MAX11410 Datasheet, PDF (65/95 Pages) Maxim Integrated Products – 24-Bit Multi-Channel Low-Power

MAX11410
24-Bit Multi-Channel Low-Power
1.9ksps Delta-Sigma ADC with PGA
SELF_GAIN_1 (0x18)
The self-calibration gain value scales the self-calibration offset-corrected conversion result before the system offset and
gain calibration values have been applied. There is a self-gain calibration register for each of the eight selectable gain
settings. The format is fixed point, unsigned binary, and is unaffected by the U_BN and FORMAT bits. The binary point is
located after the MSB. The MSB corresponds to 2⁰, and the LSB corresponds to 2^-23. A write to the system-calibration
register is allowed. The written value remains valid until either a new write is completed or until an on-demand system-
calibration operation is performed, which overwrites the current value. The self-calibration gain value scales the self-
cal offset corrected conversion result by up to 2x or can correct a gain error of approximately –50%. The gain will be
corrected to within 2 LSB.
BIT
23
22
21
20
19
18
17
16
Field
SELF_GAIN_1[23:16]
Reset
Access Type
Write, Read
Bit
15
14
13
12
11
10
9
8
Field
SELF_GAIN_1[15:8]
Reset
Access Type
Write, Read
Bit
7
6
5
4
3
2
1
0
Field
SELF_GAIN_1[7:0]
Reset
Access Type
Write, Read
BITFIELD
SELF_GAIN_1
BITS
23:0
DESCRIPTION
Self-gain correction value for gain = 1.
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