AD7680 Analog Devices, AD7680 Datasheet - Page 8

• Manufacturer Part Number: AD7680
• Manufacturer: Analog Devices

Specifications of AD7680

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 100kSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SOP,SOT

AD7680
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 6. Pin Function Descriptions
Pin No.
SOT-23
1
2
3
4
5
6
N/A
Pin No.
MSOP
1
2, 3
4
5
7
8
6
GND
V
Figure 3. SOT-23 Pin Configuration
V
DD
IN
1
2
3
Mnemonic
V
GND
V
SCLK
SDATA
CS
NC
DD
IN
(Not to Scale)
AD7680
TOP VIEW
SOT-23
6
5
4
Function
Power Supply Input. The V
Analog Ground. Ground reference point for all circuitry on the AD7680. 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
Serial Clock. Logic input. SCLK provides the serial clock for accessing data from this part. This clock
input is also used as the clock source for the AD7680's conversion process.
Data Out. Logic output. The conversion result from the AD7680 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
AD7680 consists of four leading zeros followed by 16 bits of conversion data that are provided MSB
first. This will be followed by four trailing zeroes if CS is held low for a total of 24 SCLK cycles. See the
Serial Interface
Chip Select. Active low logic input. This input provides the dual function of initiating conversions on
the AD7680 and framing the serial data transfer.
No Connect. This pin should be left unconnected.
CS
SDATA
SCLK
section.
Rev. A | Page 8 of 24
DD
range for the AD7680 is from 2.5 V to 5.5 V.
GND
GND
V
Figure 4. MSOP Pin Configuration
V
DD
IN
1
2
3
4
NC = NO CONNECT
(Not to Scale)
AD7680
TOP VIEW
MSOP
8
7
6
5
DD
CS
SDATA
NC
SCLK
.