THS1215IDW datasheet(5/22 Pages) TI

Part #	THS1215IDW

Description	3.3-V, 12-BIT, 15 MSPS, LOW-POWER ANALOG-TO-DIGITAL CONVERTER WITH POWER DOWN

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ELECTRICAL CHARACTERISTICS

THS1215

SLAS292A – MARCH 2001 – REVISED MARCH 2004

over recommended operating conditions (AV

DD = DVDD = 3.3 V, fs = 15 MHz/50% duty cycle, MODE = 1, 1-V input span,

internal reference, T

min to Tmax) (unless otherwise noted)

DIGITAL INPUTS AND OUTPUTS (all supplies = 3.3 V)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

DIGITAL INPUTS

All other inputs

0.8

× DV

DD

VIH

High level input voltage

CLK

0.8

× AV

DD

V

All other inputs

0.2

× DV

DD

VIL

Low level input voltage

CLK

0.2

× AV

DD

IIH

High level input current

1

µA

IIL

Low level input current

–1

Ci

Input capacitance

5

pF

DIGITAL OUTPUTS

VOH

High level output voltage

Iload = 50 µA

DVDD–0.4

V

VOL

Low level output voltage

Iload = –50 µA

0.4

V

High impedance output current

±1

µA

tr/tf

Rise/fall time

CL = 10 pF

4.5

ns

ANALOG INPUTS

Ci

Switched input capacitance

6

pF

td(ap)

Aperture delay time

2

ns

Aperture uncertainty (jitter)

2

ns

DC leakage current (input =

±FS)

10

µA

POWER SUPPLY (CLK = 15 MHz)

XVDD

Supply voltage (all supplies)

3

3.3

3.6

V

IDD

Supply current active - total

45

53.5

mA

I(analog)

Supply current active - analog

34

mA

I(digital)

Supply current active - digital

11

mA

II(standby)

Standby supply current

CLK = 0 MHz

10

µA

1 µF bypass(1)

770

µs

t(PU)

Power-up time for references from standby

10 µF bypass(1)

6.2

ms

t(PUconv)

Power-up time for valid ADC conversion

1 µF bypass(2)

820

ns

Clock = 15 MHz,

AIN+ and AIN– at Common

148

177

Mode or 1.65 V dc

PD

Power dissipation

mW

Clock = 15 MHz,

167

fin = 3.58 MHz at –1 dBFS

PD(STBY)

Standby power dissipation

CLK = 0 MHz

36

µW

PSRR

Power supply rejection ratio

±0.1

%FS

(1)

Time for reference to recover to 1% of its final voltage level.

(2)

Time for ADC conversions to be accurate to within 0.1% of fullscale.

5

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