ELECTRICAL CHARACTERISTICS: +5V
At T
A
= –40°C to +85°C, +V
DD
= +5.0V, V
REF
= External +5.0V, SCL Clock Frequency = 3.4MHz (High-Speed Mode), unless otherwise noted.
ADS7828E
PARAMETER
ANALOG INPUT
Full-Scale Input Scan
Absolute Input Range
Capacitance
Leakage Current
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity Error
Differential Linearity Error
Offset Error
Offset Error Match
Gain Error
Gain Error Match
Noise
Power-Supply Rejection
SAMPLING DYNAMICS
Throughput Frequency
High Speed Mode: SCL = 3.4MHz
Fast Mode: SCL = 400kHz
Standard Mode, SCL = 100kHz
6
V
IN
=
V
IN
=
V
IN
=
V
IN
=
2.5V
PP
2.5V
PP
2.5V
PP
2.5V
PP
at
at
at
at
10kHz
10kHz
10kHz
10kHz
–82
72
71
86
120
2.475
Internal Reference ON
Internal Reference OFF
Int. Ref. ON, SCL and SDA pulled HIGH
0.05
High Speed Mode: SCL = 3.4MHz
CMOS
+V
DD
• 0.7
–0.3
Min. 3mA Sink Current
V
IH
= +V
DD
+0.5
V
IL
= -0.3
+V
DD
• 0.3
0.4
10
Straight
Binary
10010
Specified Performance
High Speed Mode: SCL = 3.4MHz
Fast Mode: SCL = 400kHz
Standard Mode, SCL = 100kHz
High Speed Mode: SCL = 3.4MHz
Fast Mode: SCL = 400kHz
Standard Mode, SCL = 100kHz
High Speed Mode: SCL = 3.4MHz
Fast Mode: SCL = 400kHz
Standard Mode, SCL = 100kHz
SCL Pulled HIGH, SDA Pulled HIGH
–40
4.75
5
750
300
150
3.75
1.5
0.75
400
150
35
400
3000
+85
–40
5.25
1000
4.75
1
20
CMOS
+V
DD
+ 0.5 +V
DD
• 0.7
–0.3
+V
DD
+ 0.5
+V
DD
• 0.3
0.4
10
Straight
Binary
10010
5
750
300
150
3.75
1.5
0.75
400
150
35
400
3000
+85
5.25
1000
Binary
V
µA
µA
µA
mW
mW
mW
µA
µA
µA
nA
°C
V
V
V
µA
µA
2.5
15
110
1
1300
2.525
2.475
12
±1.0
±1.0
±1.0
±1.0
33
82
50
8
2
6
–82
72
71
86
120
2.5
15
110
1
1300
2.525
±2
±3
±1
±3
±1
CONDITIONS
Positive Input - Negative Input
Positive Input
Negative Input
MIN
0
–0.2
–0.2
25
±1
12
±0.5
±0.5
±0.75
±0.75
33
82
50
8
2
±1
–1, +2
±2
±1
±2
±1
TYP
MAX
V
REF
+V
DD
+ 0.2
+0.2
MIN
0
–0.2
–0.2
25
±1
ADS7828EB
TYP
MAX
V
REF
+V
DD
+ 0.2
+0.2
UNITS
V
V
V
pF
µA
Bits
LSB
(1)
LSB
LSB
LSB
LSB
LSB
µVRMS
dB
kHz
kHz
kHz
µs
dB
(2)
dB
dB
dB
dB
V
ppm/°C
Ω
GΩ
µA
V
GΩ
µA
Conversion Time
AC ACCURACY
Total Harmonic Distortion
Signal-to-Ratio
Signal-to-(Noise+Distortion) Ratio
Spurious-Free Dynamic Range
Isolation Channel-to-Channel
VOLTAGE REFERENCE OUTPUT
Range
Internal Reference Drift
Output Impedance
Quiescent Current
VOLTAGE REFERENCE INPUT
Range
Resistance
Current Drain
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels:
V
IH
V
IL
V
OL
Input Leakage: I
IH
I
IL
Data Format
ADS7828 HARDWARE ADDRESS
POWER-SUPPLY REQUIREMENTS
Power-Supply Voltage, +V
DD
Quiescent Current
V
DD
0.05
1
20
V
DD
–10
–10
Power Dissipation
5
5
Power-Down Mode
w/Wrong Address Selected
Full Power-Down
TEMPERATURE RANGE
Specified Performance
NOTES: (1) LSB means Least Significant Bit. With V
REF
equal to 5.0V, 1LSB is 1.22mV.
(2) THD measured out to the 9th-harmonic.
4
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ADS7828
SBAS181C
TI [ TEXAS INSTRUMENTS ]
