AD7468 Analog Devices, AD7468 Datasheet - Page 12

• Manufacturer Part Number: AD7468
• Description: 1.6 V Micro-Power 8-Bit ADC
• Manufacturer: Analog Devices

Specifications of AD7468

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 200kSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: SOP,SOT

AD7466/AD7467/AD7468
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 6. Pin Function Descriptions
SOT-23
6
1
2
3
5
4
Pin No.
MSOP
1
8
7
6
2
3
4, 5
Figure 4. SOT-23 Pin Configuration
GND
V
V
DD
IN
Mnemonic
CS
V
GND
V
SDATA
SCLK
NC
1
2
3
DD
IN
(Not to Scale)
AD7466/
AD7467/
AD7468
TOP VIEW
Description
Chip Select. Active low logic input. This input provides the dual function of initiating conversions on the
devices and frames the serial data transfer.
Power Supply Input. The V
Analog Ground. Ground reference point for all circuitry on the devices. All analog input signals should
be referred to this GND voltage.
Analog Input. Single-ended analog input channel. The input range is 0 V to V
Data Out. Logic output. The conversion result from the AD7466/AD7467/AD7468 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 AD7466 consists of four leading zeros followed by the 12 bits of conversion data,
provided MSB first. The data stream from the AD7467 consists of four leading zeros followed by the 10
bits of conversion data, provided MSB first. The data stream from the AD7468 consists of four leading
zeros followed by the 8 bits of conversion data, provided MSB first.
Serial Clock. Logic input. SCLK provides the serial clock for accessing data from the parts. This clock
input is also used as the clock source for the conversion process of the parts.
No Connect.
6
5
4
CS
SDATA
SCLK
Rev. C | Page 12 of 28
DD
range for the devices is from 1.6 V to 3.6 V.
SDATA
Figure 5. MSOP Pin Configuration
SCLK
NC
CS
1
2
3
4
NC = NO CONNECT
(Not to Scale)
AD7466/
AD7467/
AD7468
TOP VIEW


DD
8
7
6
5
.
V
GND
V
NC
DD
IN