Datasheet

AD7476/AD7477/AD7478
Rev. F | Page 4 of 24
Parameter A Version
1,2
B Version
1,2
S Version
1,2
Unit Test Conditions/Comments
CONVERSION RATE
Conversion Time 0.8 1.33 1.33 μs max 16 SCLK cycles
Track-and-Hold Acquisition Time 500 500 500 ns max Full-scale step input
350 400 400 ns max Sine wave input ≤ 100 kHz
Throughput Rate 1000 600 600 kSPS max See Serial Interface section
POWER REQUIREMENTS
V
DD
2.35/5.25 2.35/5.25 2.35/5.25 V min/max
I
DD
Digital I/Ps = 0 V or V
DD
Normal Mode (Static) 2 2 2 mA typ V
DD
= 4.75 V to 5.25 V, SCLK on or off
1 1 1 mA typ V
DD
= 2.35 V to 3.6 V, SCLK on or off
Normal Mode (Operational) 3.5 3 3 mA max
V
DD
= 4.75 V to 5.25 V,
f
SAMPLE
= f
SAMPLE
MAX
6
1.6 1.4 1.4 mA max
V
DD
= 2.35 V to 3.6 V,
f
SAMPLE
= f
SAMPLE
MAX
6
Full Power-Down Mode 1 1 1 μA max SCLK off
80 80 80 μA max SCLK on
Power Dissipation
7
Normal Mode (Operational) 17.5 15 15 mW max V
DD
= 5 V, f
SAMPLE
= f
SAMPLE
MAX
6
4.8 4.2 4.2 mW max V
DD
= 3 V, f
SAMPLE
= f
SAMPLE
MAX
6
Full Power-Down 5 5 5 μW max V
DD
= 5 V, SCLK off
3 3 3 μW max V
DD
= 3 V, SCLK off
1
Temperature range for A and B versions is −40°C to +85°C; temperature range for S version is −55°C to +125°C.
2
Operational from V
DD
= 2.0 V.
3
See the Terminology section.
4
Maximum B and S version specifications apply as typical figures when V
DD
= 5.25 V.
5
Guaranteed by characterization.
6
For A version: f
SAMPLE
MAX = 1 MSPS; B and S versions: f
SAMPLE
MAX = 600 kSPS.
7
See the Power vs. Throughput Rate section.