AD7091R-8BRUZ-RL7 datasheet(11/41 Pages) ETC2

Numer części	AD7091R-8BRUZ-RL7

Szczegółowy opis	2-/4-/8-Channel, 1 MSPS, Ultralow Power, 12-Bit ADC in 16-/20-/24-Lead TSSOP

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AD7091R-2/AD7091R-4/AD7091R-8

Data Sheet

Figure 7. 8-Channel Pin Configuration

Table 7. 8-Channel Pin Function Descriptions

Pin No.

Mnemonic

Description

1

CS

Chip Select Input. When CS is held low, the serial bus enables and CS frames the output data on the SPI.

2

RESET

Reset. Logic input.

3

VDD

Power Supply Input. The VDD range is from 2.7 V to 5.25 V. Decouple this supply pin to GND.

4

REGCAP

Decoupling Capacitor Pin For Voltage Output from Internal Regulator. Decouple this output pin

separately to GND using a 2.2 μF capacitor.

5

REFIN/REFOUT

Voltage Reference Output, 2.5 V. Decouple this pin to GND. The typical recommended decoupling

capacitor value is 2.2 µF. The user can either access the internal 2.5 V reference or overdrive the internal

reference with the voltage applied to this pin. The reference voltage range for an externally applied

reference is 1.0 V to VDD.

6, 19

GND

Chip Ground. These pins are the ground reference point for all circuitry on the AD7091R-8.

7

MUXOUT

Multiplexer Output. The output of the multiplexer appears at this pin. If no external filtering or buffering

is required, tie this pin directly to the ADCIN pin; otherwise, tie the output of the conditioning network to

the ADCIN pin.

8

VIN0

Analog Input 0. Single-ended analog input. The analog input range is 0 V to VREF.

9

VIN2

Analog Input 2. Single-ended analog input. The analog input range is 0 V to VREF.

10

ALERT/BUSY/GPO0

Alert Output (ALERT). This is a multifunction pin determined by the configuration register. When

functioning as ALERT, this pin is a logic output indicating that a conversion result has fallen outside the

limit of the register settings.

BUSY Output (BUSY). When the ALERT/BUSY/GPO0 pin is configured as a BUSY output, use this pin to

indicate when a conversion is taking place.

General-Purpose Digital Output (GPO0). The pin can also function as a general-purpose digital output.

11

VIN4

Analog Input 4. Single-ended analog input. The analog input range is 0 V to VREF.

12

VIN6

Analog Input 6. Single-ended analog input. The analog input range is 0 V to VREF.

13

VIN7

Analog Input 7. Single-ended analog input. The analog input range is 0 V to VREF.

14

VIN5

Analog Input 5. Single-ended analog input. The analog input range is 0 V to VREF.

15

GPO1

General-Purpose Digital Output.

16

VIN3

Analog Input 3. Single-ended analog input. The analog input range is 0 V to VREF.

17

VIN1

Analog Input 1. Single-ended analog input. The analog input range is 0 V to VREF.

18

ADCIN

ADC Input. This pin allows access to the on-chip track-and-hold. If no external filtering or buffering is

required, tie this pin directly to the MUXOUT pin; otherwise, tie the input of the conditioning network to

the MUXOUT pin.

20

SDI

Serial Data Input Bus. Data to be written to the on-chip control registers is provided on this input. Data is

clocked into the registers on the falling edge of the SCLK input. Provide data MSB first.

21

SDO

Serial Data Output Bus. The conversion output data is supplied to this pin as a serial data stream. The bits are

clocked out on the falling edge of the SCLK input, and 13 SCLK cycles are required to access the data. The

data is provided MSB first.

22

SCLK

Serial Clock. This pin acts as the serial clock input.

23

CONVST

Convert Start Input Signal. Edge triggered logic input. The falling edge of CONVST places the track-and-

hold mode into hold mode and initiates a conversion.

1

2

3

4

5

6

7

8

9

10

12

11

RESET

VDD

REGCAP

MUXOUT

GND

CS

VIN0

VIN2

VIN6

VIN4

ALERT/BUSY/GPO0

20

21

22

23

24

19

18

17

16

15

14

13

CONVST

SCLK

SDO

ADCIN

GND

SDI

VIN1

VIN3

VIN7

VIN5

GPO1

VDRIVE

AD7091R-8

TOP VIEW

(Not to Scale)

REFIN/REFOUT

Rev. 0 | Page 10 of 40

Podobny numer części - AD7091R-8BRUZ-RL7

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	AD7091R-8BRUZ-RL7	861Kb / 42P	2-/4-/8-Channel, 1 MSPS, Ultralow Power, 12-Bit SAR ADC

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Podobny opis - AD7091R-8BRUZ-RL7

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	AD7091R-5	699Kb / 34P	4-Channel, I2C, Ultralow Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP
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	AD7091	448Kb / 20P	1 MSPS, Ultralow Power, 12-Bit ADC in 8-Lead LFCSP REV. A
	AD7091R-2	861Kb / 42P	2-/4-/8-Channel, 1 MSPS, Ultralow Power, 12-Bit SAR ADC
	AD7490	2Mb / 24P	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP REV. A
	AD7490	950Kb / 29P	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP REV. D
	AD7490	673Kb / 28P	16-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 28-Lead TSSOP REV. D
	AD7914	525Kb / 32P	4-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 16-Lead TSSOP REV. C
	AD7924	525Kb / 32P	4-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 16-Lead TSSOP REV. C
	AD7904	525Kb / 32P	4-Channel, 1 MSPS, 8-/10-/12-Bit ADCs with Sequencer in 16-Lead TSSOP REV. C

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AD7091R-8BRUZ-RL7 Arkusz danych(PDF) 11 Page - List of Unclassifed Manufacturers

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