Datasheet LT6660 (Analog Devices) - 10

LT6660
U U W U APPLICATIO S I FOR ATIO Output Accuracy
Total worst-case output error is: Like all references, either series or shunt, the error budget 0.2% + 0.04% + 0.14% = 0.380% of the LT6660s is made up of primarily three components: Table 2 gives the worst-case accuracy for LT6660HC, initial accuracy, temperature coefficient and load regulation. LT6660JC and LT6660KC from 0°C to 70°C, and shows Line regulation is neglected because it typical y contributes that if the LT6660HC is used as a reference instead of a only 150ppm/V. The LT6660s typically shift 0.02% when regulator, it is capable of 8 bits of absolute accuracy over soldered into a PCB, so this is also neglected. The output temperature without a system calibration. errors are calculated as follows for a 100µA load and 0°C to 70°C temperature range:
Table 2. Worst-Case Output Accuracy over Temperature
LT6660HCDC
IOUT LT6660HCDC LT6660JCDC LT6660KCDC
0µA 0.340% 0.540% 0.850% Initial Accuracy = 0.2% 100µA 0.380% 0.580% 0.890% For IOUT = 100µA 10mA 0.640% 0.840% 1.15% 20mA 0.540% 0.740% 1.05% ΔVOUT = (4000ppm/mA)(0.1mA) = 0.04% For Temperature 0°C to 70°C the maximum ΔT = 70°C ΔVOUT = (20ppm/°C)(70°C) = 0.14% 6660fa 10