AD7810 Analog Devices, AD7810 Datasheet - Page 4

• Manufacturer Part Number: AD7810
• Description: 2.7 V to 5.5 V, 2 ms, 10-Bit ADC in 8-Lead microSOIC/DIP
• Manufacturer: Analog Devices

Specifications of AD7810

• Resolution (bits): 10bit
• # Chan: 1
• Sample Rate: 350kSPS
• Interface: Ser
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p
• Adc Architecture: SAR
• Pkg Type: DIP,SOIC,SOP

AD7810
Pin No.
1
2
3
4
5
6
7
8
Typical Performance Characteristics
0.01
0.1
10
1
0
Figure 2. Power vs. Throughput
Mnemonic
CONVST
V
V
GND
V
D
SCLK
V
IN+
IN–
REF
DD
10
OUT
THROUGHPUT – kSPS
20
Description
Convert Start. Falling edge puts the track-and-hold into hold mode and initiates a conversion.
A rising edge on the CONVST pin enables the serial port of the AD7810. This is useful in multi-
package applications where a number of devices share the same serial bus. The state of this pin at
the end of conversion also determines whether the part is powered down or not. See Operating
Modes section of this data sheet.
Positive input of the pseudo differential analog input.
Negative input of the pseudo differential analog input.
Ground reference for analog and digital circuitry.
External reference is connected here.
Serial data is shifted out on this pin.
Serial Clock. An external serial clock is applied here.
Positive Supply Voltage 2.7 V to 5.5 V.
30
40
PIN FUNCTION DESCRIPTIONS
CONVST
PIN CONFIGURATION
50
GND
V
V
IN
IN
+
–
1
2
3
4
DIP/SOIC
(Not to Scale)
TOP VIEW
AD7810
–4–
8
7
6
5
V
SCLK
D
V
DD
REF
OUT
–115
–15
–35
–55
–75
–95
Figure 3. AD7810 SNR
FREQUENCY BINS
2048 POINT FFT
SAMPLING 357.142kSPS
F
IN
= 30kHz
REV. B