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ADS8372

SLAS451 – JUNE 2005

SPECIFICATIONS (continued)

At –40°C to 85°C, +VA = +5 V, +VBD = +5 V or +VBD = +2.7 V, using internal or external reference, f

unless otherwise noted. (All performance parameters are valid only after device has properly resumed from power down,

Table 2.)

ADS8372IB

ADS8372I

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

DYNAMIC CHARACTERISTICS

–116

–106

–116

Total harmonic

THD

–115

–115

dB

–98

–98

92

93.5

93.5

SNR

93.5

93.5

dB

92

92

92

93.5

93.5

Signal-to-noise

SINAD

93.5

93.5

dB

91

91

120

120

Spurious free dynamic

SFDR

120

120

dB

99

99

–3dB Small signal bandwidth

75

75

MHz

REFERENCE INPUT

Reference voltage input range

2.5

4.096

4.2

2.5

4.096

4.2

V

10

10

M

Ω

INTERNAL REFERENCE OUTPUT

Reference voltage range

4.088

4.096

4.104

4.088

4.096

4.104

V

Source current

Static load

10

10

µA

Line regulation

+VA = 4.75 V to 5.25 V

2.5

2.5

mV

Drift

IOUT = 0 A

25

25

ppm/°C

DIGITAL INPUT/OUTPUT

Logic family CMOS

High level input voltage

+VBD – 1

+VBD + 0.3

+VBD – 1

+VBD + 0.3

V

Low level input voltage

–0.3

0.8

–0.3

0.8

V

High level output voltage

+VBD –0.6

+VBD –0.6

V

Low level output voltage

0.4

0.4

V

Data format 2's complement (MSB first)

POWER SUPPLY REQUIREMENTS

+VA

4.75

5

5.25

4.75

5

5.25

V

Power supply

voltage

+VBD

2.7

3.3

5.25

2.7

3.3

5.25

V

Supply current, 600-kHz

+VA = 5 V

22

25

22

25

mA

POWER DOWN

Supply current, power down

2

2

µA

NAP MODE

3

3

mA

Power-up time from nap

300

300

ns

TEMPERATURE RANGE

Specified performance

–40

85

–40

85

°C

(7)

Measured using analog input circuit in Figure 52 and digital stimulus in Figure 56 and Figure 57 and reference voltage of 4.096 V.

(8)

Calculated on the first nine harmonics of the input frequency.

(9)

Can vary +/-30%.

(10) This includes only +VA current. With +VBD = 5 V, +VBD current is typically 1 mA with a 10-pF load capacitance on the digital output

pins.

4

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