ADS7808 Burr-Brown Corporation, ADS7808 Datasheet - Page 3

• Manufacturer Part Number: ADS7808
• Description: 12-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER
• Manufacturer: Burr-Brown Corporation

ABSOLUTE MAXIMUM RATINGS
NOTES: (1) LSB means Least Significant Bit. For the 10V input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures. (3)
As measured with fixed resistors in Figure 4. Adjustable to zero with external potentiometer. (4) For bipolar input ranges, full scale error is the worst case of –Full
Scale or +Full Scale untrimmed deviation from ideal first and last code transitions, divided by the transition voltage (not divided by the full-scale range) and includes
the effect of offset error. For unipolar input ranges, full scale error is the deviation of the last code transition divided by the transition voltage. It also includes the
effect of offset error. (5) All specifications in dB are referred to a full-scale 10V input. (6) Full-Power Bandwidth defined as Full-Scale input frequency at which Signal-
to (Noise + Distortion) degrades to 60dB. (7) Recovers to specified performance after 2 x FS input overvoltage.
SPECIFICATIONS
ELECTRICAL
At T
ORDERING INFORMATION
PARAMETER
DIGITAL OUTPUTS
Data Format
Data Coding
Pipeline Delay
Data Clock
V
V
Leakage Current
Output Capacitance
POWER SUPPLIES
Specified Performance
Power Dissipation: PWRD LOW
TEMPERATURE RANGE
Specified Performance
Derated Performance
Storage
Thermal Resistance (
Analog Inputs: R1
Ground Voltage Differences: DGND, AGND2 ................................. 0.3V
V
V
V
Digital Inputs ............................................................. –0.3V to V
Maximum Junction Temperature .................................................. +165 C
Internal Power Dissipation ............................................................ 700mW
Lead Temperature (soldering, 10s) .............................................. +300 C
OL
OH
ANA
DIG
DIG
PRODUCT
ADS7808P
ADS7808PB
ADS7808U
ADS7808UB
V
V
I
I
Plastic DIP
SOIC
A
DIG
ANA
DIG
ANA
Internal
External
= –40 C to +85 C, f
....................................................................................................... 7V
to V
...................................................................................................... 7V
(Output Only When
Transmitting Data)
(Can Run Continually)
ANA
....................................................................................... +0.3
R2
R3
CAP ..................................... V
REF ....................................... Indefinite Short to AGND2,
IN
IN
IN
ERROR (LSB)
PWRD HIGH
.......................................................................... 25V
.......................................................................... 25V
.......................................................................... 25V
LINEARITY
MAXIMUM
JA
S
)
0.45
0.45
= 100kHz, V
0.9
0.9
DIG
(NOISE + DISTORTION)
= V
V
(CONT)
DIG
ANA
ANA
SIGNAL-TO-
= V
V
RATIO(dB)
Momentary Short to V
I
MINIMUM
Must be
SOURCE
EXT/INT HIGH
OUT
= +5V, using internal reference and fixed resistors shown in Figure 4, unless otherwise specified.
EXT/INT LOW
+0.3V to AGND2 –0.3V
CONDITIONS
I
High-Z State,
High-Z State
SINK
ANA
70
72
70
72
= 0V to V
+4.75
= 1.6mA
= 5V, f
= 500 A
V
ANA
S
DIG
DIG
= 100kHz
+0.3V
ANA
SPECIFICATION
TEMPERATURE
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
RANGE ( C)
3
+4.75
–40
–55
–65
MIN
0.1
0.3
+4
+5
16
Conversion results only available after completed conversion.
Electrostatic discharge can cause damage ranging from per-
formance degradation to complete device failure. Burr-Brown
Corporation recommends that this integrated circuit be handled
and stored using appropriate ESD protection methods.
PACKAGE INFORMATION
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
PRODUCT
ADS7808P
ADS7808PB
ADS7808U
ADS7808UB
ADS7808P/U
Binary Two's Complement or Straight Binary
Selectable for internal or external data clock
+5.25
TYP
2.3
+5
50
75
75
20-Pin Plastic DIP
20-Pin Plastic DIP
ELECTROSTATIC
DISCHARGE SENSITIVITY
20-Pin SOIC
20-Pin SOIC
PACKAGE
+5.25
+125
+150
+0.4
+85
MAX
100
10
15
5
Serial 12 bits
20-Pin Plastic DIP
20-Pin Plastic DIP
20-Pin SOIC
20-Pin SOIC
PACKAGE
MIN
*
*
*
*
*
*
ADS7808PB/UB
ADS7808
TYP
*
*
*
*
*
PACKAGE DRAWING
MAX
mA
mA
15
V
NUMBER
*
*
*
*
*
222
222
221
221
(1)
UNITS
MHz
MHz
mW
C/W
pF
CW
V
V
V
W
C
A
C
C
®