Datasheet

5
ADCS7476 , ADCS7477 , ADCS7478
www.ti.com SNAS192G –APRIL 2003–REVISED MAY 2016
Product Folder Links: ADCS7476 ADCS7477 ADCS7478
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(1) Data sheet minimum and maximum specification limits are ensured by design, test, or statistical analysis.
6.5 Electrical Characteristics – ADCS7476
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
STATIC CONVERTER CHARACTERISTICS
Resolution with no missing codes V
DD
= 2.7 V to 3.6 V, –40°C ≤ T
A
≤ 125°C 12 Bits
INL Integral non-linearity
V
DD
= 2.7 V to 3.6 V
T
A
= 25°C ±0.4
LSB
–40°C ≤ T
A
≤ 85°C ±1
V
DD
= 2.7 V to 3.6 V, T
A
= 125°C –1.1 1 LSB
DNL Differential non-linearity
V
DD
= 2.7 V to 3.6 V
T
A
= 25°C –0.3 0.5
LSB
–40°C ≤ T
A
≤ 85°C –0.9 1
V
DD
= 2.7 V to 3.6 V, T
A
= 125°C ±1 LSB
V
OFF
Offset error V
DD
= 2.7 V to 3.6 V
T
A
= 25°C ±0.1
LSB
−40°C ≤ T
A
≤ 125°C ±1.2
GE Gain error V
DD
= 2.7 V to 3.6 V
T
A
= 25°C ±0.2
LSB
–40°C ≤ T
A
≤ 125°C ±1.2
DYNAMIC CONVERTER CHARACTERISTICS
SINAD Signal-to-noise plus distortion ratio f
IN
= 100 kHz
T
A
= 25°C 72
dB
–40°C ≤ T
A
≤ 125°C 70
SNR Signal-to-noise ratio
f
IN
= 100 kHz
T
A
= 25°C 72.5
dB
–40°C ≤ T
A
≤ 85°C 70.8
f
IN
= 100 kHz, T
A
= 125°C 70.6 dB
THD Total harmonic distortion f
IN
= 100 kHz –80 dB
SFDR Spurious-free dynamic range f
IN
= 100 kHz 82 dB
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 µA
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 µW
ANALOG INPUT CHARACTERISTICS
V
IN
Input range 0 to V
DD
V
I
DCL
DC leakage current –40°C ≤ T
A
≤ 85°C ±1 µA
C
INA
Analog input capacitance 30 pF
DIGITAL INPUT CHARACTERISTICS