Datasheet

ADS1210, ADS1211
2
SBAS034B
www.ti.com
All specifications T
MIN
to T
MAX
, AV
DD
= DV
DD
= +5V, f
XIN
= 10MHz, programmable gain amplifier setting of 1, Turbo Mode Rate of 1, REF
OUT
disabled,V
BIAS
disabled,
and external 2.5V reference, unless otherwise specified.
SPECIFICATIONS
ADS1210U, P/ADS1211U, P, E
PARAMETER CONDITIONS MIN TYP MAX UNITS
ANALOG INPUT
Input Voltage Range
(1)
0+5V
With V
BIAS
(2)
–10 +10 V
Input Impedance G = Gain, TMR = Turbo Mode Rate 4/(G • TMR)
(3)
MΩ
Programmable Gain Amplifier User Programmable: 1, 2, 4, 8, or 16 1 16
Input Capacitance 8pF
Input Leakage Current At +25°C550pA
At T
MIN
to T
MAX
1nA
SYSTEMS PERFORMANCE
Resolution 24 Bits
No Missing Codes f
DATA
= 60Hz 22 Bits
Integral Linearity f
DATA
= 60Hz ±0.0015 %FSR
f
DATA
= 1000Hz, TMR of 16 ±0.0015 %FSR
Unipolar Offset Error
(4)
See Note 5
Unipolar Offset Drift
(6)
1 µV/°C
Gain Error
(4)
See Note 5
Gain Error Drift
(6)
1 µV/°C
Common-Mode Rejection
(9)
At DC, +25°C 100 115 dB
At DC, T
MIN
to T
MAX
90 115 dB
50Hz, f
DATA
= 50Hz
(7)
160 dB
60Hz, f
DATA
= 60Hz
(7)
160 dB
Normal-Mode Rejection 50Hz, f
DATA
= 50Hz
(7)
100 dB
60Hz, f
DATA
= 60Hz
(7)
100 dB
Output Noise See Typical Performance Curves
Power Supply Rejection DC, 50Hz, and 60Hz 65 dB
VOLTAGE REFERENCE
Internal Reference (REF
OUT
) 2.4 2.5 2.6 V
Drift 25 ppm/°C
Noise 50 µVp-p
Load Current Source or Sink 1 mA
Output Impedance 2 Ω
External Reference (REF
IN
) 2.0 3.0 V
Load Current 2.5 µA
V
BIAS
Output Using Internal Reference 3.15 3.3 3.45 V
Drift 50 ppm/°C
Load Current Source or Sink 10mA
DIGITAL INPUT/OUTPUT
Logic Family TTL Compatible CMOS
Logic Level: (all except X
IN
)
V
IH
I
IH
= +5µA 2.0 DV
DD
+0.3 V
V
IL
I
IL
= +5µA –0.3 0.8 V
V
OH
I
OH
= 2 TTL Loads 2.4 V
V
OL
I
OL
= 2 TTL Loads 0.4 V
X
IN
Input Levels: V
IH
3.5 DV
DD
+0.3 V
V
IL
–0.3 0.8 V
X
IN
Frequency Range (f
XIN
) 0.5 10 MHz
Output Data Rate (f
DATA
) User Programmable 2.4 15,625 Hz
f
XIN
= 500kHz 0.12 781 Hz
Data Format User Programmable
Two’s Complement
or Offset Binary
SYSTEM CALIBRATION
Offset and Full-Scale Limits V
FS
= Full-Scale Differential Voltage
(8)
0.7 • (2 • REF
IN
)/G
V
FS
– | V
OS
|V
OS
= Offset Differential Voltage
(8)
1.3 • (2 • REF
IN
)/G