11A16

The Tektronix 11A16 is a dual-channel 120 MHz current amplifier for 11300-series, 11400-series, DSA-series, and some CSA-series mainframes, depending on the version of the firmware.

Manuals – Specifications – Links – Pictures

Each channel has a 12-pin input connector that fits the A6302 probe (10.5 A continuous) or A6303 probe (52.5 A continuous).

The current probe input is an Amphenol 165-12 connector. It contains pins for hall element and transformer connections, lock detection, probe degaussing, and probe type encoding. The AM503, AM5030 and 11A16 use the same connector. The 11A16 detects the current probe type and scales the display appropriately.

The 11A16 uses one M377 amplifier chip per channel, U220 and U260.

The 11A16 was designed by Roy Kaufman.

Key Specifications

	— With A6302 probe —
Bandwidth	50 MHz
Deflection	1 mA/Div to 2 A/Div, 1–2–5
Noise	0.3 Div @ 1 mA/Div, 0.2 Div @ 2 mA/Div, 0.1 Div @ 5 mA/Div, 0.05 Div above
	— With A6303 probe —
Bandwidth	15 MHz
Deflection	5 mA/Div to 10 A/Div, 1–2–5
Noise	0.3 Div @ 5 mA/Div, 0.2 Div @ 10 mA/Div, 0.1 Div @ 25 mA/Div, 0.05 Div above

Links

• 11A-series plug-in NVRAM replacement
• https://www.tek.com/datasheet/current-measurement-system-probes
• 015-0598-00 calibration fixture

Pictures

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  11A16 with A6302 current probe in 11301 displaying cal signal

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  Left internal view

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  Right internal view

Components