Datasheet

7
ADCS7476 , ADCS7477 , ADCS7478
www.ti.com SNAS192G –APRIL 2003–REVISED MAY 2016
Product Folder Links: ADCS7476 ADCS7477 ADCS7478
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Electrical Characteristics – ADCS7477 (continued)
T
A
= 25°C, V
DD
= 2.7 V to 5.25 V, f
SCLK
= 20 MHz, and f
SAMPLE
= 1 MSPS (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IMD
Intermodulation distortion,
second order terms
f
a
= 103.5 kHz, f
b
= 113.5 kHz –78 dB
Intermodulation distortion,
third order terms
f
a
= 103.5 kHz, f
b
= 113.5 kHz –78 dB
FPBW –3-dB full power bandwidth
5-V supply 11 MHz
3-V supply 8 MHz
POWER SUPPLY CHARACTERISTICS
I
DD
Normal mode (static)
V
DD
= 4.75 V to 5.25 V, SCLK On or Off 2 mA
V
DD
= 2.7 V to 3.6 V, SCLK On or Off 1 mA
Normal mode (operational)
V
DD
= 4.75 V to 5.25 V,
f
SAMPLE
= 1 MSPS
T
A
= 25°C 2
mA
–40°C ≤ T
A
≤ 85°C 3.5
V
DD
= 2.7 V to 3.6 V,
f
SAMPLE
= 1 MSPS
T
A
= 25°C 0.6
mA
–40°C ≤ T
A
≤ 85°C 1.6
Shutdown mode
V
DD
= 5 V, SCLK Off 0.5
µA
V
DD
= 5 V, SCLK On 60
P
D
Power consumption,
normal mode (operational)
V
DD
= 5 V,
f
SAMPLE
= 1 MSPS
T
A
= 25°C 10
mW
–40°C ≤ T
A
≤ 85°C 17.5
V
DD
= 3 V,
f
SAMPLE
= 1 MSPS
T
A
= 25°C 2
mW
–40°C ≤ T
A
≤ 85°C 4.8
Power consumption,
shutdown mode
V
DD
= 5 V, SCLK Off 2.5
µW
V
DD
= 3 V, SCLK Off 1.5
ANALOG INPUT CHARACTERISTICS
V
IN
Input range 0 to V
DD
V
I
DCL
DC leakage current T
A
= −40°C to 85°C ±1 µA
C
INA
Analog input capacitance 30 pF
DIGITAL INPUT CHARACTERISTICS
V
IH
Input high voltage T
A
= −40°C to 85°C 2.4 V
V
IL
Input low voltage
V
DD
= 5 V, –40°C ≤ T
A
≤ 85°C 0.8 V
V
DD
= 3 V, –40°C ≤ T
A
≤ 85°C 0.4 V
I
IN
Input current V
IN
= 0 V or V
DD
T
A
= 25°C ±10 nA
–40°C ≤ T
A
≤ 85°C ±1 µA
C
IND
Digital input capacitance
T
A
= 25°C 2
pF
–40°C ≤ T
A
≤ 85°C 4
DIGITAL OUTPUT CHARACTERISTICS
V
OH
Output high voltage
I
SOURCE
= 200 µA, V
DD
= 2.7 V to 5.25 V,
–40°C ≤ T
A
≤ 85°C
V
DD
– 0.2 V
V
OL
Output low voltage I
SINK
= 200 µA, –40°C ≤ T
A
≤ 85°C 0.4 V
I
OL
TRI-STATE leakage current –40°C ≤ T
A
≤ 85°C ±10 µA
C
OUT
TRI-STATE output capacitance
T
A
= 25°C 2
pF
–40°C ≤ T
A
≤ 85°C 4
Output coding Straight (natural) binary
AC ELECTRICAL CHARACTERISTICS
f
SCLK
Clock frequency –40°C ≤ T
A
≤ 85°C 20 MHz
DC SCLK duty cycle –40°C ≤ T
A
≤ 85°C 40% 60%
t
TH
Track or hold acquisition time –40°C ≤ T
A
≤ 85°C 400 ns
f
RATE
Throughput rate –40°C ≤ T
A
≤ 85°C 1 MSPS
t
AD
Aperture delay 3 ns