參數(shù)資料
型號(hào)： AD7760
廠商： Analog Devices, Inc.
英文描述： 2.5 MSPS, 20-Bit ADC
中文描述： 2.5 MSPS的20位ADC
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 868K
代理商： AD7760
Preliminary Technical Data
AD7760
AD7760—SPECIFICATIONS
Table 1. V
DD1
= 2.5 V, V
DD2
= 5 V, V
REF
= 4.096 V, T
A
= +25°C, Full Power Mode, unless otherwise noted
Parameter
Test Conditions/Comments
DYNAMIC PERFORMANCE
Decimate by 256
MCLK = 24.576MHz, ODR = 48kHz, FIN = 1kHz Sine Wave
Signal to Noise Ratio (SNR)
1
Spurious Free Dynamic Range (SFDR)
1
Non-harmonic
Total Harmonic Distortion (THD)
1
Input Amplitude = -6dB
Intermodulation Distortion (IMD)
1
Decimate by 16
MCLK = 40MHz, ODR = 1.25MHz, FIN =100kHz Sine Wave
Signal to Noise Ratio (SNR)
1
Spurious Free Dynamic Range (SFDR)
1
Non-harmonic
Total Harmonic Distortion (THD)
1
Input Amplitude = -6dB
Intermodulation Distortion (IMD)
1
Decimate by 8
MCLK = 40MHz, ODR = 2.5MHz, FIN = 100kHz Sine Wave
Signal to Noise Ratio (SNR)
1
Spurious Free Dynamic Range (SFDR)
1
Non-harmonic
Total Harmonic Distortion (THD)
1
Input Amplitude = -6dB
Intermodulation Distortion (IMD)
1
FIN = 100kHz Sine Wave
Intermodulation Distortion (IMD)
1
FIN = 1MHz Sine Wave
DC ACCURACY
Resolution
Integral Nonlinearity
1
At 18 bits
Differential Nonlinearity
1
Guaranteed monotonic to 20 bits
Offset Error
1
Gain Error
1
Offset Error Drift
Gain Error Drift
DIGITAL FILTER RESPONSE
Decimate by 8
Group Delay
MCLK = 40MHz
Decimate by 16
Group Delay
MCLK = 40MHz
Decimate by 128
Group Delay
MCLK = 24.576MHz
ANALOG INPUT
Differential Input Voltage
Vin(+) – Vin(-), V
REF
= 2.5V
Vin(+) – Vin(-), V
REF
= 4.096V
DC Leakage Current
Input Capacitance
With internal buffer
With external buffer
REFERENCE INPUT/OUTPUT
V
REF
Input Voltage
V
DD3
= 3.3V
V
DD3
= 5V
V
REF
Input DC Leakage Current
V
REF
Input Capacitance
POWER REQUIREMENTS
AV
DD1
(Modulator Supply)
±5%
AV
DD2
(General Supply)
±5%
AV
DD3
(Diff-Amp Supply)
AV
DD4
(Ref Buffer Supply)
DV
DD
±5%
V
DRIVE
Rev. PrN | Page 3 of 22
Specifcation
118
118
-100
-100
103
103
-100
-100
100
100
-100
-100
-100
20
1
1
0.03
5
0.0006
0.1
12
24
480
±2
±3.25
±2
5
55
+2.5
+4.096
±1
5
+2.5
+5
+3.0/+5.5
+3.15/+5.25
+2.5
+1.65/+2.7
Unit
dB typ
dBFS typ
dB typ
dB typ
dB typ
dBFS typ
dB typ
dB typ
dB typ
dBFS typ
dB typ
dB typ
dB typ
Bits
LSB typ
LSB typ
% typ
LSB typ
% /°C
LSB /°C
μS typ
μS typ
μS typ
V pk-pk
V pk-pk
μA max
pF typ
pF typ
Volts
Volts
μA max
pF max
Volts
Volts
V min/max
V min/max
Volts
V min/max
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