ELECTRICAL CHARACTERISTICS: +5V
At T
A
= T
MIN
to T
MAX
, +V
CC
= +5V, V
REF
= +5V, f
SAMPLE
= 200kHz, and f
CLK
= 16 • f
SAMPLE
= 3.2MHz, unless otherwise noted.
ADS7841E, P
PARAMETER
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
Capacitance
Leakage Current
SYSTEM PERFORMANCE
Resolution
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
Conversion Time
Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
DYNAMIC CHARACTERISTICS
Total Harmonic Distortion
(2)
Signal-to-(Noise + Distortion)
Spurious-Free Dynamic Range
Channel-to-Channel Isolation
REFERENCE INPUT
Range
Resistance
Input Current
V
IN
V
IN
V
IN
V
IN
=
=
=
=
5Vp-p
5Vp-p
5Vp-p
5Vp-p
at
at
at
at
10kHz
10kHz
10kHz
50kHz
CONDITIONS
MIN
TYP
MAX
ADS7841EB, PB
MIN
✻
✻
✻
✻
200
12
12
±0.8
0.15
0.1
30
70
±2
±3
1.0
±4
1.0
12
±0.5
✻
✻
✻
✻
±1
±1
✻
✻
±3
✻
✻
11
2
±0.8
✻
✻
✻
✻
✻
✻
±4
✻
200
✻
TYP
MAX
✻
✻
✻
MIN
✻
✻
✻
✻
200
ADS7841ES
TYP
MAX
✻
✻
✻
UNITS
Positive Input - Negative Input
0
Positive Input
–0.2
Negative Input
–0.2
25
V
REF
+V
CC
+0.2
+1.25
V
V
V
pF
nA
Bits
Bits
LSB
(1)
LSB
LSB
LSB
LSB
LSB
µVrms
dB
Clk Cycles
Clk Cycles
kHz
ns
ns
ps
dB
dB
dB
dB
V
GΩ
µA
µA
µA
12
3
200
500
30
100
–78
71
79
120
–72
70
76
✻
✻
✻
–80
72
81
✻
✻
✻
✻
✻
✻
✻
✻
–76
68
72
–78
71
79
120
✻
✻
–72
68
72
0.1
DCLK Static
f
SAMPLE
= 12.5kHz
DCLK Static
5
40
2.5
0.001
CMOS
| I
IH
|
≤
+5µA
| I
IL
|
≤
+5µA
I
OH
= –250µA
I
OL
= 250µA
3.0
–0.3
3.5
+V
CC
100
3
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels
V
IH
V
IL
V
OH
V
OL
Data Format
5.5
+0.8
0.4
Straight Binary
5.25
900
3
4.5
+85
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
V
V
V
V
PWR SUPPLY REQUIREMENTS
+V
CC
Specified Performance
4.75
Quiescent Current
f
SAMPLE
= 12.5kHz
Power-Down Mode
(3)
, CS = +V
CC
Power Dissipation
TEMPERATURE RANGE
Specified Performance
✻
Same specifications as ADS7841E, P.
–40
550
300
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
V
µA
µA
µA
mW
°C
✻
✻
✻
+125
NOTE: (1) LSB means Least Significant Bit. With V
REF
equal to +5.0V, one LSB is 1.22mV. (2) First five harmonics of the test frequency. (3) Auto power-down mode
(PD1 = PD0 = 0) active or SHDN = GND.
ADS7841
SBAS084B
3
TI [ TEXAS INSTRUMENTS ]
