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參數資料
| 型號： | AD7816-7818 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor |
| 中文描述： | 與單核和4通道，9我們，10位ADC片上溫度傳感器 |
| 文件頁數： | 4/20頁 |
| 文件大小： | 279K |
| 代理商： | AD7816-7818 |
REV. C
–4–
AD7816/AD7817/AD7818–SPECIFICATIONS
Parameter
A Version
ANALOG INPUTS
7
Input Voltage Range
V
REF
0
Input Leakage
1
Input Capacitance
10
LOGIC INPUTS
4
Input High Voltage, V
INH
2.4
Input Low Voltage, V
INL
0.8
Input High Voltage, V
INH
2
Input Low Voltage, V
INL
0.4
Input Current, I
IN
3
Input Capacitance, C
IN
10
LOGIC OUTPUTS
4
Output High Voltage, V
OH
4
2.4
Output Low Voltage, V
OL
0.4
0.2
High Impedance Leakage Current
1
High Impedance Capacitance
15
*
B Version
*
S Version
Unit
Test Conditions/Comments
(AD7817 and AD7818)
V
REF
0
1
10
V
REF
0
1
10
V max
V min
μ
A min
pF max
2.4
0.8
2
0.4
2.4
0.8
2
0.4
V min
V max
V min
V max
μ
A max
pF max
V
DD
= 5 V 10%
V
DD
= 5 V 10%
V
DD
= 3 V 10%
V
DD
= 3 V 10%
Typically 10 nA, V
IN
= 0 V to V
DD
3
3
10
10
I
SOURCE
= 200
μ
A
V
DD
= 5 V 10%
V
DD
= 3 V 10%
I
SINK
= 200
μ
A
V
DD
= 5 V 10%
V
DD
= 3 V 10%
4
2.4
4
2.4
V min
V min
0.4
0.2
0.4
0.2
V max
V max
μ
A max
pF max
1
1
15
15
NOTES
*
B and S Versions apply to AD7817 only. For operating temperature ranges, see Ordering Guide.
1
AD7816 and AD7817 temperature sensors specified with external 2.5 V reference, AD7818 specified with on-chip reference. All other specifications with external
and on-chip reference (2.5 V). For V
DD
= 2.7 V, T
A
= 85
°
C max and temperature sensor measurement error =
2
See Terminology.
3
The accuracy of the temperature sensor is affected by reference tolerance. The relationship between the two is explained in the section titled Temperature Measure-
ment Error Due to Reference Error.
4
Sample tested during initial release and after any redesign or process change that may affect this parameter.
5
On-chip reference shuts down when external reference is applied.
6
All specifications are typical for AD7818 at temperatures above 85
°
C and with V
DD
greater than 3.6 V.
7
Refers to the input current when the part is not converting. Primarily due to reverse leakage current in the ESD protection diodes.
Specifications subject to change without notice.
3
°
C.
CHARGE
REDISTRIBUTION
DAC
CLOCK
DATA
OUT
D
IN/OUT
SCLK
RD/
WR
CONVST
AGND
CONTROL
REG
A
B
OVERTEMP
REG
A > B
OTI
CONTROL
LOGIC
V
BALANCE
SAMPLING
CAPACITOR
MUX
REF
2.5V
TEMP
SENSOR
REF
IN
V
DD
AD7816
Figure 1. AD7816 Functional Block Diagram
CHARGE
REDISTRIBUTION
DAC
CLOCK
GENERATOR
DATA
OUT
D
IN/OUT
SCLK
RD/
WR
CONVST
AGND
CONTROL
REG
A
B
OVERTEMP
REG
A > B
OTI
CONTROL
LOGIC
V
BALANCE
SAMPLING
CAPACITOR
MUX
REF
2.5V
TEMP
SENSOR
V
DD
V
IN1
AD7818
Figure 2. AD7818 Functional Block Diagram
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相關代理商/技術參數 |
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|---|---|
| AD7816ACHIPS | 制造商:AD 制造商全稱:Analog Devices 功能描述:Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor |
| AD7816AR | 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:TEMP SENSOR I.C. - Bulk 制造商:Analog Devices 功能描述:ADC TEMP SENSOR SMD 7816 SOIC8 |
| AD7816ARM | 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin MSOP 制造商:Rochester Electronics LLC 功能描述:TEMPERATURE SENSOR: 10-BIT ADC, TEMPERATURE MONITORING ONLY - Bulk |
| AD7816ARM-REEL | 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin MSOP T/R 制造商:Rochester Electronics LLC 功能描述:TEMPERATURE SENSOR: 10-BIT ADC, TEMPERATURE MONITORING ONLY - Tape and Reel |
| AD7816ARM-REEL7 | 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin MSOP T/R |
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