AD7781 Analog Devices, AD7781 Datasheet - Page 6

• Manufacturer Part Number: AD7781
• Description: 20-Bit, Pin-Programmable, Ultralow Power Sigma-Delta ADC
• Manufacturer: Analog Devices

Specifications of AD7781

• Resolution (bits): 20bit
• # Chan: 1
• Sample Rate: 16.7SPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip
• Ain Range: ± (Vref/Gain) ,10V p-p,78 mV p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOIC,SOP

AD7781
ABSOLUTE MAXIMUM RATINGS
T
Table 4.
Parameter
AV
DV
Analog Input Voltage to GND
Reference Input Voltage to GND
Digital Input Voltage to GND
Digital Output Voltage to GND
AIN/Digital Input Current
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Lead Temperature, Soldering Reflow
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
A
DD
DD
= 25°C, unless otherwise noted.
to GND
to GND
Rating
−0.3 V to +7 V
−0.3 V to +7 V
−0.3 V to AV
−0.3 V to AV
−0.3 V to DV
−0.3 V to DV
10 mA
−40°C to +105°C
−65°C to +150°C
150°C
260°C
DD
DD
DD
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
Rev. 0 | Page 6 of 16
THERMAL RESISTANCE
θ
soldered in a circuit board for surface-mount packages.
Table 5.
Package Type
14-Lead SOIC
16-Lead TSSOP
ESD CAUTION
JA
is specified for the worst-case conditions, that is, a device
θ
104.5
150.4
JA
θ
42.9
27.6
JC
Unit
°C/W
°C/W