EVAL-ADUC7128QSPZ Analog Devices Inc, EVAL-ADUC7128QSPZ Datasheet - Page 38
EVAL-ADUC7128QSPZ
Manufacturer Part Number
EVAL-ADUC7128QSPZ
Description
KIT DEV FOR ADUC7128
Manufacturer
Analog Devices Inc
Series
QuickStart™ PLUS Kitr
Type
MCUr
Datasheet
1.EVAL-ADUC7128QSPZ.pdf
(92 pages)
Specifications of EVAL-ADUC7128QSPZ
Contents
Evaluation Board, Power Supply, Cable, Software, Emulator and Documentation
Silicon Manufacturer
Analog Devices
Core Architecture
ARM
Core Sub-architecture
ARM7TDMI
Silicon Core Number
ADuC7128
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
ADuC7128
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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ADuC7128/ADuC7129
BAND GAP REFERENCE
The ADuC7128/ADuC7129 provide an on-chip band gap
reference of 2.5 V that can be used for the ADC and for the
DAC. This internal reference also appears on the V
When using the internal reference, a capacitor of 0.47 μF must
be connected from the external V
stability and fast response during ADC conversions. This
reference can also be connected to an external pin (V
and used as a reference for other circuits in the system.
Table 40. REFCON MMR Bit Designations
Bit
7:1
0
Description
Reserved.
Internal Reference Output Enable.
Note: The on-chip DAC is functional only with the internal reference output enable bit set. It does not work with an external
reference.
Set by user to connect the internal 2.5 V reference to the V
to be buffered.
Cleared by user to disconnect the reference from the V
REF
pin to AGND to ensure
REF
REF
pin.
)
Rev. 0 | Page 38 of 92
REF
pin.
REF
pin. The reference can be used for external components but needs
An external buffer is required because of the low drive capability
of the V
reference input on the V
disable the internal reference. Therefore, the external reference
source must be capable of overdriving the internal reference source.
The band gap reference interface consists of an 8-bit REFCON
MMR, described in Table 40.
REF
output. A programmable option also allows an external
REF
pin. Note that it is not possible to
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