TPS7A39
ZHCSGP0A –JULY 2017–REVISED SEPTEMBER 2017
www.ti.com.cn
Typical Characteristics (接下页)
at TJ = 25°C, VINP = VOUTP(nom) + 1.0 V or VIN = 3.3 V (whichever is greater), VINN = VOUTN(nom) – 1 V or –3.3 V (whichever is
less), VEN = VIN, IOUT = 1 mA, CIN = 10-μF ceramic, COUT = 10-μF ceramic, and CFFP = CFFN = CNR/SS = 10 nF (unless otherwise
noted)
100
80
60
40
20
0
100
80
60
40
20
0
CFF = 0 nF
CFF = 10 nF
CFF = 100 nF
CFFN = 0 nF
CFFN = 10 nF
CFFN = 100 nF
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
VOUTP = 5 V, VINP = VEN = 6 V, VOUTN = –5 V, IOUTN = 0 mA,
CNR/SS = 10 nF
VOUTP = 5 V, IOUTP = 0 mA, VINN = –6 V, VOUTN = –5 V,
CNR/SS = CFFP = 10 nF
图 8. Positive PSRR vs Frequency and CFFP
图 9. Negative PSRR vs Frequency and CFFN
100
100
80
60
80
60
40
40
CNR/SS = 0 nF
CNR/SS = 10 nF
CNR/SS = 0 nF
CNR/SS = 10 nF
20
20
CNR/SS = 100 nF
CNR/SS = 100 nF
CNR/SS = 1000 nF
0
CNR/SS = 1000 nF
0
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
VOUTP = 5 V, VINP = VEN = 6 V, VOUTN = –5 V, IOUTN = 0 mA,
CFFx = 10 nF
VOUTP = 5 V, IOUTP = 0 mA, VINN = –6 V, VOUTN = –5 V,
CFFx = 10 nF
图 10. Positive PSRR vs Frequency and CNR/SS
图 11. Negative PSRR vs Frequency and CNR/SS
100
100
80
60
40
20
80
60
40
20
IOUT = 150 mA
0
IOUT = 150 mA
0
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
图 12. Crosstalk Positive to Negative
图 13. Crosstalk Negative to Positive
10
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