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參數資料
| 型號： | AD7994 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP |
| 中文描述： | 4通道，12-/10-Bit ADC的16 - I2C兼容接口的無鉛TSSOP封裝 |
| 文件頁數： | 5/27頁 |
| 文件大小： | 277K |
| 代理商： | AD7994 |
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–5–
REV. PrF
PRELIMINARY TECHNICAL DATA
(
V
DD
= +2.7 V to +5.5 V, unless otherwise noted ; REF
IN
= 2.5 V; f
SCL
= 3.4 MHz unless
otherwise noted; T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
AD7993–SPECIFICATIONS
1
P
S
S
P
t
6
t
4
t
1
t
3
t
5
t
8
t
2
t
11
t
12
t
6
SCL
SDA
t
7
t
9
t
10
S = START CONDITION
P = STOP CONDITION
I
2
C TIMING SPECIFICATIONS
1
(
V
DD
= +2.7 V to +5.5 V, unless otherwise noted ; REF
IN
= 2.5 V; unless otherwise noted; T
A
=
T
MIN
to T
MAX
, unless otherwise noted..)
AD7994/AD7993
Limit at T
MIN
, T
MAX
MIN
Parameter Conditions
MAX
Unit
Description
f
SCL
2
Standard Mode
Fast Mode
High-Speed Mode, C
B
= 100pF max
High-Speed Mode, C
B
= 400pF max
Standard Mode
Fast Mode
High-Speed Mode, C
B
= 100pF max 60
High-Speed Mode, C
B
= 400pF max 120
Standard Mode
Fast Mode
High-Speed Mode, C
B
= 100pF max 160
High-Speed Mode, C
B
= 400pF max 320
Standard Mode
Fast Mode
High-Speed Mode
100
400
3.4
1.7
kHz
kHz
MHz
MHz
μ
s
μ
s
ns
ns
μ
s
μ
s
ns
ns
ns
ns
ns
Serial Clock Frequency
t
1
4
0.6
t
HIGH
, SCL High Time
t
2
4.7
1.3
t
LOW
, SCL Low Time
t
3
250
100
10
-
-
-
t
SU;DAT
, Data Setup Time
NOTES
1
Temperature ranges as follows: B Version: –40°C to +85°C.
2
See Terminology.
3
Sample tested @ +25°C to ensure compliance.
4
See POWER VERSUS THROUGHPUT RATE section.
Specifications subject to change without notice.
Figure 1. Two-Wire Serial Interface Timing Diagram
Parameter
B Version
1
Units
Test Conditions/Comments
CONVERSION RATE
Conversion Time
Track/Hold Acquisition Time
See Interface Section
2
TBD
TBD
3.4
13
79
μs typ
ns max
ns max
KSPS max
KSPS max
KSPS max
Full-Scale step input
Sine wave input <= 30 KHz
Standard mode 100 kHz
Fast Mode 400 kHz
High-Speed Mode 3.4 MHz
Throughput Rate
POWER REQUIREMENTS
V
DD
I
DD
Peak Current
Power Down Mode , Interface Inactive
Interface Active
2.7/5.5 V
min/max
Digital Inputs = 0 V or V
DD
Peak Current during conversion
V
DD
= 3 V/5 V.
V
DD
= 3 V/5 V 400 kHz SCL.
V
DD
= 3 V/5 V 3.4 MHz SCL.
TBD
0.2/0.6
0.05/0.2
0.3/0.8
mA max
μA max
mA max
mA max
Operating, Interface Inactive
0.06/0.15
0.3/0.6
0.15/0.35
0.6/1.4
mA max
mA max
mA max
mA max
V
DD
= 3 V/5 V 400 kHz SCL.
V
DD
= 3 V/5 V 3.4 MHz SCL.
V
DD
= 3 V/5 V 400 kHz SCL.
V
DD
= 3 V/5 V 3.4 MHz SCL.
Interface Active
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7994-0 | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP |
| AD7994-1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP |
| AD7994BRU-0 | 功能描述:IC ADC 12BIT 4CHAN I2C 16TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| AD7994BRU-0REEL | 功能描述:IC ADC 12BIT 4CHAN I2C 16TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| AD7994BRU-1 | 制造商:Analog Devices 功能描述:ADC Single SAR 188ksps 12-bit Serial 16-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述: |
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