AD7457BRT-R2 datasheet(5/21 Pages) AD

Il numero della parte	AD7457BRT-R2

Spiegazioni elettronici	Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23

PDF	21 Pages

Scroll/Zoom	100%

Produttore elettronici	AD [Analog Devices]

Homepage	http://www.analog.com

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5 / 21 page

AD7457

Rev. A | Page 4 of 20

Parameter

Test Conditions/Comments

B Version1

Unit

POWER REQUIREMENTS

VDD

2.7/5.25

V min/max

IDD7, 8

During Conversion6

VDD = 4.75 V to 5.25 V

1.5

mA max

VDD = 2.7 V to 3.6 V

1.2

mA max

Normal Mode (Static)

SCLK on or off

0.5

mA typ

Normal Mode (Operational)

VDD = 4.75 V to 5.25 V

0.7

mA max

VDD= 2.7 V to 3.6 V

0.33

mA max

Power-Down

SCLK on or off

µA max

Power Dissipation

Normal Mode (Operational)

VDD = 5 V

mW max

VDD = 3 V

0.9

mW max

Power-Down

VDD = 5 V; SCLK on or off

µW max

VDD = 3 V; SCLK on or off

µW max

1 Temperature range for B version: −40°C to +85°C.

2 See the

section.

Terminology

3 Analog inputs with slew rates exceeding 27 V/µs (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the

converter.

4 A dc input is applied to VIN– to provide a pseudo ground for VIN+.

5 The AD7457 is functional with a reference input range of 100 mV to VDD.

6 Guaranteed by characterization.

7 See the

section.

Power Consumption

8 Measured with a full-scale dc input.

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