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ADS7804 Datasheet(PDF) 2 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part No. ADS7804
Description  12-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER
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Maker  BURR-BROWN [Burr-Brown (TI)]
Homepage  http://www.burr-brown.com
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ADS7804 Datasheet(HTML) 2 Page - Burr-Brown (TI)

 
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2
®
ADS7804
RESOLUTION
12
*
Bits
ANALOG INPUT
Voltage Ranges
±10V
*
V
Impedance
23
*
k
Capacitance
35
*
pF
THROUGHPUT SPEED
Conversion Time
5.7
8
*
*
µs
Complete Cycle
Acquire and Convert
10
*
µs
Throughput Rate
100
*
kHz
DC ACCURACY
Integral Linearity Error
±0.9
±0.45
LSB(1)
Differential Linearity Error
±0.9
±0.45
LSB
No Missing Codes
*
Bits
Transition Noise(2)
0.1
*
LSB
Full Scale Error(3,4)
±0.5
±0.25
%
Full Scale Error Drift
±7
±5
ppm/
°C
Full Scale Error(3,4)
Ext. 2.5000V Ref
±0.5
±0.25
%
Full Scale Error Drift
Ext. 2.5000V Ref
±2
*
ppm/
°C
Bipolar Zero Error(3)
±10
±10
mV
Bipolar Zero Error Drift
±2
*
ppm/
°C
Power Supply Sensitivity
+4.75V < VD < +5.25V
±0.5
*
LSB
(VDIG = VANA = VD)
AC ACCURACY
Spurious-Free Dynamic Range
fIN = 45kHz
80
*
dB(5)
Total Harmonic Distortion
fIN = 45kHz
–80
*
dB
Signal-to-(Noise+Distortion)
fIN = 45kHz
70
72
dB
Signal-to-Noise
fIN = 45kHz
70
72
dB
Full-Power Bandwidth(6)
250
*
kHz
SAMPLING DYNAMICS
Aperture Delay
40
*
ns
Aperture Jitter
*
Transient Response
FS Step
2
*
µs
Overvoltage Recovery(7)
150
*
ns
REFERENCE
Internal Reference Voltage
2.48
2.5
2.52
*
*
*
V
Internal Reference Source Current
1
*
µA
(Must use external buffer.)
Internal Reference Drift
8
ppm/
°C
External Reference Voltage Range
2.3
2.5
2.7
*
*
*
V
for Specified Linearity
External Reference Current Drain
Ext. 2.5000V Ref
100
*
µA
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
*
*
V
VIH
+2.0
VD +0.3V
*
*
V
IIL
±10
*
µA
IIH
±10
*
µA
DIGITAL OUTPUTS
Data Format
Data Coding
VOL
ISINK = 1.6mA
+0.4
*
V
VOH
ISOURCE = 500µA+4
*
V
Leakage Current
High-Z State,
±5*
µA
VOUT = 0V to VDIG
Output Capacitance
High-Z State
15
15
pF
DIGITAL TIMING
Bus Access Time
83
*
ns
Bus Relinquish Time
83
*
ns
SPECIFICATIONS
ELECTRICAL
At TA = –40°C to +85°C, fS = 100kHz, and VDIG = VANA = +5V, using internal reference, unless otherwise specified.
ADS7804P, U
ADS7804PB, UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
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.
Guaranteed
Sufficient to meet AC specs
Parallel 12 bits
Binary Two’s Complement


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