satip-axe/kernel/Documentation/hwmon/ads7828
2015-03-26 17:24:57 +01:00

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Kernel driver ads7828
=====================
Supported chips:
* Texas Instruments/Burr-Brown ADS7828
Prefix: 'ads7828'
Addresses scanned: I2C 0x48, 0x49, 0x4a, 0x4b
Datasheet: Publicly available at the Texas Instruments website :
http://focus.ti.com/lit/ds/symlink/ads7828.pdf
Authors:
Steve Hardy <steve@linuxrealtime.co.uk>
Module Parameters
-----------------
* se_input: bool (default Y)
Single ended operation - set to N for differential mode
* int_vref: bool (default Y)
Operate with the internal 2.5V reference - set to N for external reference
* vref_mv: int (default 2500)
If using an external reference, set this to the reference voltage in mV
Description
-----------
This driver implements support for the Texas Instruments ADS7828.
This device is a 12-bit 8-channel A-D converter.
It can operate in single ended mode (8 +ve inputs) or in differential mode,
where 4 differential pairs can be measured.
The chip also has the facility to use an external voltage reference. This
may be required if your hardware supplies the ADS7828 from a 5V supply, see
the datasheet for more details.