AD7492 Analog Devices, AD7492 Datasheet - Page 5

• Manufacturer Part Number: AD7492
• Description: 1MSPS, 4mW Internal Ref & Clk, 12-Bit Parallel ADC
• Manufacturer: Analog Devices

Specifications of AD7492

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Par
• Analog Input Type: SE-Uni
• Ain Range: Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: SOIC,SOP

Parameter
DC ACCURACY
ANALOG INPUT
REFERENCE OUTPUT
LOGIC INPUTS
LOGIC OUTPUTS
CONVERSION RATE
POWER REQUIREMENTS
1
2
3
4
5
6
Only A version specification applies to the AD7492-4.
Temperature ranges as follows: A and B versions: −40°C to +85°C.
500 kHz sine wave specifications do not apply for the AD7492-4.
V
Sample tested @ 25°C to ensure compliance.
See the Power vs. Throughput section.
INH
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Input Voltage Ranges
DC Leakage Current
Input Capacitance
REF OUT Output Voltage Range
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/Hold Acquisition Time
Throughput Rate
V
I
Power Dissipation
DD
DD
Normal Mode
Quiescent Current
Partial Sleep Mode
Full Sleep Mode
Normal Mode
Partial Sleep Mode
Full Sleep Mode
and V
INL
trigger levels are set by the V
IN
4, 6
INL
IN
INH
3, 5
OL
4
OH
4
DRIVE
voltage. The logic interface circuitry is powered by V
A Version
12
±1.5
+1.5/−0.9
±9
±2.5
0 to 2.5
±1
33
2.5
V
V
±1
10
V
0.4
±10
10
Straight (Natural)
Binary
880
120
1
400
2.7/5.25
3
1.8
250
1
15
1.25
5
DRIVE
DRIVE
DRIVE
× 0.7
× 0.3
− 0.2
2
Rev. A | Page 5 of 24
B Version
12
±0.6
±1
+1.5/−0.9
±9
±2.5
0 to 2.5
±1
33
2.5
V
V
±1
10
V
0.4
±10
10
Straight (Natural)
Binary
880
120
1
2.7/5.25
3
1.8
250
1
15
1.25
5
DRIVE
DRIVE
DRIVE
× 0.7
× 0.3
− 0.2
2
DRIVE
.
Unit
Bits
LSB max
LSB typ
LSB max
LSB max
LSB max
LSB max
V
μA max
pF typ
V
V min
V max
μA max
pF max
V min
V max
μA max
pF max
ns max
ns min
MSPS max
kSPS max
V min/max
mA max
mA max
μA max
μA max
mW max
mW max
μW max
Test Conditions/Comments
f
f
V
V
Guaranteed no missed codes to
12 bits (A and B versions)
±1.5% for specified performance
V
V
Typically 10 nA, V
I
I
Conversion time + acquisition
time for AD7492
Conversion time + acquisition
time for AD7492-4
Digital I/Ps = 0 V or DV
f
f
(AD7492-4)
Static, typ 190 μA
Static, typ 200 nA
Digital I/Ps = 0 V or DV
V
V
V
SOURCE
SINK
S
S
S
S
DD
DD
DD
DD
DD
DD
DD
= 1 MSPS for AD7492
= 400 kSPS for AD7492-4
= 1 MSPS, typ 2.2 mA
= 400 kSPS, Typ 2.2 mA
= 5 V
= 3 V
= 5 V ± 5%
= 5 V ± 5%
= 5 V
= 5 V
= 5 V
= 200 μA
= 200 μA
IN
= 0 V or V
AD7492
DD
DD
.
DD