ADuC7019/20/21/22/24/25/26/27/28/29
SPECIFICATIONS
Data Sheet
AV
DD
= IOV
DD
= 2.7 V to 3.6 V, V
REF
= 2.5 V internal reference, f
CORE
= 41.78 MHz, T
A
= −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter
ADC CHANNEL SPECIFICATIONS
ADC Power-Up Time
DC Accuracy
Resolution
Integral Nonlinearity
Differential Nonlinearity
DC Code Distribution
ENDPOINT ERRORS
Offset Error
Offset Error Match
Gain Error
Gain Error Match
DYNAMIC PERFORMANCE
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
(PHSN)
Channel-to-Channel Crosstalk
ANALOG INPUT
Input Voltage Ranges
Differential Mode
Single-Ended Mode
Leakage Current
Input Capacitance
ON-CHIP VOLTAGE REFERENCE
Output Voltage
Accuracy
Reference Temperature Coefficient
Power Supply Rejection Ratio
Output Impedance
Internal V
REF
Power-On Time
EXTERNAL REFERENCE INPUT
Input Voltage Range
DAC CHANNEL SPECIFICATIONS
DC Accuracy
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Gain Error
Gain Error Mismatch
ANALOG OUTPUTS
Output Voltage Range_0
Output Voltage Range_1
Output Voltage Range_2
Output Impedance
Min
Typ
5
12
±0.6
±1.0
±0.5
+0.7/−0.6
1
±1
±1
±2
±1
69
−78
−75
−80
±1.5
+1/−0.9
Max
Unit
μs
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
dB
dB
dB
dB
f
IN
= 10 kHz sine wave, f
SAMPLE
= 1 MSPS
Includes distortion and noise components
Test Conditions/Comments
Eight acquisition clocks and fADC/2
2.5 V internal reference
1.0 V external reference
2.5 V internal reference
1.0 V external reference
ADC input is a dc voltage
±2
±5
Measured on adjacent channels
±1
20
2.5
V
CM6
± V
REF
/2
0 to V
REF
±6
V
V
µA
pF
V
mV
ppm/°C
dB
Ω
ms
V
During ADC acquisition
0.47 µF from V
REF
to AGND
T
A
= 25°C
±5
±40
75
70
1
0.625
AV
DD
T
A
= 25°C
R
L
= 5 kΩ, C
L
= 100 pF
12
±2
±1
±15
±1
0.1
0 to DAC
REF
0 to 2.5
0 to DACV
DD
2
Rev. F | Page 10 of 104
Bits
LSB
LSB
mV
%
%
V
V
V
Ω
Guaranteed monotonic
2.5 V internal reference
% of full scale on DAC0
DAC
REF
range: DACGND to DACV
DD
AD [ ANALOG DEVICES ]
