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參數(shù)資料
| 型號： | AD7575JRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT LC2MOS W/HOLD 18SOIC |
| 標(biāo)準(zhǔn)包裝： | 41 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 50k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 15mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 18-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 18-SOIC |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個(gè)單端，單極；1 個(gè)單端，雙極 |
REV. B
–2–
AD7575–SPECIFICATIONS
(VDD = +5 V, VREF = +1.23 V, AGND = DGND = 0 V; fCLK = 4 MHz external;
all specifications TMIN to TMAX unless otherwise noted)
Parameter
J, A Versions
1
K, B Versions
S Version
T Version
Units
Conditions/Comments
ACCURACY
Resolution
8
Bits
Total Unadjusted Error
±2
±1
±2
±1
LSB max
Relative Accuracy
±1
±1/2
±1
±1/2
LSB max
Minimum Resolution for Which
No Missing Codes Is Guaranteed
8
Bits max
Full-Scale Error
+25
°C
±1
LSB max
Full-Scale TC Is Typically 5 ppm/
°C
TMIN to TMAX
±1
LSB max
Offset Error
2
+25
°C
±1/2
LSB max
Offset TC Is Typically 5 ppm/
°C
TMIN to TMAX
±1/2
LSB max
ANALOG INPUT
Voltage Range
0 to 2 VREF
0 to 2 VREF 0 to 2 VREF
Volts
1 LSB = 2 VREF/256; See Figure 16
DC Input Impedance
10
M
min
Slew Rate, Tracking
0.386
V/
s max
SNR
3
45
dB min
VIN = 2.46 V p-p @ 10 kHz; See Figure 11
REFERENCE INPUT
VREF (For Specified Performance)
1.23
Volts
±5%
IREF
500
A max
LOGIC INPUTS
CS, RD
VINL, Input Low Voltage
0.8
V max
VINH, Input High Voltage
2.4
V min
IIN, Input Current
+25
°C
±1
A max
VIN = 0 or VDD
TMIN to TMAX
±10
A max
VIN = 0 or VDD
CIN, Input Capacitance
3
10
pF max
CLK
VlNL, Input Low Voltage
0.8
V max
VINH, Input High Voltage
2.4
V min
IINL, Input Low Current
700
800
A max
VINL = 0 V
IINH, Input High Current
700
800
A max
VINH = VDD
LOGIC OUTPUTS
BUSY, DB0 to DB7
VOL, Output Low Voltage
0.4
V max
ISINK = 1.6 mA
VOH, Output High Voltage
4.0
V min
ISOURCE = 40 A
DB0 to DB7
Floating State Leakage Current
±1
±10
A max
VOUT = 0 to VDD
Floating State Output Capacitance
3
10
pF max
CONVERSION TIME
4
With External Clock
5
sf
CLK = 4 MHz
With Internal Clock, TA = +25°C5
5
s min
Using Recommended Clock
15
s max
Components Shown in Figure 15
POWER REQUIREMENTS
5
VDD
+5
Volts
±5% for Specified Performance
IDD
6
7
mA max
Typically 3 mA with VDD = +5 V
Power Dissipation
15
mW typ
Power Supply Rejection
±1/4
LSB max
4.75 V
≤ V
DD ≤ 5.25 V
NOTES
1Temperature ranges are as follows:
J, K Versions; 0
°C to +70°C
A, B Versions; –25
°C to +85°C
S, T Versions; –55
°C to +125°C
2Offset error is measured with respect to an ideal first code transition that occurs at 1/2 LSB.
3Sample tested at +25
°C to ensure compliance.
4Accuracy may degrade at conversion times other than those specified.
5Power supply current is measured when AD7575 is inactive i.e., when CS = RD = BUSY = logic HIGH.
Specifications subject to change without notice.
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