AD7451 Analog Devices, AD7451 Datasheet - Page 5

• 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

V
B version: −40°C to +85°C.
Table 2. AD7441
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
ANALOG INPUT
REFERENCE INPUT
LOGIC INPUTS
LOGIC OUTPUTS
DD
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
5
S
1
= 1 MSPS; V
Test Conditions/Comments
f
2.7 V to 3.6 V; −77 dB typical
4.75 V to 5.25 V; −79 dB typical
2.7 V to 3.6 V; −80 dB typical
4.75 V to 5.25 V; −82 dB typical
fa = 90 kHz, fb = 110 kHz
@ −3 dB
@ −0.1 dB
Guaranteed no missed codes to 10 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
IN+
DD
DD
DD
DD
= 100 kHz
= 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 5 of 24
IN
= 0 V or V
SOURCE
A
SOURCE
= T
= 200 μA
MIN
= 200 μA
DD
to T
MAX
, unless otherwise noted. Temperature range for
B Version
61
−72
−73
−72
−74
−80
−80
5
50
20
2.5
10
±0.5
±0.5
±1
±1
V
V
−0.1 to +0.4
−0.1 to +1.5
±1
30/10
±1
10/30
2.4
0.8
±1
10
2.8
2.4
0.4
±1
10
Straight (natural) binary
2.5
REF
REF
AD7441/AD7451
Unit
dB min
dB max
dB max
dB max
dB max
dB typ
dB typ
ns typ
ps typ
MHz typ
MHz typ
Bits
LSB max
LSB max
LSB max
LSB max
V
V
V
V
μA max
pF typ
V
μA max
pF typ
V min
V max
μA max
pF max
V min
V min
V max
μA max
pF max