AD7453 Analog Devices, AD7453 Datasheet - Page 4

• Manufacturer Part Number: AD7453
• Description: Pseudo Differential, 555 kSPS, 12-Bit A/D Converter in 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7453

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 555kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOT

AD7453
Parameter
CONVERSION RATE
POWER REQUIREMENTS
1
2
3
4
5
6
7
8
Temperature ranges as follows: A, B versions: –40°C to +85°C.
See
Analog inputs with slew rates exceeding 27 V/µs (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the
converter.
A small dc input is applied to V
The AD7453 is functional with a reference input in the range 100 mV to V
Guaranteed by characterization.
See
Measured with a full-scale dc input.
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
V
I
Power Dissipation
DD
DD
Terminology
Power vs. Throughput Rate
7, 8
Normal Mode (Static)
Normal Mode (Operational)
Full Power-Down Mode
Normal Mode (Operational)
Full Power-Down Mode
section.
IN–
section.
to provide a pseudo ground for V
2
Test Conditions/Comments
1.6 µs with a 10 MHz SCLK
Sine wave input
Full-scale step input
SCLK on or off
V
V
SCLK on or off
V
V
V
V
DD
DD
DD
DD
DD
DD
= 2.7 V to 3.6 V
= 4.75 V to 5.25 V
= 5 V; 1.55 mW typ for 100 kSPS
= 3 V; 0.64 mW typ for 100 kSPS
= 5 V; SCLK on or off
= 3 V; SCLK on or off
IN+
.
Rev. B | Page 4 of 20
DD
.
7
7
A Version
16
250
290
555
2.7/5.25
0.5
1.5
1.2
1
7.25
3.3
5
3
1
B Version
16
250
290
555
2.7/5.25
0.5
1.5
1.2
1
7.25
3.3
5
3
1
Unit
SCLK cycles
ns max
ns max
kSPS max
V min/max
mA typ
mA max
mA max
µA max
mW max
mW max
µW max
µW max