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ELECTRICAL CHARACTERISTICS

ADS5287

SBAS428 – JANUARY 2008

Typical values at +25

°C. Minimum and maximum values are measured across the specified temperature range of T

–40

°C to T

otherwise noted.Typical values at +25

°C.

ADS5287

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INTERNAL REFERENCE VOLTAGES

Reference bottom

0.5

V

Reference top

2.5

V

1.95

2.0

2.05

V

Common-mode voltage (internal)

1.425

1.5

1.575

V

±2

mA

EXTERNAL REFERENCE VOLTAGES

Reference bottom

0.4

0.5

0.6

V

Reference top

2.4

2.5

2.6

V

1.9

2.0

2.1

V

ANALOG INPUT

Differential input voltage range

2.0

Differential input capacitance

3

pF

Analog input bandwidth

520

MHz

Analog input common-mode range

DC-coupled input

V

Per input pin per MSPS of sampling

µA/MHz

Analog input common-mode current

2.5

speed

per pin

Recovery from 6dB overload to within 1%

Voltage overload recovery time

1

Clock cycle

accuracy

Standard deviation seen on a periodic

Voltage overload recovery repeatability

first data within full-scale range in a 6dB

1

LSB

overloaded sine wave

DC ACCURACY

Offset error

–1.25

±0.2

+1.25

%FS

±5

ppm/

°C

Channel gain error

Excludes error in internal reference

–0.8

%FS

Channel gain error temperature

Excludes temperature coefficient of

±10

ppm/

°C

coefficient

internal reference

Internal reference error temperature

±15

ppm/

°C

DC PSRR

1.5

mV/V

POWER-DOWN MODES

Power in complete power-down mode

45

mW

Power in partial power-down mode

Clock at 65MSPS

135

mW

Power with no clock

88

mW

DYNAMIC PERFORMANCE

5MHz full-scale signal applied to seven

Crosstalk

channels, measurement taken on channel

–90

dBc

with no input signal

Two-tone, third-order intermodulation

–92

dBFS

distortion

DC ACCURACY

No missing codes

Assured

DNL

Differential nonlinearity

–0.5

±0.1

+0.5

LSB

INL

Integral nonlinearity

–1

±0.1

+1

LSB

(1)

The offset temperature coefficient in ppm/

°C is defined as (O

(2)

(3)

DC PSRR is defined as the ratio of the change in the ADC output (expressed in mV) to the change in supply voltage (in volts).

Copyright © 2008, Texas Instruments Incorporated

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