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ADS8370

SLAS450 – 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

SAMPLE = 600 kHz,

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

Table 2.)

ADS8370IB

ADS8370I

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

MIN

TYP

MAX

DYNAMIC CHARACTERISTICS

VIN = 4 Vp-p at 1 kHz

–112

–111

Total harmonic

THD

VIN = 4 Vp-p at 10 kHz

–111

–111

dB

distortion(7)(8)

VIN = 4 Vp-p at 100 kHz

–92

–92

VIN = 4 Vp-p at 1 kHz

89.5

89.5

SNR

Signal-to-noise ratio(7)

VIN = 4 Vp-p at 10 kHz

89.5

89

dB

VIN = 4 Vp-p at 100 kHz

89.5

88.5

VIN = 4 Vp-p at 1 kHz

89.5

89.5

Signal-to-noise

SINAD

VIN = 4 Vp-p at 10 kHz

89.5

89

dB

+ distortion(7)(8)

VIN = 4 Vp-p at 100 kHz

87.5

87

VIN = 4 Vp-p at 1 kHz

119

119

Spurious free dynamic

SFDR

VIN = 4 Vp-p at 10 kHz

117

117

dB

range(7)

VIN = 4 Vp-p at 100 kHz

92

92

–3dB Small signal bandwidth

75

75

MHz

REFERENCE INPUT

Vref

Reference voltage input range

2.5

4.096

4.2

2.5

4.096

4.2

V

Resistance(9)

10

10

M

Ω

INTERNAL REFERENCE OUTPUT

Vref

Reference voltage range

IOUT = 0 A, TA = 30°C

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

VIH

High level input voltage

+VBD – 1

+VBD + 0.3

+VBD – 1

+VBD + 0.3

V

VIL

Low level input voltage

–0.3

0.8

–0.3

0.8

V

VOH

High level output voltage

IOH = 2 TTL loads

+VBD –0.6

+VBD –0.6

V

VOL

Low level output voltage

IOL = 2 TTL loads

0.4

0.4

V

Data format: MSB first, 2's complement or straight binary (selectable via the SB/2C pin)

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

ICC

+VA = 5 V

22

25

22

25

mA

sample rate(10)

POWER DOWN

ICC(PD)

Supply current, power down

2

2

µA

NAP MODE

ICC(NAP) Supply current, 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 51 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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