AN221D04-DEVLP データシートの表示（PDF） - Unspecified

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AN221D04-DEVLP

Dynamically Reconfigurable FPAA With Enhanced I/O

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AN221E04 Datasheet – Dynamically Reconfigurable FPAA With Enhanced I/O

Analog Inputs General

Parameter

Symbol

Min

High Precision Input Range c

Vina

0.5

Standard precision Input Range d

Vina

0.1

High Precision

Differential Input c

Vdiffina

0

Standard Precision

Differential Input d

Vdiffina

0

Common Mode

Input Range

Vcm

1.8

Input Offset

Vos

-

Input Frequency

Fain

0

Typ

Max Unit Comment

-

3.5

V VMR +/- 1.5v

-

3.9

V VMR +/- 1.9v

-

+/-3.0

V

Common mode voltage = 2 V

-

+/-3.8

V

Common mode voltage = 2 V

2.0

2.2

V

5

15

mV Non-chopper stabilized input

Max value is clock, CAM and input

stage dependant. Input frequency

<2

8

MHz

is limited to approx <2MHz due to

CAM signal processing which is

based on sampled data

architectures.

c. High precision operating range provides optimal linearity and dynamic range.

d. Standard precision operating range provides maximum dynamic range and reduced linearity.

Input Differential Amplifier ON and filter OFF

Parameter

Input Range

Gain Setting

Gain Accuracy

Gain Drift (Temperature, Supply

Voltage zand Time)

Equivalent Input Offset Voltage

Symbol

Vina

Vdiffina

Ginamp

Dist

Min Typ Max

See analog input above

16

-

128

-

1.0

2.5

-

-

1.0

Vos

-

3

12

Unit

%

%

mV

Offset Voltage Temperature

Coefficient

Input Frequency c

Input Frequency d

Power Supply Rejection Ratio

Common Mode Rejection Ratio

Large Signal Harmonic Distortion

Input Resistance

Input Capacitance

Input Referred Noise Figure

Voffsettc

Fain

Fain

PSRR

CMRR

Dist

Rin

Cin

NF

-

1

10

0

-

2

0

<2

8

65

-

-

-

67

-

-

-65

-

10

-

-

5.0

µV/°C

MHz

MHz

dB

dB

dB

Mohm

pF

-

0.1

-

µV/sqrtHz

Signal-to Noise Ratio and

Distortion

SINAD

-

75

-

dB

Spurious Free Dynamic Range

SFDR

-

73

-

dB

c. High precision operating range provides optimal linearity and dynamic range.

d. Standard precision operating range provides maximum dynamic range and reduced linearity.

Comment

Usable input range will be reduced

by the effective gain setting

Non-chopper stabilized input

When the input amplifier and filter

are used in combination Vos

contribution comes only from the

input amplifier

from -40°C to 125°C

d.c. Amp Gain =16

a.c. See graphs page 18

0.4v p-p Differential input at 660Hz

Gain setting = 16

Input cell Gain = 16

Applies to audio frequency range

(400Hz to 30KHz).

See graphical data on page 18

Input signal = 285 mV p-p diff,

audio frequency range

See graphical data on page 18

Input signal = 100 mV p-p diff

See graphical data on page 18

DS030100-U006a - 7 -

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