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Steve Hardy5812f922008-01-22 23:00:02 +00001Kernel driver ads7828
2=====================
3
4Supported chips:
5 * Texas Instruments/Burr-Brown ADS7828
6 Prefix: 'ads7828'
7 Addresses scanned: I2C 0x48, 0x49, 0x4a, 0x4b
8 Datasheet: Publicly available at the Texas Instruments website :
9 http://focus.ti.com/lit/ds/symlink/ads7828.pdf
10
11Authors:
12 Steve Hardy <steve@linuxrealtime.co.uk>
13
14Module Parameters
15-----------------
16
17* se_input: bool (default Y)
18 Single ended operation - set to N for differential mode
19* int_vref: bool (default Y)
20 Operate with the internal 2.5V reference - set to N for external reference
21* vref_mv: int (default 2500)
22 If using an external reference, set this to the reference voltage in mV
23
24Description
25-----------
26
27This driver implements support for the Texas Instruments ADS7828.
28
29This device is a 12-bit 8-channel A-D converter.
30
31It can operate in single ended mode (8 +ve inputs) or in differential mode,
32where 4 differential pairs can be measured.
33
34The chip also has the facility to use an external voltage reference. This
35may be required if your hardware supplies the ADS7828 from a 5V supply, see
36the datasheet for more details.