Lines Matching +full:boost +full:- +full:mode
1 .. SPDX-License-Identifier: GPL-2.0-only
23 * `AD7380-4 <https://www.analog.com/en/products/ad7380-4.html>`_
24 * `AD7381-4 <https://www.analog.com/en/products/ad7381-4.html>`_
25 * `AD7383-4 <https://www.analog.com/en/products/ad7383-4.html>`_
26 * `AD7384-4 <https://www.analog.com/en/products/ad7384-4.html>`_
27 * `AD7386-4 <https://www.analog.com/en/products/ad7386-4.html>`_
28 * `AD7387-4 <https://www.analog.com/en/products/ad7387-4.html>`_
29 * `AD7388-4 <https://www.analog.com/en/products/ad7388-4.html>`_
30 * `ADAQ4370-4 <https://www.analog.com/en/products/adaq4370-4.html>`_
31 * `ADAQ4380-4 <https://www.analog.com/en/products/adaq4380-4.html>`_
38 ----------------
44 -----------------
46 ad7380-4
49 ad7380-4 supports only an external reference voltage (2.5V to 3.3V). It must be
50 declared in the device tree as ``refin-supply``.
55 adaq4370-4 and adaq4380-4 don't have an external reference, but use a 3.3V
56 internal reference derived from one of its supplies (``refin-supply``)
63 - Internal reference (2.5V)
64 - External reference (2.5V to 3.3V)
66 The source is determined by the device tree. If ``refio-supply`` is present,
69 Oversampling and resolution boost
70 ---------------------------------
77 When the on-chip oversampling function is enabled the performance of the ADC can
78 exceed the default resolution. To accommodate the performance boost achievable,
80 resolution boost feature can only be enabled when oversampling is enabled and
81 oversampling is not as useful without the resolution boost, the driver
82 automatically enables the resolution boost if and only if oversampling is
85 Since the resolution boost feature causes 16-bit chips to now have 18-bit data
91 .. code-block:: bash
95 Channel selection and sequencer (single-end chips only)
96 -------------------------------------------------------
98 Single-ended chips of this family (ad7386/7/8(-4)) have a 2:1 multiplexer in
100 allow for either manual selection or automatic switching (sequencer mode), of
104 export 4 channels and ad7386-4/7-4/8-4 export 8 channels.
107 0-1 or 0-3) and inputs ``AinX1`` correspond to second half (i.e 2-3 or 4-7).
110 .. code-block::
113 | +----------------------------
116 voltage0 | AinA0 --|--->| | | |
117 | | | mux |----->| ADCA |---
118 voltage2 | AinA1 --|--->| | | |
122 voltage1 | AinB0 --|--->| | | |
123 | | | mux |----->| ADCB |---
124 voltage3 | AinB1 --|--->| | | |
127 | +----------------------------
130 When enabling sequencer mode, the effective sampling rate is divided by two.
136 gain is selectable from device tree using the ``adi,gain-milli`` property.
141 ----------------------
143 - 2/4 SDO lines
144 - Rolling average oversampling
145 - Power down mode
146 - CRC indication
147 - Alert