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 Outputs

(See “Output Cell” section in the AN120E04/AN220E04 user manual for more details)

Parameter

Symbol

Min

Typ

Max

High Precision Output Range c

Vouta

0.5

-

3.5

Standard Precision Output

Range d

Vouta

0.1

-

3.9

High Precision

Differential Output c

Vdiffouta

-

-

+/-3.0

Standard precision

Differential Output d

Vdiffouta

-

-

+/-3.8

Common Mode

Voltage

Vcm

1.9

2.0

2.1

Unit

V

V

V

V

Comment

VMR +/- 1.5v

VMR +/- 1.9v

Common mode voltage = 2 V

Common mode voltage = 2 V

V

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

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

Output Voltage mode and filter ON, corner frequency 470KHz

Parameter

Input Range

Equivalent Input Offset

Symbol

Vina

Vdiffina

Vos

Min

Typ Max

See analog input above

-

5

15

Offset Voltage Temperature

Coefficient

Voffsettc

0.05 I 1.0 II

Output Frequency

Faout

-

-

-

Power Supply Rejection Ratio

PSRR

60

Large Signal Harmonic Distortion

Dist

-

Input Low Pass Filter (Anti-Alias)

Corner Frequency Settings

Ffiltcorner

76

Output Load c e

Rload

0.1

Output Load c e

Cload

-

Output Load d e

Rload

1

-

-

-82

-

-

470

-

-

-

50

10

-

Output Load d e

Common Mode Rejection Ratio

Input Referred Noise Figure

Signal-To Noise Ratio and

Distortion

Spurious Free Dynamic Range

Cload

CMRR

NF

SINAD

SFDR

-

-

100

-

56

-

-

0.22

-

-

82

-

-

90

-

Unit

Comment

V

mV

mV/°C

MHz

dB

dB

KHz

Mohm

pF

Kohm

pF

dB

µV/sqrtHz

dB

dB

from -40°C to 125°C

I measured at filter corner: 470Khz

II maximum at filter corner: 76KHz

Output filter frequency will define

the maximum frequency

Input filter is recommended to be

>30x higher then the max input

frequency, for good distortion

performance

d.c.

a.c. See graphical data on page 19

4v p-p Differential input at 660Hz

Filter corner frequency 470KHz

Additional loading causes internal

voltage drops across output stage

and series resistances

The output stage has a small

signal output impedance of approx

10ohm

Output filter corner fc = 470KHz

Applies to Audio frequency range

See graphical data on page 18

Input signal = 1400 mV p-p diff,

Audio frequency range

See graphical data on page 18

Input signal =1400 mV p-p diff

See graphical data on page 18

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

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

e. The maximum load for an analog output is 50 pF // 100 Kohms. This load maybe with respect to analog ground VMR or AVSS.

DS030100-U006a - 10 -

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