AD6645
SPECIFICATIONS
DC SPECIFICATIONS
AVCC = 5 V, DVCC = 3.3 V; TMIN and TMAX at rated speed grade, unless otherwise noted.
Table 1.
AD6645ASQ-80/AD6645ASV-80 AD6645ASQ-105/AD6645ASV-105
Parameter
Temp Test Level Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
ACCURACY
14
14
Bits
No Missing Codes
Offset Error
Gain Error
Full
Full
Full
II
II
II
II
V
Guaranteed
+1.2
0
0.2ꢀ
0.ꢀ
Guaranteed
+1.2
0
0.ꢀ
1.ꢀ
−10
−10
−1.0
+10
+10
+1.ꢀ
−10
−10
−1.0
+10
+10
+1.ꢀ
mV
% FS
LSB
LSB
Differential Nonlinearity (DNL) Full
Integral Nonlinearity (INL)
TEMPERATURE DRIFT
Offset Error
Full
Full
Full
V
V
V
1.ꢀ
48
1.ꢀ
48
ppm/°C
ppm/°C
mV/V
Gain Error
POWER SUPPLY REJECTION RATIO
(PSRR)
2ꢀ°C
1.0
1.0
REFERENCE OUT (VREF)1
Full
V
2.4
2.4
V
ANALOG INPUTS (AIN, AIN)
Differential Input Voltage Range Full
Differential Input Resistance Full
V
V
2.2
1
2.2
1
V p-p
kΩ
Differential Input Capacitance 2ꢀ°C
POWER SUPPLY
1.ꢀ
1.ꢀ
pF
Supply Voltages
AVCC
DVCC
Full
Full
II
II
4.7ꢀ
3.0
ꢀ.0
3.3
ꢀ.2ꢀ
3.6
4.7ꢀ
3.0
ꢀ.0
3.3
ꢀ.2ꢀ
3.6
V
V
Supply Current
IAVCC (AVCC = ꢀ.0 V)
IDVCC (DVCC = 3.3 V)
Rise Time2
Full
Full
II
II
27ꢀ
32
320
4ꢀ
27ꢀ
32
320
4ꢀ
mA
mA
AVCC
Full
Full
IV
II
2ꢀ0
ꢀ.0
1.ꢀ
2ꢀ0
ms
W
POWER CONSUMPTION
1.ꢀ
1.7ꢀ
1.7ꢀ
1 VREF is provided for setting the common-mode offset of a differential amplifier, such as the AD8138, when a dc-coupled analog input is required. VREF should be
buffered if used to drive additional circuit functions.
2 Specified for dc supplies with linear rise time characteristics.
Rev. D | Page 3 of 24
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