AD9822
Rev. B | Page 4 of 20
Parameter Min Typ Max Unit
POWER DISSIPATION
3-Channel Mode 385 450 mW
3-Channel Mode @ 6 MHz 335 410 mW
1-Channel Mode 300 mW
1-Channel Mode @ 6 MHz 250 mW
1
Linear input signal range is from 2 V to 4 V when the CCD’s reference level is clamped to 4 V by the AD9822’s input clamp.
1V TYP
RESET TRANSIENT
4V SET BY INPUT CLAMP (3V OPTION ALSO AVAILABLE)
2V p-p MAX INPUT SIGNAL RANGE
00623-002
2
The PGA gain is approximately linear-in-dB and follows the equation:
]
⎥
⎦
⎤
⎢
⎣
⎡
−
+
=
63
63
7.41
7.5
G
Gain
where G is the register value. See Figure . 15
DIGITAL SPECIFICATIONS
T
MIN
to T
MAX
, AVDD = 5 V, DRVDD = 5 V, CDS mode, f
ADCCLK
= 15 MHz, f
CDSCLK1
= f
CDSCLK2
= 5 MHz, C
L
= 10 pF, unless otherwise noted.
Table 2.
Parameter Symbol Min Typ Max Unit
LOGIC INPUTS
High Level Input Voltage V
IH
2.0 V
Low Level Input Voltage V
IL
0.8 V
High Level Input Current I
IH
10 µA
Low Level Input Current I
IL
10 µA
Input Capacitance C
IN
10 pF
LOGIC OUTPUTS
High Level Output Voltage V
OH
4.5 V
Low Level Output Voltage V
OL
0.1 V
High Level Output Current I
OH
50 µA
Low Level Output Current I
OL
50 µA
