SPECIFICATIONS
ELECTRICAL
At TA = –40°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors as shown in Figure 4, unless otherwise specified.
ADS7809P, U
TYP
ADS7809PB, UB
TYP MAX
PARAMETER
RESOLUTION
CONDITIONS
MIN
MAX
MIN
UNITS
16
✻
Bits
ANALOG INPUT
Voltage Ranges
Impedance
±10, 0V to 5V, etc. (See Table I)
See Table I
Capacitance
35
✻
pF
THROUGHPUT SPEED
Complete Cycle
Acquire and Convert
10
✻
µs
Throughput Rate
100
15
✻
kHz
DC ACCURACY
Integral Linearity Error
Differential Linearity Error
No Missing Codes
Transition Noise(2)
Full Scale Error(3,4)
±3
+3, –2
±2
±1
LSB(1)
LSB
Bits
LSB
%
ppm/°C
%
ppm/°C
mV
ppm/°C
mV
mV
16
1.3
±7
±2
±2
✻
✻
✻
✻
±0.5
±0.5
±10
✻
✻
✻
Full Scale Error Drift
Full Scale Error(3,4)
Ext. 2.5000V Ref
Ext. 2.5000V Ref
Bipolar Ranges
Full Scale Error Drift
Bipolar Zero Error(3)
Bipolar Zero Error Drift
Unipolar Zero Error(3)
Unipolar Zero Error(3)
Unipolar Zero Error Drift
Recovery to Rated Accuracy
after Power Down
Bipolar Ranges
0V tp 10V Ranges
0V to 4V, 0V to 5V Ranges
Unipolar Ranges
±5
±3
✻
✻
±2
1
✻
✻
ppm/°C
ms
1µF Capacitor to CAP
Power Supply Sensitivity
(VDIG = VANA = VD)
+4.75V < VD < +5.25V
±8
✻
LSB
AC ACCURACY
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise+Distortion)
f
IN = 20kHz
fIN = 20kHz
IN = 20kHz
–60dB Input
90
83
83
100
–100
88
30
88
96
86
86
✻
✻
✻
32
✻
✻
dB(5)
dB
dB
dB
dB
–90
–94
f
Signal-to-Noise
Full-Power Bandwidth(6)
f
IN = 20kHz
250
kHz
SAMPLING DYNAMICS
Aperture Delay
Transient Response
Overvoltage Recovery(7)
40
✻
✻
ns
µs
ns
FS Step
No Load
2
✻
✻
150
REFERENCE
Internal Reference Voltage
Internal Reference Source Current
(Must use external buffer)
External Reference Voltage Range
For Specified Linearity
2.48
2.3
2.5
1
2.52
✻
✻
✻
✻
V
µA
2.5
2.7
✻
✻
✻
V
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
VIL = 0V
VIH = 5V
IIH
±10
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.
®
2
ADS7809
BB [ BURR-BROWN CORPORATION ]
