ADS1255IDB Burr-Brown Corporation, ADS1255IDB Datasheet - Page 5

• Manufacturer Part Number: ADS1255IDB
• Description: Very Low Noise/ 24-Bit Analog-to-Digital Converter
• Manufacturer: Burr-Brown Corporation

NAME
AVDD
AGND
VREFN
VREFP
AINCOM
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
SYNC/PDWN
RESET
DVDD
DGND
XTAL2
XTAL1/CLKIN
CS
DRDY
DOUT
DIN
SCLK
D0/CLKOUT
D1
D2
D3
(1) Schmitt-Trigger digital input.
(2) 5V tolerant digital input.
(3) Leave disconnected if external clock input is applied to XTAL1/CLKIN.
(4) Schmitt-Trigger digital input when the digital I/O is configured as an input.
SYNC, PDWN
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AINCOM
VREFN
VREFP
RESET
AGND
AVDD
DVDD
AIN0
AIN1
10
1
2
3
4
5
6
7
8
9
ADS1255
ADS1255
TERMINAL NO.
—
—
—
—
—
—
10
11
12
13
14
15
16
17
18
19
20
—
—
1
2
3
4
5
6
7
8
9
ADS1256
20
19
18
17
16
15
14
13
12
11
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
D1
D0/CLKOUT
SCLK
DIN
DOUT
DRDY
CS
XTAL1/CLKIN
XTAL2
DGND
Digital input (1)(2) : active low
Digital input (1)(2) : active low
Digital input (1)(2) : active low
Digital output: active low
Digital/Digital input (2)
ANALOG/DIGITAL
ANALOG/DIGITAL
INPUT/OUTPUT
Digital input (1)(2)
Digital input (1)(2)
PIN ASSIGNMENTS
Terminal Functions
Digital output
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Analog input
Digital IO (4)
Digital IO (4)
Digital IO (4)
Digital IO (4)
Digital (3)
Analog
Analog
Digital
Digital
SSOP PACKAGE
(TOP VIEW)
Analog power supply
Analog ground
Negative reference input
Positive reference input
Analog input common
Analog input 0
Analog input 1
Analog input 2
Analog input 3
Analog input 4
Analog input 5
Analog input 6
Analog input 7
Synchronization / power down input
Reset input
Digital power supply
Digital ground
Crystal oscillator connection
Crystal oscillator connection / external clock input
Chip select
Data ready output
Serial data output
Serial data input
Serial clock input
Digital I/O 0 / clock output
Digital I/O 1
Digital I/O 2
Digital I/O 3
SYNC, PDWN
AINCOM
VREFN
VREFP
SBAS288D − JUNE 2003 − REVISED AUGUST 2004
AGND
AVDD
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
10
11
12
13
14
1
2
3
4
5
6
7
8
9
DESCRIPTION
ADS1256
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D3
D2
D1
D0/CLKOUT
SCLK
DIN
DOUT
DRDY
CS
XTAL1/CLKIN
XTAL2
DGND
DVDD
RESET
ADS1255
ADS1256
5