ADS7808 Burr-Brown Corporation, ADS7808 Datasheet - Page 2

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

SPECIFICATIONS
ELECTRICAL
At T
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
PARAMETER
RESOLUTION
ANALOG INPUT
Voltage Ranges
Impedance
Capacitance
THROUGHPUT SPEED
Conversion Time
Complete Cycle
Throughput Rate
DC ACCURACY
Integral Linearity Error
Differential Linearity Error
No Missing Codes
Transition Noise
Full Scale Error
Full Scale Error Drift
Full Scale Error
Full Scale Error Drift
Bipolar Zero Error
Bipolar Zero Error Drift
Unipolar Zero Error
Unipolar Zero Error Drift
Recovery to Rated Accuracy
Power Supply Sensitivity
AC ACCURACY
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise+Distortion)
Signal-to-Noise
Full-Power Bandwidth
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
Overvoltage Recovery
REFERENCE
Internal Reference Voltage
Internal Reference Source Current
External Reference Voltage Range
External Reference Current Drain
DIGITAL INPUTS
Logic Levels
after Power Down
(V
(Must use external buffer)
for Specified Linearity
V
V
A
I
I
IL
IH
IL
IH
= –40 C to +85 C, f
DIG
= V
ANA
= V
®
(3,4)
(3,4)
(2)
(3)
D
ADS7808
(3)
)
(6)
(7)
S
= 100kHz, V
DIG
= V
ANA
1 F Capacitor to CAP
+4.75V < V
Acquire and Convert
Ext. 2.5000V Ref
Ext. 2.5000V Ref
0V to 10V Range
Ext. 2.5000V Ref
Unipolar Ranges
0V to 4V Range
0V to 5V Range
Bipolar Ranges
Bipolar Ranges
= +5V, using internal reference and fixed resistors as shown in Figure 4, unless otherwise specified.
CONDITIONS
f
f
f
f
IN
IN
IN
IN
V
No Load
V
FS Step
= 45kHz
= 45kHz
= 45kHz
= 45kHz
IH
IL
= 0V
= 5V
D
< +5.25V
2
MIN
2.48
–0.3
+2.0
100
Sufficient to meet AC specs
2.3
80
70
70
ADS7808P, U
Guaranteed
TYP
0.1
–90
250
150
5.7
2.5
2.5
35
90
73
73
40
1
1
7
2
2
2
10V, 0V to 5V, etc. (See Table I)
V
D
MAX
2.52
+0.8
–80
100
2.7
+0.3V
12
10
0.9
0.9
0.5
0.5
0.5
See Table I
8
10
2
10
10
5
3
3
MIN
72
72
ADS7808PB, UB
TYP
5
2
MAX
0.45
0.45
0.25
0.25
ppm/ C
ppm/ C
ppm/ C
ppm/ C
UNITS
LSB
dB
LSB
LSB
LSB
kHz
kHz
Bits
mV
mV
mV
mV
ms
pF
dB
dB
dB
ns
ns
ns
%
%
V
V
V
V
A
A
A
A
s
s
s
(5)
(1)