AD7476ART Analog Devices, AD7476ART Datasheet - Page 6

• Manufacturer Part Number: AD7476ART
• Description: 1 MSPS/ 12-/10-/8-Bit ADCs in 6-Lead SOT-23
• Manufacturer: Analog Devices

AD7476/AD7477/AD7478
Pin
No.
1
2
3
4
5
6
Model
AD7476ART
AD7476BRT
AD7476SRT
AD7477ART
AD7477SRT
AD7478ART
EVAL-AD7476CB
EVAL-AD7477CB
EVAL-CONTROL BOARD
NOTES
1
2
3
4
Linearity Error here refers to integral linearity error.
RT = SOT-23.
This can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BOARD for evaluation/demonstration purposes.
This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
Pin
Mnemonic
V
GND
V
SCLK
SDATA
CS
DD
IN
3
3
4
Function
Power Supply Input. The V
Analog Ground. Ground reference point for all circuitry on the AD7476/AD7477/AD7478. All analog
input signals should be referred to this GND voltage.
Analog Input. Single-ended analog input channel. The input range is 0 to V
Serial Clock. Logic input. SCLK provides the serial clock for accessing data from the part. This clock
input is also used as the clock source for the AD7476/AD7477/AD7478’s conversion process.
Data Out. Logic output. The conversion result from the AD7476/AD7477/AD7478 is provided on
this output as a serial data stream. The bits are clocked out on the falling edge of the SCLK input. The
data stream from the AD7476 consists of four leading zeros followed by the 12 bits of conversion data
which is provided MSB first; the data stream from the AD7477 consists of four leading zeros followed
by the 10 bits of conversion data, followed by two trailing zeros, which is also provided MSB first; the
data stream from the AD7478 consists of four leading zeros followed by the 8 bits of conversion data,
followed by four trailing zeros, which is provided MSB first.
Chip Select. Active low logic input. This input provides the dual function of initiating conversions on
the AD7476/AD7477/AD7478 and framing the serial data transfer.
Temperature
Range
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
–40°C to +85°C
–55°C to +125°C
–40°C to +85°C
PIN FUNCTION DESCRIPTIONS
PIN CONFIGURATION
GND
V
V
DD
ORDERING GUIDE
IN
DD
1
2
3
(Not to Scale)
range for the AD7476/AD7477/AD7478 is from 2.35 V to 5.25 V.
TOP VIEW
AD7476/
AD7477/
AD7478
Linearity
Error (LSB)
± 1 typ
± 1.5 max
± 1.5 max
± 1 max
± 1 max
± 0.5 max
6
5
4
CS
SDATA
SCLK
1
Package
Option
RT-6
RT-6
RT-6
RT-6
RT-6
RT-6
2
DD
.
Branding
Information
CEA
CEB
CES
CFA
CFS
CJA