AD7763 Analog Devices, AD7763 Datasheet - Page 3

• Manufacturer Part Number: AD7763
• Description: 24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface
• Manufacturer: Analog Devices

Specifications of AD7763

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: 40MSPS
• Interface: I2S,Ser
• Analog Input Type: Diff-Bip
• Ain Range: 4 V p-p,6.5 V p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: QFP

SPECIFICATIONS
AV
using on-chip amplifier with components as shown in Table 10, unless otherwise noted.
Table 2.
Parameter
DYNAMIC PERFORMANCE
DC ACCURACY
DIGITAL FILTER RESPONSE
ANALOG INPUT
Resolution
Differential Nonlinearity
Integral Nonlinearity
Zero Error
Gain Error
Zero Error Drift
Gain Error Drift
Differential Input Voltage
Input Capacitance
Decimate × 256
Decimate × 64
Decimate × 32
Decimate × 32
Decimate × 64
Decimate × 256
DD1
Dynamic Range
Signal-to-Noise Ratio (SNR)
Spurious-Free Dynamic Range (SFDR)
Total Harmonic Distortion (THD)
Dynamic Range
Signal-to-Noise Ratio (SNR)
Spurious-Free Dynamic Range (SFDR)
Dynamic Range
Signal-to-Noise Ratio (SNR)
Spurious-Free Dynamic Range (SFDR)
Total Harmonic Distortion (THD)
Group Delay
Group Delay
Group Delay
= DV
DD
= V
DRIVE
= 2.5 V; AV
2
2
2
DD2
= AV
DD3
= AV
Test Conditions/Comments
MCLK = 40 MHz, ODR = 78 kHz, F
Modulator inputs shorted
Input amplitude = −0.5 dBFS
Input amplitude = −60 dB
Nonharmonic, input amplitude = −6 dB
Input amplitude = −60 dB
Input amplitude = −0.5 dBFS
Input amplitude = −6 dB
Input amplitude = −60 dB
MCLK = 40 MHz, ODR = 312.5 kHz, F
Modulator inputs shorted
Input amplitude = −0.5 dBFS
Nonharmonic, input amplitude = −6 dB
MCLK = 40 MHz, ODR = 625 kHz, F
Modulator inputs shorted
Input amplitude = −0.5 dBFS
Nonharmonic, input amplitude = −6 dB
Input amplitude = −0.5 dBFS
Input amplitude = −6 dB
Guaranteed monotonic to 24 bits
MCLK = 40 MHz
MCLK = 40 MHz
MCLK = 40 MHz
V
V
At internal buffer inputs
At modulator inputs
IN
IN
(+) – V
(+) – V
DD4
= 5 V; V
IN
in
(−), V
(−), V
Rev. A | Page 3 of 32
REF
REF
REF
= 4.096 V
= 4.096 V; MCLK amplitude = 5 V; T
= 2.5 V
IN
IN
= 1 kHz
IN
= 100 kHz
= 1 kHz
1
A
Specification
119
120.5
112
59
126
77
−105
−106
−75
112
113
109.5
126
108
109.5
107
120
−105
−107
24
0.00076
0.014
0.02
0.018
10
0.0002
47
91.5
358
±2
±3.25
5
55
= 25°C; normal mode,
Unit
dB min
dB typ
dB typ
dBc typ
dBc typ
dB typ
dBc typ
dB min
dB typ
dB typ
dBc typ
dB min
dB typ
dB typ
dB typ
Bits
% typ
% typ
% max
% typ
μ%FS/°C typ
%FS/°C typ
μs typ
μs typ
μs typ
V p-p
V p-p
pF typ
dBc typ
dBc typ
dBc typ
dBc typ
pF typ
AD7763