ADS7852YB Burr-Brown Corporation, ADS7852YB Datasheet - Page 3

• Manufacturer Part Number: ADS7852YB
• Description: 12-Bit/ 8-Channel/ Parallel Output ANALOG-TO-DIGITAL CONVERTER
• Manufacturer: Burr-Brown Corporation

PIN CONFIGURATION
Electrostatic discharge can cause damage ranging from per-
formance degradation to complete device failure. Burr-
Brown Corporation recommends that all integrated circuits
be handled and stored using appropriate ESD protection
methods.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet
published specifications.
ABSOLUTE MAXIMUM RATINGS
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings” may
cause permanent damage to the device. Exposure to absolute maximum condi-
tions for extended periods may affect device reliability.
Analog Inputs to AGND, Any Channel Input .............. –0.3V to (V
REF
Digital Inputs to DGND .............................................. –0.3V to (V
Ground Voltage Differences: AGND, DGND ..................................... 0.3V
+V
Power Dissipation .......................................................................... 325mW
Maximum Junction Temperature ................................................... +150 C
Operating Temperature Range ......................................... –40 C to +85 C
Storage Temperature Range .......................................... –65 C to +150 C
Lead Temperature (soldering, 10s) ............................................... +300 C
Top View
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
SS
IN
to AGND .......................................................................... –0.3V to 6V
......................................................................... –0.3V to (V
1
2
3
4
5
6
7
8
ELECTROSTATIC
DISCHARGE SENSITIVITY
ADS7852Y
(1)
24
23
22
21
20
19
18
17
D
D
D
+ 0.3V)
+ 0.3V)
+ 0.3V)
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
TQFP
3
PIN ASSIGNMENTS
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
DGND
NAME
AGND
BUSY
DB11
DB10
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
V
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
CLK
WR
V
RD
CS
A2
A1
A0
REF
SS
DESCRIPTION
Analog Input Channel 0
Analog Input Channel 1
Analog Input Channel 2
Analog Input Channel 3
Analog Input Channel 4
Analog Input Channel 5
Analog Input Channel 6
Analog Input Channel 7
Analog Ground, GND = 0V
Voltage Reference Input and Output. See
Specification Table for ranges. Decouple to
ground with a 0.1 F ceramic capacitor and
a 2.2 F tantalum capacitor.
Digital Ground, GND = 0V
Channel Address. See Channel Selection
Table for details.
Channel Address. See Channel Selection
Table for details.
Channel Address. See Channel Selection
Table for details.
Data Bit 11 (MSB)
Data Bit 10
Data Bit 9
Data Bit 8
Data Bit 7
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0 (LSB)
Write Input. Active LOW. Use to start a
new conversion and to select an analog
channel via address inputs A0, A1 and A2
in combination with CS.
BUSY output goes LOW and stays LOW
during a conversion. BUSY rises when a
conversion is complete.
External Clock Input. The clock speed
determines the conversion rate by the
equation: f
Read Input. Active LOW. Use to read the
data outputs in combination with CS. Also
use (in conjunction with A0 or A1) to place
device in power-down mode.
Chip Select Input. Active LOW. The
combination of CS taken LOW and WR
taken LOW initiates a new conversion and
places the outputs in tri-state mode.
Voltage Supply Input. Nominally +5V.
Decouple to ground with a 0.1 F ceramic
capacitor and a 10 F tantalum capacitor.
ADS7852
CLK
= 16 • f
SAMPLE
.
®