參數(shù)資料
型號： ADS7808U
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： 0.300 INCH, GREEN, PLASTIC, SOIC-20
文件頁數(shù)： 11/17頁
文件大小： 468K
代理商： ADS7808U
ADS7808
3
SBAS018A
www.ti.com
ELECTRICAL CHARACTERISTICS (Cont.)
At TA = –40°C to +85°C, fS = 100kHz, VDIG = VANA = +5V, using internal reference and fixed resistors shown in Figure 4, unless otherwise specified.
ADS7808U
ADS7808UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Serial 12 bits
Binary Two's Complement or Straight Binary
Conversion results only available after completed conversion.
Selectable for internal or external data clock
SAMPLING DYNAMICS
Aperture Delay
40
ns
Aperture Jitter
Sufficient to meet AC specs
ns
Transient Response
FS Step
2
s
Overvoltage Recovery(7)
150
ns
REFERENCE
Internal Reference Voltage
No Load
2.48
2.5
2.52
V
Internal Reference Source Current
1
A
(Must use external buffer)
External Reference Voltage Range
2.3
2.5
2.7
V
for Specified Linearity
External Reference Current Drain
Ext. 2.5000V Ref
100
A
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
V
VIH(8)
+2.0
VD +0.3V
V
IIL
VIL = 0V
±10
A
IIH
VIH = 5V
±10
A
DIGITAL OUTPUTS
Data Format
Data Coding
Pipeline Delay
Data Clock
Internal
EXT/INT LOW
2.3
MHz
(Output Only When
Transmitting Data)
External
EXT/INT HIGH
0.1
10
MHz
(Can Run Continually)
VOL
ISINK = 1.6mA
+0.4
V
VOH
ISOURCE = 500A+4
V
Leakage Current
High-Z State,
±5
A
VOUT = 0V to VDIG
Output Capacitance
High-Z State
15
pF
POWER SUPPLIES
Specified Performance
VDIG
Must be
≤ V
ANA
+4.75
+5
+5.25
V
VANA
+4.75
+5
+5.25
V
IDIG
0.3
mA
IANA
16
mA
Power Dissipation: PWRD LOW
VDIG = VANA = 5V, fS = 100kHz
100
mW
PWRD HIGH
50
W
TEMPERATURE RANGE
Specified Performance
–40
+85
°C
Derated Performance
–55
+125
°C
Storage
–65
+150
°C
Thermal Resistance (
θ
JA)
SO
75
°CW
Specifications same as ADS7808U.
NOTES: (1) LSB means Least Significant Bit. For the
±10V input range, one LSB is 4.88mV. (2) Typical rms noise at worst case transitions and temperatures.
(3) As measured with fixed resistors in Figure 4. Adjustable to zero with external potentiometer. (4) For bipolar input ranges, full scale error is the worst case of
–Full Scale or +Full Scale untrimmed deviation from ideal first and last code transitions, divided by the transition voltage (not divided by the full-scale range) and
includes the effect of offset error. For unipolar input ranges, full scale error is the deviation of the last code transition divided by the transition voltage. It also includes
the effect of offset error. (5) All specifications in dB are referred to a full-scale
±10V input. (6) Full-Power Bandwidth defined as Full-Scale input frequency at which
Signal-to (Noise + Distortion) degrades to 60dB. (7) Recovers to specified performance after 2 x FS input overvoltage. (8) The minimum VIH level for the DATACLK
signal is 3V.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7808U 制造商:Texas Instruments 功能描述:IC 12BIT ADC 100KHZ SOIC20 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 100KHZ, SOIC20 制造商:Texas Instruments 功能描述:IC, 12BIT ADC, 100KHZ, SOIC20; Resolution (Bits):12bit; Sampling Rate:100kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:16mA; Digital IC Case Style:SOIC; No. of Pins:20; Input ;RoHS Compliant: Yes
ADS7808U/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7808U/1KE4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7808U/1KG4 制造商:Texas Instruments 功能描述:
ADS7808UB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 10us Serial CMOS Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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