ADUC7121 Analog Devices, ADUC7121 Datasheet - Page 7

• Manufacturer Part Number: ADUC7121
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
• Manufacturer: Analog Devices

Specifications of ADUC7121

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 32
• Adc # Channels: 9

Parameter
LINE REGULATION
LOAD REGULATION
ACPSRR
PULL-DOWN
Voltage DAC (VDAC) CHANNEL
PSRR
DRIFT
SHORT-CIRCUIT CURRENT
ANALOG OUTPUTS
DAC AC CHARACTERISTICS
IDAC4
IDAC3
IDAC2
IDAC1
IDAC0
IDAC4
IDAC3
IDAC2
IDAC1
IDAC0
NMOS
Speed
DC
1 kHz
10 kHz
100 kHz
Offset Drift
Gain Error Drift
Output Range
Slew Rate
Voltage Output Settling Time
Digital-to-Analog Glitch Energy
DC Accuracy
Resolution
Relative Accuracy
Differential Nonlinearity
Calculated Offset Error
Actual Offset Error
Gain Error
Gain Error Mismatch
Settling Time
4
4
4
4
9
10
4
Min
0.75%
6%
−59
−57
−47
−19
0.1
Typ
10
22.5
40
100
750
10
22.5
40
100
750
100
12
±2
±0.2
±2
9
±0.15
0.1
10
−61
20
2.49
10
±20
Rev. 0 | Page 7 of 96
Max
10
±1
±0.8
10
10
V
REF
/AV
DD
− 0.1
Unit
μA/V
μA/V
μA/V
μA/V
μA/V
μA/V
μA/V
μA/V
μA/V
μA/V
% of
full-
scale/V
% of
full-
scale/V
mV
μs
Bits
LSB
LSB
mV
mV
%
%
μs
dB
dB
dB
dB
μV/°C
μV/°C
mA
V/μs
μs
nV-sec
Test Conditions/Comments
Measured with full-scale current load on
current DACs
Measured with full-scale current load on
current DACs
10 kHz, percentage of each current DAC full-
scale current per volt
2.25 MHz, percentage of each current DAC
full-scale current per volt
Drain 40 mA
Triggered by PLA, draw the pin voltage to
10% of its original value
R
Buffered
Guaranteed monotonic
2.5 V internal reference
Measured at Code 0
% of full scale on DAC0
Buffered
Buffer on
1 LSB change at major carry (where maximum
number of bits simultaneously change in the
DACxDAT register)
L
= 5 kΩ, C
L
= 100 pF
ADuC7121