Ordering Information
Order Code
Temperature Range
Description
Top Mark
X01A
X02A
X03A
X01A
X1A
ADCS7476AIMF
ADCS7477AIMF
ADCS7478AIMF
ADCS7476AIMFX
ADCS7476AISDX
ADCS7477AIMFX
ADCS7477AISDX
ADCS7478AIMFX
ADCS7478AISDX
ADCS7476AIMFE
ADCS7477AIMFE
ADCS7478AIMFE
−40°C to +125°C
−40°C to +85°C
−40°C to +85°C
−40°C to +125°C
−40°C to +125°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
6-Lead SOT-23 Package, 1000 Units Tape & Reel
6-Lead SOT-23 Package, 1000 Units Tape & Reel
6-Lead SOT-23 Package, 1000 Units Tape & Reel
6-Lead SOT-23 Package, 3000 Units Tape & Reel
6-Lead LLP, 3000 Units Tape & Reel
6-Lead SOT-23 Package, 3000 Units Tape & Reel
6-Lead LLP, 3000 Units Tape & Reel
X02A
X2A
6-Lead SOT-23 Package, 3000 Units Tape & Reel
6-Lead LLP, 3000 Units Tape & Reel
X03A
X3A
6-Lead SOT-23 Package, 250 Units Tape & Reel
6-Lead SOT-23 Package, 250 Units Tape & Reel
6-Lead SOT-23 Package, 250 Units Tape & Reel
X01A
X02A
X03A
Pin Descriptions
Pin No.
ANALOG I/O
3
Symbol
Description
VIN
Analog input. This signal can range from 0V to VDD.
DIGITAL I/O
Digital clock input. The range of frequencies for this input is 10 kHz to 20 MHz, with guaranteed
performance at 20 MHz. This clock directly controls the conversion and readout processes.
4
SCLK
5
SDATA
CS
Digital data output. The output words are clocked out of this pin by the SCLK pin.
Chip select. A conversion process begins on the falling edge of CS.
6
POWER SUPPLY
Positive supply pin. These pins should be connected to a quiet +2.7V to +5.25V source and
bypassed to GND with 0.1 µF and 1 µF monolithic capacitors located within 1 cm of the power
pin. The ADCS7476/77/78 uses this power supply as a reference, so it should be thoroughly
bypassed.
VDD
1
2
GND
The ground return for the supply.
Block Diagram
20057718
www.national.com
2