AD7478 Analog Devices, AD7478 Datasheet - Page 5

• Manufacturer Part Number: AD7478
• Description: 8-Bit, 1 MSPS, Low Power Successive Approximation ADC Which Operates From A Single 2.35 V to 5.25 V Power Supply
• Manufacturer: Analog Devices

Specifications of AD7478

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

AD7477 SPECIFICATIONS
V
Table 2.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
DD
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Signal-to-(Noise + Distortion) (SINAD)
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
Input Voltage Ranges
DC Leakage Current
Input Capacitance
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Current, I
Input Capacitance, C
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
= 2.7 V to 5.25 V, f
Second-Order Terms
Third-Order Terms
3
3
IN
IN
, SCLK Pin
, CS Pin
INL
IN
SCLK
3
INH
4
OL
OH
3
= 20 MHz, T
3
3
4
A
= T
3
MIN
to T
A Version
61
−73
−74
−78
−78
10
30
6.5
10
±1
±0.9
±1
±1
0 to V
±1
30
2.4
0.8
0.4
±1
±1
10
V
0.4
±10
10
800
400
1
DD
MAX
Straight (Natural) Binary
– 0.2
, unless otherwise noted.
DD
Rev. F | Page 5 of 24
1,2
S Version
61
−73
−74
−78
−78
10
30
6.5
10
±1
±0.9
±1
±1
0 to V
±1
30
2.4
0.8
0.4
±1
±1
10
V
0.4
±10
10
800
400
1
DD
– 0.2
DD
1,2
Unit
dB min
dB max
dB max
dB typ
dB typ
ns typ
ps typ
MHz typ
Bits
LSB max
LSB max
LSB max
LSB max
V
μA max
pF typ
V min
V max
V max
μA max
μA typ
pF max
V min
V max
μA max
pF max
ns max
ns max
MSPS max
Test Conditions/Comments
f
fa = 103.5 kHz, fb = 113.5 kHz
fa = 103.5 kHz, fb = 113.5 kHz
@ 3 dB
Guaranteed no missed codes to 10 bits
V
V
Typically 10 nA, V
I
I
16 SCLK cycles with SCLK at 20 MHz
See Serial Interface section
SOURCE
SINK
IN
DD
DD
AD7476/AD7477/AD7478
= 100 kHz sine wave, f
= 5 V
= 3 V
= 200 μA
= 200 μA, V
IN
DD
= 0 V or V
= 2.7 V to 5.25 V
SAMPLE
DD
= 1 MSPS