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ADS7808P Datasheet(PDF) 3 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
No. de pieza ADS7808P
Descripción Electrónicos  12-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER
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Fabricante Electrónico  BURR-BROWN [Burr-Brown (TI)]
Página de inicio  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

ADS7808P Datasheet(HTML) 3 Page - Burr-Brown (TI)

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3
®
ADS7808
DIGITAL OUTPUTS
Data Format
Data Coding
Pipeline Delay
Data Clock
Internal
EXT/INT LOW
2.3
T
MHz
(Output Only When
Transmitting Data)
External
EXT/INT HIGH
0.1
10
TT
MHz
(Can Run Continually)
VOL
ISINK = 1.6mA
+0.4
T
V
VOH
ISOURCE = 500µA+4
T
V
Leakage Current
High-Z State,
±5
T
µA
VOUT = 0V to VDIG
Output Capacitance
High-Z State
15
15
pF
POWER SUPPLIES
Specified Performance
VDIG
Must be
≤ V
ANA
+4.75
+5
+5.25
T
**V
VANA
+4.75
+5
+5.25
T
**
V
IDIG
0.3
*
mA
IANA
16
*
mA
Power Dissipation: PWRD LOW
VDIG = VANA = 5V, fS = 100kHz
100
*
mW
PWRD HIGH
50
*
µW
TEMPERATURE RANGE
Specified Performance
–40
+85
*
*
°C
Derated Performance
–55
+125
*
*
°C
Storage
–65
+150
*
*
°C
Thermal Resistance (
θ
JA)
Plastic DIP
75
*
°C/W
SOIC
75
*
°CW
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.
ELECTROSTATIC
DISCHARGE SENSITIVITY
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.
SPECIFICATIONS (CONT)
ELECTRICAL
At TA = –40°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors shown in Figure 4, unless otherwise specified.
ADS7808P/U
ADS7808PB/UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Analog Inputs: R1IN .......................................................................... ±25V
R2IN .......................................................................... ±25V
R3IN .......................................................................... ±25V
CAP ..................................... VANA+0.3V to AGND2 –0.3V
REF ....................................... Indefinite Short to AGND2,
Momentary Short to VANA
Ground Voltage Differences: DGND, AGND2 .................................
±0.3V
VANA ...................................................................................................... 7V
VDIG to VANA ....................................................................................... +0.3
VDIG ....................................................................................................... 7V
Digital Inputs ............................................................. –0.3V to VDIG +0.3V
Maximum Junction Temperature .................................................. +165
°C
Internal Power Dissipation ............................................................ 700mW
Lead Temperature (soldering, 10s) .............................................. +300
°C
ABSOLUTE MAXIMUM RATINGS
ORDERING INFORMATION
MINIMUM
MAXIMUM
SIGNAL-TO-
SPECIFICATION
LINEARITY
(NOISE + DISTORTION)
TEMPERATURE
PRODUCT
ERROR (LSB)
RATIO(dB)
RANGE (
°C)
PACKAGE
ADS7808P
±0.9
70
–40
°C to +85°C
20-Pin Plastic DIP
ADS7808PB
±0.45
72
–40
°C to +85°C
20-Pin Plastic DIP
ADS7808U
±0.9
70
–40
°C to +85°C
20-Pin SOIC
ADS7808UB
±0.45
72
–40
°C to +85°C
20-Pin SOIC
PACKAGE INFORMATION
PACKAGE DRAWING
PRODUCT
PACKAGE
NUMBER(1)
ADS7808P
20-Pin Plastic DIP
222
ADS7808PB
20-Pin Plastic DIP
222
ADS7808U
20-Pin SOIC
221
ADS7808UB
20-Pin SOIC
221
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
Serial 12 bits
Binary Two's Complement or Straight Binary
Conversion results only available after completed conversion.
Selectable for internal or external data clock


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