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