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參數(shù)資料
| 型號： | TLC320AD58CDWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 2-CH 18-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | PLASTIC, SO-28 |
| 文件頁數(shù)： | 8/27頁 |
| 文件大小： | 186K |
| 代理商： | TLC320AD58CDWR |
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3–2
3.3
Electrical Characteristics
3.3.1
Digital Interface, TA = 25°C, AVDD = DVDD = 5 V
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
2
4.6
V
VIL
Low-level input voltage
0.2
0.8
V
VOH
High-level output voltage at DOUT
IOH = 2 mA
2.4
4.6
V
VOL
Low-level output voltage at DOUT
IOL = 2 mA
0.2
0.4
V
IIH
High-level input current, any digital input
1
A
IIL
Low-level input current, any digital input
1
A
Ci
Input capacitance
5
pF
Co
Output capacitance
5
pF
3.3.2
Analog Interface
3.3.2.1
ADC Modulator, TA = 25°C, AVDD = DVDD = 5 V, fs = 48 kHz, Bandwidth = 24 kHz,
CMODE = 0, MODE(0 – 2) = 000
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
18
Bits
DYNAMIC PERFORMANCE
ANSI A-weighting filter
Signal to noise (EIAJ)
INLP = INRP = 2.5 V dc
INLM = INRM = 2.5 V dc
96
100
dB
Dynamic range
1dBd
f
90
95
dB
Signal to noise + distortion (THD + N)
–1 dB down from
6-V differential input
88
93
dB
Total harmonic distortion (THD)
6-V differential in ut
0.0015%
Interchannel isolation
120
dB
DC ACCURACY
Absolute gain error
±0.6
dB
Interchannel gain mismatch
±0.2
dB
Offset error (18-bit resolution)
120
±5
mV
Offset drift
±0.17
LSB/
°C
3.3.2.2
Inputs/Supplies, TA = 25°C, AVDD = DVDD = 5 V, fs = 48 kHz, Bandwidth = 24 kHz
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG INPUT
Input voltage range
(differential)
6.2
V
Input voltage range
(0 to peak)
3.1
V
Input impedance
200
k
POWER SUPPLIES
IDD (analog), normal mode
24
32
mA
Power supply current
IDD (digital), normal mode
26
32
mA
Power-supply current
IDD (analog), power down
250
A
IDD (digital), power down
150
A
Power dissipation
250
mW
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