SPECIFICATIONS (CONT)
ADS7832 Electrical Specifications with 5V Supply
VA = VD = 5V ±10%; VREF+ = 5V; VREF– = AGND = DGND = 0V; CLK = 1MHz external 50% ±2% Duty Cycle, TA = –40°C to +85°C, after calibration at any temperature, unless
otherwise specified.
ADS7832BP/ADS7832BN
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
AC ACCURACY
Signal-to-(Noise + Distortion) Ratio
f
IN = 1kHz
69
66
71
69
dB(1)
dB
fIN = 50kHz
Total Harmonic Distortion
Signal-to-Noise Ratio
f
f
IN = 50kHz
IN = 50kHz
–75
70
dB
dB
Spurious Free Dynamic Range
fIN = 1kHz
85
dB
f
IN = 50kHz
82
dB
DIGITAL INPUTS
Voltage Levels: VIL
CLK
CLK
All Others
All Others
–0.3
3.5
–0.3
2.4
0.8
VD +0.3V
0.8
V
V
V
VIH
VIL
VIH
VD +0.3V
V
Current Levels: IIL
CAL (Internal Pull-Up)
All Other Inputs
SFR (Internal Pull-Down)
CLK
10
90
µA
µA
µA
mA
µA
nA
IIL
±10
IIH
IIH
IIH
IIH
1.5
±10
±100
All Other Inputs
Power Down Mode (SFR D3 HIGH)
DIGITAL OUTPUTS
Data Format
Data Coding
VOL
Parallel 12 Bits in Two Bytes
Straight Binary
ISINK = 1.6mA
ISOURCE = 200µA
High-Z State
0.4
V
V
µA
pF
VOH
4
Leakage Current
Output Capacitance
±1
High-Z State
4
CALIBRATION TIMING
Calibration Cycle
Calibration Cycle
Power On or Power Failure
During Normal Operation
37393
4625
Clock Cycles
Clock Cycles
DIGITAL TIMING
Bus Access Time
Bus Relinquish Time
83
83
ns
ns
POWER SUPPLIES
Supply Voltage for Specified Performance: VA
Tested at 5.5V
Tested at 5.5V
Tested at 5.5V
5
5
2.5
300
14
50
5.5
5.5
5.5
500
V
V
mA
µA
mW
µW
VD
Supply Current: IA
ID
Power Dissipation
Tested at 5.5V
Power Up Mode or During Conversion
Power Down Mode, No Clock Running
TEMPERATURE RANGE
Specification
Storage
–40
–65
85
150
°C
°C
✻These specifications need to be added based on performance of final silicon.
NOTES: (1) All specifications in dB are referred to a full-scale input range. (2) Over this range, total error will typically not exceed ±1LSB. (3) In this mode, the ADS7832
acquires the input signal for five clock cycles after a start command, before the input is held and conversion begins. (4) LSB means Least Significant Bit. For a 0V to
5V input range, one LSB is 1.22mV. For a 0V to 2.5V input range, one LSB is 610µV.
®
5
ADS7832
BB [ BURR-BROWN CORPORATION ]
