AD7694 Analog Devices, AD7694 Datasheet - Page 3

• Manufacturer Part Number: AD7694
• Manufacturer: Analog Devices

Specifications of AD7694

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: SOP

SPECIFICATIONS
VDD = 2.7 V to 5.25 V; V
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
ACCURACY
THROUGHPUT
AC ACCURACY
1
2
See the Terminology section. These specifications include full temperature range variation, but do not include the error contribution from the external reference.
All specifications in dB refer to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
Voltage Range
Absolute Input Voltage
Leakage Current at 25°C
Input Impedance
No Missing Codes
Integral Linearity Error
Transition Noise
Gain Error
Gain Error Temperature Drift
Offset Error
Offset Temperature Drift
Power Supply Sensitivity
Conversion Rate
Signal-to-Noise
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise + Distortion)
1
, T
1
, T
MIN
MIN
to T
to T
MAX
MAX
REF
= VDD; T
Conditions
IN+ − IN−
IN+
IN−
Acquisition phase
REF = VDD = 5 V
VDD = 5 V ± 5%
VDD = 4.75 V to 5.25 V
VDD = 2.7 V to 4.75 V
f
f
f
f
f
f
A
IN
IN
IN
IN
IN
IN
= –40°C to +85°C, unless otherwise noted.
= 20 kHz, V
= 20 kHz, V
= 20 kHz
= 20 kHz
= 20 kHz, V
= 20 kHz, V
REF
REF
REF
REF
= 5 V
= 2.5 V
= 5 V
= 2.5 V
Rev. A | Page 3 of 16
Min
16
0
−0.1
−0.1
15
−6
0
0
Typ
1
0.5
±2
±0.3
±0.7
±0.3
±0.05
90
86
−100
−100
89
86
A Grade
See the Analog Input section
Max
V
VDD + 0.1
+0.1
+6
±30
±3.5
250
150
REF
Min
16
0
−0.1
−0.1
16
−4
0
0
88
88
Typ
1
0.5
±2
±0.3
±0.7
±0.3
±0.05
92
87
−106
−106
92
87
B Grade
Max
V
VDD + 0.1
+0.1
±15
±3.5
250
150
+4
REF
AD7694
Unit
Bits
V
V
V
nA
Bits
LSB
LSB
LSB
ppm/°C
mV
ppm/°C
LSB
kSPS
kSPS
dB
dB
dB
dB
dB
dB
2