Datasheet

AD9241
REV. 0
–4–
ABSOLUTE MAXIMUM RATINGS*
With
Respect
Parameter to Min Max Units
AVDD AVSS –0.3 +6.5 V
DVDD DVSS –0.3 +6.5 V
AVSS DVSS –0.3 +0.3 V
AVDD DVDD –6.5 +6.5 V
DRVDD DRVSS –0.3 +6.5 V
DRVSS AVSS –0.3 +0.3 V
REFCOM AVSS –0.3 +0.3 V
CLK DVSS –0.3 DVDD
+ 0.3 V
Digital Outputs DRVSS –0.3 DRVDD
+ 0.3 V
VINA, VINB AVSS –0.3 AVDD
+ 0.3 V
VREF AVSS –0.3 AVDD
+ 0.3 V
SENSE AVSS –0.3 AVDD
+ 0.3 V
CAPB, CAPT AVSS –0.3 AVDD
+ 0.3 V
Junction Temperature +150 °C
Storage Temperature –65 +150 °C
Lead Temperature
(10 sec) +300 °C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods may effect device reliability.
SWITCHING SPECIFICATIONS
Parameters Symbol AD9241 Units
Clock Period
1
t
C
800 ns min
CLOCK Pulse Width High t
CH
360 ns min
CLOCK Pulse Width Low t
CL
360 ns min
Output Delay t
OD
8 ns min
13 ns typ
19 ns max
Pipeline Delay (Latency) 3 Clock Cycles
NOTES
1
The clock period may be extended to 1 ms without degradation in specified performance @ +25 °C.
Specifications subject to change without notice.
(T
MIN
to T
MAX
with AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, C
L
= 20 pF)
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD9241 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
t
CL
t
CH
t
C
t
OD
DATA 1
DATA
OUTPUT
INPUT
CLOCK
ANALOG
INPUT
S1
S2
S3
S4
Figure 1. Timing Diagram
THERMAL CHARACTERISTICS
Thermal Resistance
44-Pin MQFP
θ
JA
= 53.2°C/W
θ
JC
= 19°C/W
ORDERING GUIDE
Temperature Package Package
Model Range Description Option*
AD9241AS –40
o
C to +85
o
C 44-Pin MQFP S-44
AD9241EB Evaluation Board
*S = Metric Quad Flatpack.
PIN CONNECTION
3
4
5
6
7
1
2
10
11
8
9
40 39 3841424344 36 35 3437
29
30
31
32
33
27
28
25
26
23
24
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
12
13
14 15 16 17 18 19
20
21 22
BIT 5
BIT 4
BIT 3
BIT 8
BIT 13
BIT 12
BIT 11
BIT 9
BIT 7
BIT 6
NC
NC
NC
CML
NC
CAPT
NC
REFCOM
VREF
SENSE
NC
AVSS
AVDD
NC
AD9241
DVSS
AVSS
DVDD
AVDD
DRVSS
DRVDD
CLK
NC = NO CONNECT
NC
NC
NC
(LSB) BIT 14
NC
OTR
BIT 1 (MSB)
BIT 2
BIT 10
CAPB
NC
VINB
VINA