AD7478A Analog Devices, AD7478A Datasheet - Page 3

• Manufacturer Part Number: AD7478A
• Description: 8-Bit, 1 MSPS, Low-Power A/D Converter in SC70 and MSOP Packages
• Manufacturer: Analog Devices

Specifications of AD7478A

• Resolution (bits): 8bit
• # Chan: 1
• Sample Rate: 1.2MSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SC70,SOP

SPECIFICATIONS
AD7476A SPECIFICATIONS
V
Table 1.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
LOGIC INPUTS
DD
Signal-to-Noise + Distortion (SINAD)
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise (SFDR)
Intermodulation Distortion (IMD)
Aperture Delay
Aperture Jitter
Full Power Bandwidth
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Total Unadjusted Error (TUE)
Input Voltage Range
DC Leakage Current
Input Capacitance
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Current, I
Input Capacitance, C
= 2.35 V to 5.25 V, f
Third-Order Terms
Second-Order Terms
3, 5
3, 5
IN
IN
, SCLK Pin
, CS Pin
INL
IN
3
INH
SCLK
6
= 20 MHz, f
3
3, 5
3
3
3
SAMPLE
3
A Grade
70
69
71.5
69
68
71
70
70
69
–80
–82
–84
–84
10
30
13.5
2
12
±0.75
±0.75
±1.5
±1.5
0 to V
±0.5
20
2.4
1.8
0.8
0.4
±0.5
±10
5
= 1 MSPS, T
DD
2
B Grade
70
69
71.5
69
68
71
70
70
69
–80
–82
–84
–84
10
30
13.5
2
12
±1.5
–0.9/+1.5
±1.5
±0.2
±1.5
±0.5
±2
0 to V
±0.5
20
2.4
1.8
0.8
0.4
±0.5
±10
5
A
= T
Rev. F | Page 3 of 28
DD
MIN
2
to T
Y Grade
70
69
71.5
69
68
71
70
70
69
–80
–82
–84
–84
10
30
13.5
2
12
±1.5
–0.9/+1.5
±1.5
±0.2
±1.5
±0.5
±2
0 to V
±0.5
20
2.4
1.8
0.8
0.4
±0.5
±10
5
MAX
DD
, unless otherwise noted.
2
Unit
dB min
dB min
dB typ
dB min
dB min
dB min
dB min
dB min
dB min
dB typ
dB typ
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
Bits
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
V
μA max
pF typ
V min
V min
V max
V max
μA max
nA typ
pF max
AD7476A/AD7477A/AD7478A
Test Conditions/Comments
f
V
V
V
V
V
V
V
V
V
fa = 100.73 kHz, fb = 90.72 kHz
fa = 100.73 kHz, fb = 90.72 kHz
@ 3 dB
@ 0.1 dB
B and Y grades
Guaranteed no missed codes to 12 bits
Track-and-hold in track; 6 pF typ when in hold
V
V
V
Typically 10 nA, V
IN
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 100 kHz sine wave
= 2.35 V to 3.6 V, T
= 2.4 V to 3.6 V
= 2.35 V to 3.6 V
= 4.75 V to 5.25 V, T
= 4.75 V to 5.25 V
= 2.35 V to 3.6 V, T
= 2.4 V to 3.6 V
= 4.75 V to 5.25 V, T
= 4.75 V to 5.25 V
= 2.35 V
= 5 V
= 3 V
1
4
IN
= 0 V or V
A
A
A
A
= 25°C
= 25°C
= 25°C
= 25°C
DD