AD7864ASZ-2 Analog Devices Inc, AD7864ASZ-2 Datasheet - Page 12

• Manufacturer Part Number: AD7864ASZ-2
• Description: IC ADC 14BIT DUAL 4CHAN 44-MQFP
• Manufacturer: Analog Devices Inc

Specifications of AD7864ASZ-2

• Data Interface: Parallel
• Number Of Bits: 12
• Sampling Rate (per Second): 520k
• Number Of Converters: 1
• Power Dissipation (max): 120mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP
• Resolution (bits): 12bit
• Sampling Rate: 500kSPS
• Input Channel Type: Single Ended
• Supply Voltage Range - Analog: 4.75V To 5.25V
• Supply Current: 24mA
• Digital Ic Case Style: QFP
• Number Of Elements: 1
• Resolution: 12Bit
• Architecture: SAR
• Sample Rate: 520KSPS
• Input Polarity: Unipolar
• Input Type: Voltage
• Rated Input Volt: 2.5/5V
• Differential Input: No
• Power Supply Requirement: Analog and Digital
• Single Supply Voltage (typ): 5V
• Single Supply Voltage (min): 4.75V
• Single Supply Voltage (max): 5.25V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Power Dissipation: 120mW
• Differential Linearity Error: ±0.9LSB
• Integral Nonlinearity Error: ±1LSB
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: MQFP
• Input Signal Type: Single-Ended
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD7864
nominal source impedance for this output. The tolerance on the
internal reference is ±10 mV at 25°C with a typical temperature
coefficient of 25 ppm/°C and a maximum error overtemperature
of ±20 mV.
If the application requires a reference with a tighter tolerance or
the AD7864 needs to be used with a system reference, the user
Rev. D | Page 12 of 28
has the option of connecting an external reference to this V
pin. The external reference effectively overdrives the internal
reference and thus provides the reference source for the ADC.
The reference input is buffered before being applied to the ADC
with the maximum input current of ±100 μA. Suitable reference
sources for the AD7864 include the AD680, AD780, REF192,
and
REF43
precision 2.5 V references.
REF