ADUC7033BCPZ-8L-RL Analog Devices Inc, ADUC7033BCPZ-8L-RL Datasheet - Page 64

• Manufacturer Part Number: ADUC7033BCPZ-8L-RL
• Description: IC MCU FLASH 96K ANLG I/O 48LFCS
• Manufacturer: Analog Devices Inc
• Type: Battery Managementr

Specifications of ADUC7033BCPZ-8L-RL

• Input Type: Logic
• Output Type: Logic
• Interface: UART, SPI
• Current - Supply: 20mA
• Mounting Type: Surface Mount
• Package / Case: *
• For Use With: EVAL-ADUC7033QSPZ - EVAL DEV QUICK START ADUC7033
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADuC7033
In summary, the simplified ADC transfer function can be
described as
This equation is valid for the voltage/temperature channel ADC.
For the current channel ADC,
where K is dependent on the PGA gain setting and ADC mode.
Normal Mode
For PGA gains of 1, 4, 8, 16, 32, and 64, the K factor is 1. For
PGA gains of 2 and 128, the K factor is 2. For a PGA gain of
256, the K factor is 4. For a PGA gain of 512, the K factor is 8.
Low Power Mode
The PGA gain is set to 128 and the K factor is 32.
ADC
ADC
OUT
OUT
=
=
⎡
⎢
⎣
⎡
⎢
⎣
V
V
IN
IN
V
V
×
×
REF
REF
PGA
PGA
−
−
ADCOF
K
×
ADCOF
⎤
⎥
⎦
×
ADCGN
⎤
⎥
⎦
ADCGN
×
ADCGN
ADCGN
NOM
NOM
Rev. B | Page 64 of 140
Low Power Plus Mode
The PGA gain is set to 512 and the K factor is 8.
In low power and low power plus modes, the K factor doubles if
(REG_AVDD)/2 is used as the reference.
ADC DIAGNOSTICS
The ADuC7033 features diagnostic capability on both ADCs.
Current ADC Diagnostics
The ADuC7033 features the capability to detect open-circuit
conditions on the application board. This is accomplished using
the two current sources on IIN+ and IIN−; these are controlled
via ADC0CON[14:13].
Note that these current sources have a tolerance of ±30%. A
PGA gain ≥ 2 (ADC0CON[3:0] ≥ 0001) must be used when
current sources are enabled.
Temperature ADC Diagnostics
The ADuC7033 features the capability to detect open-circuit
conditions on the temperature channel inputs. This is
accomplished using the two current sources on VTEMP and
GND_SW, controlled via ADC1CON[14:13].