6

ADS7835

®

TYPICAL PERFORMANCE CURVES (Cont.)

At TA = +25°C, +VCC = +5V, fSAMPLE = 500kHz, fCLK = 16 • fSAMPLE, and internal +2.5V reference, unless otherwise specified.

Input Frequency (kHz)

75

73

71

69

67

65

63

1

10

100

1000

SIGNAL-TO-NOISE and

SIGNAL-TO-(NOISE + DISTORTION)

vs INPUT FREQUENCY

SINAD

SNR

CHANGE IN SIGNAL-TO-NOISE and

SIGNAL-TO-(NOISE+DISTORTION)

vs TEMPERATURE

20

–40

80

100

–20

0

40

Temperature (

°C)

0.5

0.4

0.3

0.2

0.1

0.0

–0.1

–0.2

–0.3

–0.4

–0.5

60

f

IN = 10kHz, –0.2dB

SINAD

SNR

2.0

1.5

1.0

0.5

0.0

–0.5

–1.0

–1.5

–2.0

–40

–20

0

20

40

60

80

100

f

IN = 10kHz, –0.2dB

SFDR

THD

∗

∗First nine harmonics

of the input frequency

Temperature (

°C)

CHANGE IN SPURIOUS FREE DYNAMIC RANGE

and TOTAL HARMONIC DISTORTION

vs TEMPERATURE

1.0

0.8

0.6

0.4

0.2

0.0

–0.2

0

100

200

300

400

500

600

700

Sample Rate (kHz)

CHANGE IN BIPOLAR OFFSET ERROR

vs SAMPLE RATE

Input Frequency (kHz)

90

85

80

75

70

65

1

10

100

1000

THDT

SFDR

T First nine harmonics

of the input frequency

SPURIOUS FREE DYNAMIC RANGE and

TOTAL HARMONIC DISTORTION

vs INPUT FREQUENCY