AD7686 Analog Devices, AD7686 Datasheet - Page 3

• Manufacturer Part Number: AD7686
• Manufacturer: Analog Devices

Specifications of AD7686

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,SOIC,SOP

SPECIFICATIONS
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, V
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
ACCURACY
THROUGHPUT
AC ACCURACY
1
2
3
4
LSB means least significant bit. With the 5 V input range, 1 LSB is 76.3 μV.
See the Terminology section. These specifications do include full temperature range variation, but do not include the error contribution from the external reference.
All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
f
IN1
Voltage Range
Absolute Input Voltage
Analog Input CMRR
Leakage Current @ 25°C
Input Impedance
No Missing Codes
Differential Linearity Error
Integral Linearity Error
Transition Noise
Gain Error
Gain Error Temperature Drift
Offset Error
Offset Temperature Drift
Power Supply Sensitivity
Conversion Rate
Transient Response
Signal-to-Noise Ratio
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise + Distortion)
Intermodulation Distortion
= 21.4 kHz, f
2
, T
2
IN2
, T
MIN
= 18.9 kHz, each tone at −7 dB below full scale.
MIN
to T
to T
MAX
MAX
4
Conditions
IN+ − IN−
IN+
IN−
f
Acquisition phase
REF = VDD = 5 V
VDD = 5 V ± 5%
Full-scale step
f
f
f
f
f
f
IN
IN
IN
IN
IN
IN
IN
= 200 kHz
= 20 kHz, V
= 20 kHz, V
= 20 kHz
= 20 kHz
= 20 kHz, V
= 20 kHz, V
REF
REF
REF
REF
REF
= VDD, T
= 5 V
= 2.5 V
= 5 V
= 5 V, −60 dB input
A
Rev. B | Page 3 of 28
= –40°C to +85°C, unless otherwise noted.
Min
16
0
−0.1
−0.1
16
−1
−3
0
89
89
See the Analog Input
Typ
65
1
±0.7
±1
0.5
±2
±0.3
±0.1
±0.3
±0.05
92
87.5
−106
−106
92
32
−110
B Grade
section
Max
V
VDD + 0.1
+0.1
+3
±8
±1.6
500
400
REF
Min
16
0
−0.1
−0.1
16
−1
91
91
−2
0
See the Analog Input
Typ
65
1
±0.5
±0.6
0.45
±2
±0.3
±0.1
±0.3
±0.05
92.7
88
−110
−110
92.5
33.5
−115
C Grade
section
Max
V
VDD + 0.1
+0.1
+1.5
+2
±6
±1.6
500
400
REF
AD7686
Unit
Bits
V
V
V
dB
nA
Bits
LSB
LSB
LSB
LSB
ppm/°C
mV
ppm/°C
LSB
kSPS
ns
dB
dB
dB
dB
dB
dB
dB
2
2
2
2
2
2
3
1
1
1
1
1