Datasheet

"#$%
SBVS070B − JUNE 2006 − REVISED MAY 2009
www.ti.com
7
TYPICAL CHARACTERISTICS (Continued)
At T
A
= +25°C and V
DD1
= V
DD2
= +5V with external 100kHz filter BW, unless otherwise noted.
20
16
12
8
4
0
−
4
−
8
−
12
−
16
−
20
−
25 25 75
−
50
Input V
OS
(
µ
V)
0 50 100 125 150
DIFFERENTIAL AMPLIFIER:
OFFSET VOLTAGE vs TEMPERATURE, RTO
Te m p e r a t u r e (
_
C)
Sample Average
20
15
10
5
0
−
5
−
10
−
15
−
20
10
Gain (dB)
100 1k 10k 100k 1M 10M
DIFFERENTIAL AMPLIFIER:
GAIN vs FREQUENCY
Frequency (Hz)
120
100
80
60
40
20
0
10 100 1k 10k 100k 1M
PSRR and CMRR (dB)
Frequency (Hz)
2M
CMRR
PSRR
DIFFERENTIAL AMPLIFIER:
PSRR AND CMRR vs FREQUENCY
DIFFERENTIAL AMPLIFIER:
OUTPUT VOLTAGE vs OUTPUT CURRENT
5.0
4.9
4.8
4.7
0.3
0.2
0.1
0
012345678910
Load Current (mA)
Output Voltage (V)
−
40
_
C
+85
_
C
+125
_
C
−
40
_
C
+25
_
C
+85
_
C
+125
_
C
+25
_
C
1000
100
10
100
Noise Density (nV/
√
Hz)
1k 10k 100k 1M
DIFFERENTIAL AMPLIFIER:
OUTPUT NOISE DENSITY
Frequency (Hz)
Autozero Frequency = 69kHz
Sensor Not Running
e
n
= 162nV/
√
Hz (average over 250Hz to 50kHz)
25
20
15
10
5
0
−
5
−
10
−
15
−
20
−
25
−
25
−
50
Short−Circuit Current (mA)
0 255075100125150
DIFFERENTIAL AMPLIFIER:
SHORT−CIRCUIT CURRENT vs TEMPERATURE
Temperature (
_
C)
V
OUT
Shortedto0V
V
OUT
Shortedto5V