AD7457BRT-R2(Rev0) Просмотр технического описания (PDF) - Analog Devices

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AD7457BRT-R2
(Rev.:Rev0)

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

Analog Devices 

AD7457

Parameter

Test Conditions/Comments

B Version1

Unit

POWER REQUIREMENTS

VDD

IDD7,8

During Conversion6

Normal Mode (Static)

Normal Mode (Operational)

Power-Down

Power Dissipation

Normal Mode (Operational)

Power-Down

VDD = 4.75 V to 5.25 V

VDD = 2.7 V to 3.6 V

SCLK on or off

VDD = 4.75 V to 5.25 V

VDD= 2.7 V to 3.6 V

SCLK on or off

VDD = 5 V

VDD = 3 V

VDD = 5 V; SCLK on or off

VDD = 3 V; SCLK on or off

2.7/5.25

1.5

1.2

0.5

0.7

0.33

1

3

0.9

5

3

V min/max

mA max

mA max

mA typ

mA max

mA max

µA max

mW max

mW max

µW max

µW max

1Temperature ranges as follows: B version: −40°C to +85°C.

2 See Terminology section.

3Analog 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 in the range 100 mV to VDD.

6 Guaranteed by characterization.

7 See Power Consumption section.

8 Measured with a full-scale dc input.

Rev. 0 | Page 4 of 20

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