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Keithley 616: Difference between revisions
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''please expand description'' | ''please expand description'' | ||
{{ | {{BeginSpecs}} | ||
{{Spec | Voltage ranges | ±10 mV to ±100 V in decade ranges}} | |||
{{Spec | Voltmeter input | > 2×10<sup>14</sup> Ω // 20 pF }} | |||
{{Spec | Current ranges | ±10<sup>-13</sup> A to ±100 mA in 13 decade ranges }} | |||
{{Spec | Resistance ranges | 1 kΩ to 10<sup>14</sup> Ω FS in 12 decade ranges }} | |||
{{Spec | Charge ranges | ±10<sup>-12</sup> C to ±10<sup>-5</sup> C in 8 decade ranges }} | |||
{{Spec | Resolution | 3½ digits (1999 counts); all nominal ranges have overrange capability to 1.999× }} | |||
{{Spec | Connections | | |||
* Input: 2-lug [[triaxial connector]] | |||
* Output: Unity gain output, 4 mm binding posts (equal to input voltage within 20 ppm for output currents of 1 mA or less | |||
* Internal BCD outputs for 6162 Isolated Output }} | |||
{{Spec | Power | 90-125 or 180-250 V<sub>AC</sub>, 50-60 Hz, 9 W }} | |||
{{Spec | Options | | |||
* Model 6162 Isolated Output/Control provides isolated BCD outputs, remote controls, and remote programming lines | |||
}} | |||
{{EndSpecs}} | |||
==Links== | |||
* [https://www.eevblog.com/forum/testgear/keithley-616-teardown/ Keithley 616 Teardown thread @ EEVBlog Forum] (nice internal photos, mention of replacing the Fairchild SL35155 chip with an [[Motorola 6800|68HC11 microcontroller]]) | |||
* Keithley 616 input stage replacement with MOSFET opamp: [https://www.eevblog.com/forum/repair/keithley-616-electrometer-input-stage-replacement/ Thread @ EEVBlog Forum] / [https://github.com/faeboli/Keithley_616 Github] | |||
==Pictures== | ==Pictures== | ||