT1460H, LT1460L, LT1460M LT1460-5 0.1Hz ≤ f ≤ 10Hz 20 µVP-P 10Hz ≤ f ≤ 1kHz 20 µVRMS LT1460-10 0.1Hz ≤ f ≤ 10Hz 40 µVP-P 10Hz ≤ f ≤ 1kHz 35 µVRMS LT1460HC, LT1460JC, LT1460KC 0.1Hz ≤ f ≤ 10Hz 4 ppm (P-P) 10Hz ≤ f ≤ 1kHz 4 ppm (RMS) Long-Term Stability of Output Voltage (Note 8) 40 ppm/√kHr S8 Pkg LT1460HC, LT1460JC, LT1460KC 100 ppm/√kHr Hysteresis (Note 9) ΔT = 0°C to 70°C 25 ppm LT1460A, LT1460B, LT1460C, LT1460D, LT1460E, ΔT = –40°C to 85°C 160 ppm LT1460F, LT1460G, LT1460H, LT1460L, LT1460M LT1460HC, LT1460JC, LT1460KC ΔT = 0°C to 70°C l 50 ppm ΔT = –40°C to 85°C l 250 ppm
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings and then integrated for a fixed period, making the final reading an average may cause permanent damage to the device. Exposure to any Absolute as opposed to RMS. A correction factor of 1.1 is used to convert from Maximum Rating condition for extended periods may affect device average to RMS and a second correction of 0.88 is used to correct for the reliability and lifetime. nonideal pass band of the filters.
Note 2:
If the part is stored outside of the specified temperature range, the
Note 8:
Long-term stability typically has a logarithmic characteristic and output may shift due to hysteresis. therefore, changes after 1000 hours tend to be much smaller than before
Note 3:
Temperature coefficient is measured by dividing the change in that time. Total drift in the second thousand hours is normally less than output voltage by the specified temperature range. Incremental slope is one third that of the first thousand hours with a continuing trend toward also measured at 25°C. reduced drift with time. Significant improvement in long-term drift can
Note 4:
Load regulation is measured on a pulse basis from no load to the be realized by preconditioning the IC with a 100 hour to 200 hour, 125°C specified load current. Output changes due to die temperature change burn-in. Long-term stability will also be affected by differential stresses must be taken into account separately. between the IC and the board material created during board assembly. See PC Board Layout in the Applications Information section.
Note 5:
Thermal regulation is caused by die temperature gradients created by load current or input voltage changes. This effect must be added to
Note 9:
Hysteresis in output voltage is created by package stress that normal line or load regulation. This parameter is not 100% tested. differs depending on whether the IC was previously at a higher or lower temperature. Output voltage is always measured at 25°C, but the IC is
Note 6:
Excludes load regulation errors. For LT1460S3, ΔVOUT ≤ 0.2%. For cycled to 85°C or –40°C before successive measurements. Hysteresis all other packages, ΔVOUT ≤ 0.1%. is roughly proportional to the square of the temperature change. For
Note 7:
Peak-to-peak noise is measured with a single highpass filter at instruments that are stored at reasonably well-controlled temperatures 0.1Hz and 2-pole lowpass filter at 10Hz. The unit is enclosed in a still-air (within 20 or 30 degrees of operating temperature) hysteresis is generally environment to eliminate thermocouple effects on the leads. The test time not a problem. is 10 sec. RMS noise is measured with a single highpass filter at 10Hz and
Note 10:
The LT1460S3 is guaranteed functional over the operating a 2-pole lowpass filter at 1kHz. The resulting output is full wave rectified temperature range of –40° to 85°C. 1460fc Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Available Options Electrical Characteristics Typical Performance Characteristics Applications Information Simplified Schematic Package Description Revision History Typical Applications Related Parts