Datasheet

0
25
50
75
100
125
150
175
200
−40 −30 −20 −10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Leakage Current (pA)
Input Voltage = 2.5 V
Data Rate = 250 SPS to 8 kSPS
G007
80
85
90
95
100
105
110
115
120
10 100 1000
Frequency (Hz)
Power−Supply Rejection Ratio (dB)
G = 1
G = 2
G = 4
G = 6
G = 8
G = 12
G = 24
G008
−135
−130
−125
−120
−115
−110
−105
−100
10 100 1000
Frequency (Hz)
CMRR (dB)
Gain = 1
Gain = 2
Gain = 4
Gain = 6
Gain = 8
Gain = 12
Gain = 24
Data Rate = 4 kSPS
A
IN
= AVDD − 0.3 V to AVSS + 0.3 V
G005
0
50
100
150
200
250
300
350
400
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Input Voltage (V)
Input Leakage Current (pA)
Data Rate = 250 SPS to 8 kSPS
Data Rate = 16 kSPS
G006
−0.5 −0.4 −0.3 −0.2 −0.1
0
0.1 0.2 0.3 0.4 0.5
−0.5 −0.4 −0.3 −0.2 −0.1
0
0.1 0.2 0.3 0.4 0.5
0
100
200
300
400
500
600
700
800
Input−Referred Noise (µV)
Occurences
Gain = 24
G004
−0.5
−0.4
−0.3
−0.2
−0.1
0
0.1
0.2
0.3
0.4
0.5
1 2 3 4 5 6 7 8 9 10
Time (s)
Input−Referred Noise (µV)
Gain = 24
G003
ADS1299
www.ti.com SBAS499A –JULY 2012–REVISED AUGUST 2012
TYPICAL CHARACTERISTICS
All plots are at T
A
= +25°C, AVDD = 5 V, AVSS = 0 V, DVDD = 3.3 V, internal VREFP = 4.5 V, VREFN = AVSS, external
clock = 2.048 MHz, data rate = 250 SPS, and gain = 12, unless otherwise noted.
INPUT-REFERRED NOISE NOISE HISTOGRAM
Figure 3. Figure 4.
COMMON-MODE REJECTION RATIO vs FREQUENCY LEAKAGE CURRENT vs INPUT VOLTAGE
Figure 5. Figure 6.
LEAKAGE CURRENT vs TEMPERATURE PSRR vs FREQUENCY
Figure 7. Figure 8.
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