ADS7813

5

SBAS043C

www.ti.com

TYPICAL PERFORMANCE CURVES

At TA = +25°C, fS = 40kHz, VS = +5V, ±10V input range, using internal reference, unless otherwise noted.

SNR AND SINAD vs TEMPERATURE

(f

IN = 1kHz, 0dB)

Temperature (°C)

92

91

90

89

88

87

86

–25

–50

0

25

50

75

100

SINAD

SNR

SFDR AND THD vs TEMPERATURE

(f

IN = 1kHz, 0dB)

Temperature (°C)

106

105

104

103

102

101

100

–106

–105

–104

–103

–102

–101

–100

–25

–50

0

25

50

75

100

THD

SFDR

SIGNAL-TO-(NOISE + DISTORTION)

vs INPUT FREQUENCY (f

IN = 0dB)

Input Signal Frequency (Hz)

90

89

88

87

86

85

84

83

100

1k

10k

20k

FREQUENCY SPECTRUM

(8192 Point FFT; f

IN = 980Hz, 0dB)

020

515

10

Frequency (kHz)

0

–20

–40

–60

–80

–100

–120

–140

FREQUENCY SPECTRUM

(8192 Point FFT; f

IN = 9.8kHz, 0dB)

020

515

10

Frequency (kHz)

0

–20

–40

–60

–80

–100

–120

–140

INTERNAL REFERENCE VOLTAGE

vs TEMPERATURE

Temperature (°C)

2.515

2.510

2.505

2.500

2.495

2.490

2.485

–25

–50

0

25

50

75

100