ADUC7121 Analog Devices, ADUC7121 Datasheet - Page 6

• 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

ADuC7121
Parameter
PADC1 INPUT
ON-CHIP VOLTAGE REFERENCE
EXTERNAL REFERENCE INPUT
IDAC CHANNEL SPECIFICATIONS
REFERENCE CURRENT GENERATOR
RESOLUTION
FULL-SCALE OUTPUT
Voltage Compliance Range
Voltage Compliance Range, IDAC0
IDAC4
IDAC3
IDAC2
IDAC1
IDAC0
Integral Nonlinearity
Noise Current
Full-Scale Error
Full-Scale Error Drift
Zero-Scale Error
Settling Time
Signal Bandwidth
Full-Scale Input Range
Input Leakage at PADC1x
Resolution
Gain Error
Gain Drift
Offset
Offset Drift
PADC1x-Compliant Range
Output Voltage
Accuracy
Reference Temperature Coefficient
Power Supply Rejection Ratio
Output Impedance
Internal V
Input Voltage Range
Reference Current
Temperature Coefficient
Short-Circuit Detection
Overheat Shutdown
IDAC4 Channel
IDAC3 Channel
IDAC2 Channel
IDAC1 Channel
IDAC0 Channel
4
7
REF
4
4
4
Power-On Time
4
4
Min
10.6
11
0.1
1.2
0.4
−0.2
Typ
0.15
3
30
2.5
10
61
10
1
0.38
25
1
11
20
45
80
200
250
±2
50
1
20
135
20
±3
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Max
2
1
50
6
60
±5
30
AV
+580/−430
700
AV
1.6
+1.6
±30
+42/−70
+70/−110
±240
±250
DD
DD
8
− 1.2
Unit
μA
nA
Bits
%
ppm/°C
nA
pA/°C
V
V
mV
ppm/°C
dB
Ω
ms
V
V
V
mA
ppm/°C
mA
°C
Bits
mA
mA
mA
mA
mA
LSB
μA
%
ppm/°C
μA
μA
μA
μA
μA
μA
ms
kHz
53.5 kΩ resistor, PGA gain = 3
0.47 μF from V
Using internal reference
Guaranteed monotonic
Test Conditions/Comments
0.1% accuracy, 5 ppm external resistor for
current to voltage
PGA offset not included
T
T
Output voltage compliance
For IDAC0 channel only, linearity not
guaranteed below 0 V
Using internal reference, 0.1% 5 ppm 3.16 kΩ
external resistor
Junction temperature
11-bit mode
RMS value, bandwidth 20 Hz to 10 MHz
V
Internal V
Pull-down switch off, V
Output range 0.4 V to 1.6 V
Output range −0.2 V to +1.6 V
To 0.1%
A
A
OUT
= 25°C
= 25°C
= 1.6 V
REF
, 5 ppm external resistor
REF
to AGND
OUT
= 0 V