SPECIFICATIONS
At VANA+ = +5V, VANA– = –5V, VDIG+ = +5V, VDIG– = –5V, and TA = –40°C to +85°C, using internal reference, fCLOCK = 2.1MHz.
ANALOG-TO-DIGITAL CONVERTER CHANNELS
ADS7833N
PARAMETER
RESOLUTION
CONDITIONS
MIN
TYP
MAX
UNITS
12
Bit
ANALOG INPUT
Full Scale Voltage, Differential
G = 1.0V/V
G = 1.25V/V
G = 2.5V/V
G = 5.0V/V
±2.5
±2.0
±1.0
V
V
V
±0.5
V
Common-Mode Voltage
Impedance
Capacitance
±0.5
See Table VII
1012
V
Ω
pF
20
THROUGHPUT SPEED
Conversion Time
Complete Cycle
CLK = 2.1MHz
Acquire and Convert
6.1
6.6
µs
µs
Throughput Rate
150
200
kHz
SAMPLING DYNAMICS
S/H Droop Rate
S/H Acquisition Time
S/H Aperture Delay
S/H Aperture Jitter
Sampling Skew, Channel-to-Channel
0.1
0.5
50
50
3
µV/µs
µs
ns
ps
ns
DC ACCURACY
Integral Linearity - ADC
Differential Linearity - ADC
No Missing Codes
±0.5
±0.5
±2
LSB
LSB
Bits
12
Integral Linearity - Asynchronous, Synchronous
Differential Linearity - Asynchronous, Synchronous
Full Scale Error
Full Scale Error Other Gains
Full Scale Error Drift
0.5
0.5
±3
±3
2
LSB
LSB
G = 1.0V/V
% of FSR
% of FSR
ppm/°C
ppm/°C
LSB
4
G = 1.0V/V
G = 2.5V/V
G = 1.0V/V
G = 1.0V/V
G = 1.0V/V
±10
±10
±0.5
±0.5
±0.5
±100
±100
±15
±20
Zero Error - ADC
Zero Error - Asynchronous, Synchronous
Zero Error Drift
LSB
ppm/°C
AC ACCURACY
Total Harmonic Distortion
fIN = 1kHz
fIN = 1MHz
CMR
92
72
40
dB
dB
dB
VCM = 1V, fCM = 1MHz
REFERENCE
Internal Reference Voltage
Internal Reference Accuracy
Internal Reference Drift
Internal Reference Source Current
External Reference Voltage Range
for Specified Linearity
2.5
±0.25
±10
10
V
%
ppm/°C
µA
2.25
2.5
2.75
V
External Reference Current Drain
10
µA
DIGITAL INPUTS
Logic Levels
VIL
VIH
0
+3.5
1.5
+5
V
V
IIL
IIH
±10
±10
15
µA
µA
pF
Input Capacitance
At All Digital Input Pins
DIGITAL OUTPUTS
Data Format
Data Coding
VOL
12-Bit Serial
BTC
ISINK = 1.6mA
ISOURCE = 500µA
0
4.2
0.4
5
V
V
VOH
Leakage Current
Output Capacitance
±5
15
µA
pF
At All Digital Output Pins
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.
®
ADS7833
2
BB [ BURR-BROWN CORPORATION ]
