ADUC847BCPZ8-5 Analog Devices Inc, ADUC847BCPZ8-5 Datasheet - Page 4

• Manufacturer Part Number: ADUC847BCPZ8-5
• Description: IC,Data Acquisition CODEC,2-CHANNEL,LLCC,56PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: MicroConverter® ADuC8xxr

Specifications of ADUC847BCPZ8-5

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 12.58MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PSM, PWM, Temp Sensor, WDT
• Number Of I /o: 34
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 10x24b; D/A 1x12b, 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 56-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADUC847QSZ - KIT DEV QUICK START FOR ADUC847
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADuC845/ADuC847/ADuC848
SPECIFICATIONS
AV
DGND = 0 V; XTAL1/XTAL2 = 32.768 kHz crystal; all specifications T
ADC, unless otherwise noted. Core speed = 1.57 MHz (default CD = 3), unless otherwise noted.
Table 1.
Parameter
PRIMARY ADC
PRIMARY ADC ANALOG INPUTS
Footnotes at end of table.
Conversion Rate
No Missing Codes
Resolution (ADuC845/ADuC847)
Resolution (ADuC848)
Output Noise (ADuC845/ADuC847)
Output Noise (ADuC848)
Integral Nonlinearity
Offset Error
Offset Error Drift vs. Temperature
Full-Scale Error
Gain Error Drift vs. Temperature
Power Supply Rejection
Differential Input Voltage Ranges
Bipolar Mode (ADC0CON1.5 = 0)
Unipolar Mode (ADC0CON1.5 = 1)
ADC Range Matching
Common-Mode Rejection DC
Common-Mode Rejection
50 Hz/60 Hz
DD
ADuC845/ADuC847
ADuC848
On AIN
On AIN
= 2.7 V to 3.6 V or 4.75 V to 5.25 V, DV
3
2
4
2
1
4
, 5 6
2
Min
16.06
24
24
See Table 11 and Table 15
See Table 13 and Table 17
See Table 10 and Table 14
See Table 12 and Table 16
80
95
95
90
5.4
DD
= 2.7 V to 3.6 V or 4.75 V to 5.25 V, REFIN(+) = 2.5 V, REFIN(–) = AGND; AGND =
Typ
±3
±10
±200
±10
±10
±0.5
±0.5
113
80
±1.024 ×
V
0 – 1.024 ×
V
±2
113
REF
REF
/GAIN
/GAIN
Rev. B | Page 4 of 108
Max
105
1365
±15
MIN
to T
Unit
Hz
Hz
Bits
Bits
µV (rms)
µV (rms)
ppm of FSR
µV
nV/°C
nV/°C
µV
µV
LSB
ppm/°C
dB
dB
dB
V
V
µV
dB
dB
dB
dB
MAX
16
, unless otherwise noted. Input buffer on for primary
Conditions
Chop on (ADCMODE.3 = 0)
Chop off (ADCMODE.3 = 1)
≤26.7 Hz update rate with chop enabled
≤80.3 Hz update rate with chop disabled
Output noise varies with selected update rates,
Output noise varies with selected update rates,
1 LSB
Chop on
Chop off, offset error is in the order of the noise
Chop on (ADCMODE.3 = 0)
Chop off (ADCMODE.3 = 1)
±20 mV to ±2.56 V
±20 mV to ±640 mV
±1.28 V to ±2.56 V
AIN = 1 V, ±2.56 V, chop enabled
AIN = 7.8 mV, ±20 mV, chop enabled
AIN = 1 V, ±2.56 V, chop disabled
Gain = 1 to 128
V
V
AIN = 18 mV, chop enabled
Chop enabled, chop disabled
AIN = 7.8 mV, range = ±20 mV
AIN = 1 V, range = ±2.56 V
50 Hz/60 Hz ± 1 Hz, 16.6 Hz and 50 Hz update
AIN = 7.8 mV, range = ±20 mV
AIN = 1 V, range = ±2.56 V
REF
REF
gain range, and chop status.
gain range, and chop status.
for the programmed gain and update rate
following a calibration.
REFIN2(+) − REFIN2(−) (or Int 1.25 V
REFIN2(+) − REFIN2(−) (or Int 1.25 V
rate, chop enabled, REJ60 enabled
= REFIN(+) − REFIN(−) or
= REFIN(+) − REFIN(−) or
16
2
REF
REF
)
)