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參數(shù)資料
| 型號： | AD6644ASTZ-65 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 65MSPS CMOS 52-LQFP |
| 標準包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 65M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 功率耗散（最大）： | 1.3W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -25°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 52-LQFP |
| 供應(yīng)商設(shè)備封裝： | 52-LQFP（10x10） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，雙極 |
AD6644
Rev. D | Page 3 of 24
SPECIFICATIONS
DC SPECIFICATIONS
AVCC = 5 V, DVCC = 3.3 V; TMIN = –25°C, TMAX = +85°C, unless otherwise noted.
Table 1.
AD6644AST-40
AD6644AST-65
Parameter
Temp
Test Level1
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
14
Bits
ACCURACY
No Missing Codes
Full
II
Guaranteed
Offset Error
Full
II
10
+3
+10
10
+3
+10
mV
Gain Error
Full
II
10
6
+10
10
–6
+10
% FS
Differential Nonlinearity (DNL)
Full
II
1.0
±0.25
+1.5
1.0
±0.25
+1.5
LSB
Integral Nonlinearity (INL)
Full
V
±0.50
LSB
TEMPERATURE DRIFT
Offset Error
Full
V
10
ppm/°C
Gain Error
Full
V
95
ppm/°C
POWER SUPPLY REJECTION RATIO (PSRR)
Full
V
±1.0
mV/V
REFERENCE OUT (VREF)
Full
V
2.4
V
ANALOG INPUTS (AIN, AIN)
Differential Input Voltage Span
Full
V
2.2
V p-p
Differential Input Resistance
Full
V
1
kΩ
Differential Input Capacitance
25°C
V
1.5
pF
POWER SUPPLY
Supply Voltage
AVCC2
Full
II
4.85
5.0
5.25
4.85
5.0
5.25
V
DVCC
Full
II
3.0
3.3
3.6
3.0
3.3
3.6
V
Supply Current
IAVCC (AVCC = 5.0 V)
Full
II
245
276
245
276
mA
IDVCC (DVCC = 3.3 V)
Full
II
30
36
30
36
mA
Rise Time3
AVCC
Full
IV
15
ms
POWER CONSUMPTION
Full
II
1.3
1.5
1.3
1.5
W
1 See the Explanation of Test Levels section.
2 AVCC can vary from 4.85 V to 5.25 V. However, rated ac (harmonics) performance is valid only over the range AVCC = 5.0 V to 5.25 V.
3 Specified for dc supplies with linear rise time characteristics.
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