THS1031CPWR datasheet(5/41 Pages) TI

5 / 41 page

THS1031

3-V TO 5.5-V, 10-BIT, 30 MSPS

CMOS ANALOG-TO-DIGITAL CONVERTER

SLAS242E – NOVEMBER 1999 – REVISED MARCH 2002

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating conditions, AVDD = 3 V, DVDD = 3 V,

fs = 30 MSPS/50% duty cycle, MODE = AVDD, 2-V input span from 0.5 V to 2.5 V, external reference,

PGA = 1X, TA = Tmin to Tmax (unless otherwise noted)

analog inputs

PARAMETER

MIN

TYP

MAX

UNIT

VI(AIN)

Analog input voltage

REFBS

REFTS

Switched sampling input capacitance

1.2

Full power bandwidth (– 3 dB)

150

MHz

Ilkg

DC leakage current (input =

± FS)

100

µA

VREF reference voltages

PARAMETER

MIN

TYP

MAX

UNIT

Internal 1-V reference voltage (REFSENSE = VREF)

0.95

1.05

Internal 2-V reference voltage (REFSENSE = AVSS)

1.90

2.10

External reference voltage (REFSENSE = AVDD)

Reference input resistance (REFSENSE = AVDD, MODE = AVDD/2)

Ω

REFTF, REFBF reference voltages

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Differential input voltage (REFTF – REFBF)

Input common mode voltage (REFTF + REFBF)/2

AVDD = 3 V

1.3

1.5

1.7

Input common mode voltage (REFTF + REFBF)/2

AVDD = 5 V

2.5

VREF=1V

AVDD = 3 V

REFTF voltage (MODE = AVDD)

VREF = 1 V

AVDD = 5 V

REFTF voltage (MODE = AVDD)

VREF=2V

AVDD = 3 V

2.5

VREF = 2 V

AVDD = 5 V

3.5

VREF=1V

AVDD = 3 V

REFBF voltage (MODE = AVDD)

VREF = 1 V

AVDD = 5 V

REFBF voltage (MODE = AVDD)

VREF=2V

AVDD = 3 V

0.5

VREF = 2 V

AVDD = 5 V

1.5

Input resistance between REFTF and REFBF

680

Ω

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