= +5V, using internal reference and fixed resistors shown in Figure 7b, unless otherwise specified.
ADS7806P, U
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
(2)
Gain Error
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
Unipolar Zero Error
(3)
Unipolar Zero Error Drift
Recovery Time to Rated Accuracy
from Power Down
(5)
Power Supply Sensitivity
(V
DIG
= V
ANA
= V
S
)
AC ACCURACY
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise+Distortion)
Signal-to-Noise
Usable Bandwidth
(7)
Full Power Bandwidth (-3dB)
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
Overvoltage Recovery
(8)
REFERENCE
Internal Reference Voltage
Internal Reference Source Current
(Must use external buffer.)
Internal Reference Drift
External Reference Voltage Range
for Specified Linearity
External Reference Current Drain
DIGITAL INPUTS
Logic Levels
V
IL
V
IH
I
IL
I
IH
DIGITAL OUTPUTS
Data Format
Data Coding
V
OL
V
OH
Leakage Current
Output Capacitance
CONDITIONS
MIN
TYP
MAX
12
±10,
0 to +5, 0 to +4
(See Table II)
35
*
MIN
ADS7806PB, UB
TYP
MAX
*
UNITS
Bits
V
pF
µs
µs
kHz
LSB
(1)
LSB
Bits
LSB
%
%
ppm/°C
%
ppm/°C
mV
ppm/°C
mV
ppm/°C
ms
LSB
Acquire and Convert
40
±0.15
±0.15
Guaranteed
0.1
±0.2
±7
Ext. 2.5000V Ref
Ext. 2.5000V Ref
±10V
Range
±10V
Range
0V to 5V, 0V to 4V Ranges
0V to 5V, 0V to 4V Ranges
2.2µF Capacitor to CAP
+4.75V < V
S
< +5.25V
±0.5
±0.5
±0.5
1
20
25
*
±0.9
±0.9
*
*
*
*
±0.1
±5
*
±10
*
±3
*
*
±0.5
*
*
±0.45
±0.45
±0.5
±0.5
±0.25
±0.25
*
*
*
f
IN
=
f
IN
=
f
IN
=
f
IN
=
1kHz,
1kHz,
1kHz,
1kHz,
±10V
±10V
±10V
±10V
80
70
70
90
–90
73
73
130
600
*
–80
72
72
*
*
*
*
*
*
*
dB
(6)
dB
dB
dB
kHz
kHz
40
20
FS Step
750
5
*
*
*
*
ns
ps
µs
ns
No Load
2.48
2.5
1
8
2.5
2.52
*
*
*
*
*
*
V
µA
ppm/°C
V
µA
2.3
Ext. 2.5000V Ref
2.7
100
*
*
*
–0.3
+2.0
V
IL
= 0V
V
IH
= 5V
+0.8
V
D
+0.3V
±10
±10
*
*
*
*
*
*
V
V
µA
µA
Parallel 12-bits in 2-bytes; Serial
Binary Two’s Complement or Straight Binary
I
SINK
= 1.6mA
I
SOURCE
= 500µA
High-Z State,
V
OUT
= 0V to V
DIG
High-Z State
+0.4
+4
±5
15
*
*
*
*
V
V
µA
pF
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.
®
ADS7806
2
SPECIFICATIONS
(CONT)
ELECTRICAL
At T
A
= –40°C to +85°C, f
S
= 40kHz, V
DIG
= V
ANA
= +5V, using internal reference and fixed resistors shown in Figure 7b, unless otherwise specified.
ADS7806P, U
PARAMETER
DIGITAL TIMING
Bus Access Time
Bus Relinquish Time
POWER SUPPLIES
Specified Performance
V
DIG
V
ANA
I
DIG
I
ANA
Power Dissipation
CONDITIONS
R
L
= 3.3kΩ, C
L
= 50pF
R
L
= 3.3kΩ, C
L
= 10pF
MIN
TYP
MAX
83
83
MIN
ADS7806PB, UB
TYP
MAX
*
*
UNITS
ns
ns
Must be
≤
V
ANA
+4.75
+4.75
V
ANA
= V
DIG
= 5V, f
S
= 40kHz
REFD HIGH
PWRD and REFD HIGH
–40
–55
–65
+5
+5
0.6
5.0
28
23
50
+5.25
+5.25
*
*
35
*
*
*
*
*
*
*
*
*
*
V
V
mA
mA
mW
mW
µW
°C
°C
°C
°C/W
°C/W
TEMPERATURE RANGE
Specified Performance
Derated Performance
Storage
Thermal Resistance (
θ
JA
)
Plastic DIP
SOIC
+85
+125
+150
75
75
*
*
*
*
*
*
*
*
NOTES: (1) LSB means Least Significant Bit. One LSB for the
±10V
input range is 4.88mV. (2) Typical rms noise at worst case transition. (3) As measured with
fixed resistors shown in Figure 7b. Adjustable to zero with external potentiometer. (4) 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. (5)
This is the time delay after the ADS7806 is brought out of Power Down Mode until all internal settling occurs and the analog input is acquired to rated accuracy.
A Convert Command after this delay will yield accurate results. (6) All specifications in dB are referred to a full-scale input. (7) Usable Bandwidth defined as Full-
Scale input frequency at which Signal-to-(Noise + Distortion) degrades to 60dB. (8) Recovers to specified performance after 2 x FS input overvoltage.
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