AD7472 Analog Devices, AD7472 Datasheet - Page 3

• Manufacturer Part Number: AD7472
• Description: 12-Bit, 2.7 V to 5.25 V, 1.5 MSPS Low Power ADC
• Manufacturer: Analog Devices

Specifications of AD7472

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1.5MSPS
• Interface: Par
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: SOIC,SOP

Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
POWER REQUIREMENTS
NOTES
1
2
3
4
Specifications subject to change without notice.
AD7472–SPECIFICATIONS
REV. B
Temperature ranges as follows: A and B Versions: –40°C to +85°C.
The AD7472 functionally works at 2.35 V. Typical specifications @ 25°C for SNR (100 kHz) = 68 dB; THD (100 kHz) = –84 dB; INL ± 0.8 LSB.
Sample tested @ 25°C to ensure compliance.
See Power vs. Throughput Rate section.
Signal to Noise + Distortion (SINAD) 69
Signal-to-Noise Ratio (SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
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
REF IN Input Voltage Range
DC Leakage Current
Input Capacitance
Input High Voltage, V
Input Low Voltage, V
Input Current, I
Input Capacitance, C
Output High Voltage, V
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
Output Coding
Conversion Time
Track-and-Hold Acquisition Time
Throughput Rate
V
I
Power Dissipation
DD
DD
(SFDR)
Second-Order Terms
Third-Order Terms
Normal Mode
Quiescent Current
Normal Mode
Quiescent Current
Sleep Mode
Normal Mode
Sleep Mode
4
IN
4
IN
INL
INH
3
OL
OH
5 V
68
70
68
–83
–83
–75
–86
–86
–76
–77
–86
–77
–86
5
15
20
12
± 2
± 1.8
± 10
± 2
0 to REF IN 0 to REF IN
± 1
33
2.5
± 1
10/20
2.4
0.4
± 1
10
V
0.4
± 10
10
Straight (Natural) Binary
14
135
1.5
+2.7/+5.25
2.4
900
1.5
800
1
12
4.5
5
3
DRIVE
A Version
– 0.2 V
1
3 V
69
68
70
68
–78
–84
–75
–81
–86
–76
–77
–86
–77
–86
5
15
20
12
± 2
± 1.8
± 10
± 2
± 1
33
2.5
± 1
10/20
2.4
0.4
± 1
10
0.4
± 10
14
135
1.2
10
DRIVE
– 0.2
1
(V
20 MHz @ 3 V, T
DD
5 V
69
68
70
68
–83
–83
–75
–86
–86
–76
–77
–86
–77
–86
5
15
20
12
± 1
± 0.9
± 10
± 2
0 to REF IN 0 to REF IN
± 1
33
2.5
± 1
10/20
2.4
0.4
± 1
10
V
0.4
± 10
10
Straight (Natural) Binary
14
135
1.5
+2.7/+5.25
2.4
900
1.5
800
1
12
4.5
5
3
DRIVE
= 2.7 V to 5.25 V
B Version
– 0.2 V
–3–
3 V
69
68
70
68
–78
–84
–75
–81
–86
–76
–77
–86
–77
–86
5
15
20
12
± 1
± 0.9
± 10
± 2
± 1
33
2.5
± 1
10/20
2.4
0.4
± 1
10
0.4
± 10
10
14
135
1.2
1
A
DRIVE
= T
MIN
– 0.2
2
, REF IN = 2.5 V, A and B Versions: f
to T
MAX
Unit
dB typ
dB min
dB typ
dB min
dB typ
dB typ
dB max
dB typ
dB typ
dB max
dB typ
dB typ
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
µA max
pF typ
V min
V max
µA max
pF max
V min
V max
µA max
pF max
CLK IN
Cycles (max)
ns min
MSPS max
V min/max
mA max
µA max
mA max
µA max
µA max
mW max
mW max
µW max
µW max
, unless otherwise noted.)
Test Conditions/Comments
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
@ 3 dB
f
Guaranteed No Missed Codes to 11 Bits
(A Version)
Guaranteed No Missed Codes to 12 Bits
(B Version)
± 1% for Specified Performance
Track-and-Hold Mode
Typically 10 nA, V
I
I
V
Conversion Time + Acquisition Time
Digital Inputs = 0 V or DV
V
V
V
V
CLK IN = 0 V or DV
Digital Inputs = 0 V or DV
V
V
V
V
S
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
S
SOURCE
SINK
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 1.5 MSPS @ 5 V, f
= 1.5 MSPS @ 5 V
= 100 kHz Sine Wave
= 500 kHz Sine Wave
= 100 kHz Sine Wave
= 500 kHz Sine Wave
= 500 kHz Sine Wave
= 100 kHz Sine Wave
= 100 kHz Sine Wave
= 500 kHz Sine Wave
= 100 kHz Sine Wave
= 100 kHz Sine Wave
= 500 kHz Sine Wave
= 100 kHz Sine Wave
= 500 kHz Sine Wave
= 100 kHz Sine Wave
= 4.75 V to 5.25 V; Typ 2 mA; f
= 4.75 V to 5.25 V; f
= 2.7 V to 3.3 V; Typ 1.3 mA; f
= 2.7 V to 3.3 V; f
= 5 V
= 3 V
= 5 V; CLK IN = 0 V or DV
= 3 V; CLK IN = 0 V or DV
= 2.7 V to 5.25 V
= 200 µA
= 200 µA
AD7470/AD7472
IN
CLKIN
= 0 V or V
DD
,
S
S
f
S
= 26 MHz @ 5 V and
= 1.2 MSPS
= 1.2 MSPS @ 3 V
S
= 1.2 MSPS @ 3 V
DD
= 1.5 MSPS
DD
DD
DD
DD
S
S
= 1.2 MSPS
= 1.5 MSPS