AD7451 Analog Devices, AD7451 Datasheet - Page 3

• Manufacturer Part Number: AD7451
• Description: Pseudo Differential Input, 1 MSPS, 12-Bit ADC in an 8-Lead SOT-23
• Manufacturer: Analog Devices

Specifications of AD7451

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: SOP,SOT

SPECIFICATIONS
V
versions: −40°C to +85°C.
Table 1. AD7451
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
DD
Signal-to-Noise Ratio (SNR)
Signal-to-(Noise + Distortion) (SINAD)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Aperture Delay
Aperture Jitter
Full-Power Bandwidth
Resolution
Integral Nonlinearity (INL)
Differential Nonlinearity (DNL)
Offset Error
Gain Error
Full-Scale Input Span
Absolute Input Voltage
DC Leakage Current
Input Capacitance
V
DC Leakage Current
V
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
REF
REF
= 2.7 V to 5.25 V; f
Second-Order Terms
Third-Order Terms
V
V
IN+
IN–
Input Voltage
Input Capacitance
3
1
1
1
1
IN
4
INL
IN
SCLK
INH
1, 2
5
OL
OH
= 18 MHz; f
1
1
1
1
1
1
5
S
1
= 1 MSPS; V
Test Conditions/Comments
f
V
V
V
V
V
V
V
fa = 90 kHz; fb = 110 kHz
@ −3 dB
@ −0.1 dB
Guaranteed no missed codes to 12 bits
V
V
V
When in track-and-hold
±1% tolerance for specified performance
When in track-and-hold
Typically 10 nA, V
V
V
I
SINK
IN
DD
DD
DD
DD
DD
DD
DD
IN+
DD
DD
DD
DD
= 100 kHz
= 2.7 V to 5.25 V
= 2.7 V to 3.6 V
= 4.75 V to 5.25 V
= 2.7 V to 3.6 V; −78 dB typ
= 4.75 V to 5.25 V; −80 dB typ
= 2.7 V to 3.6 V; −80 dB typ
= 4.75 V to 5.25 V; −82 dB typ
= 2.7 V to 3.6 V
= 4.75 V to 5.25 V
= 4.75 V to 5.25 V; I
= 2.7 V to 3.6 V; I
= 200 μA
− V
IN–
REF
= 2.5 V; T
Rev. D | Page 3 of 24
IN
= 0 V or V
SOURCE
A
SOURCE
= T
= 200 μA
MIN
= 200 μA
DD
to T
MAX
, unless otherwise noted. Temperature ranges for A, B
A Version
70
69
70
−73
−75
−73
−75
−80
−80
5
50
20
2.5
12
±1.5
±0.95
±3.5
±3
V
V
−0.1 to +0.4
−0.1 to +1.5
±1
30/10
2.5
±1
10/30
2.4
0.8
±1
10
2.8
2.4
0.4
±1
10
Straight
(natural) binary
REF
REF
B Version
70
69
70
−73
−75
−73
−75
−80
−80
5
50
20
2.5
12
±1
±0.95
±3.5
±3
V
V
−0.1 to +0.4
−0.1 to +1.5
±1
30/10
2.5
±1
10/30
2.4
0.8
±1
10
2.8
2.4
0.4
±1
10
Straight
(natural) binary
REF
REF
AD7441/AD7451
Unit
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
Bits
LSB max
LSB max
LSB max
V
V
μA max
pF typ
μA max
V min
V max
μA max
pF max
V min
V min
V max
pF max
dB min
dB min
dB min
dB max
dB max
dB max
dB max
LSB max
V
V
V
pF typ
μA max