參數(shù)資料
型號(hào): TC7109ACLW
元件分類: ADC
英文描述: 1-CH 12-BIT DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 2/30頁
文件大?。?/td> 479K
代理商: TC7109ACLW
TC7109/A
DS21456C-page 10
2006 Microchip Technology Inc.
FIGURE 3-1:
Conversion Timing (RUN/HOLD) Pin High
FIGURE 3-2:
Digital Section
Internal Clock
Integrator Output
for Normal Input
Integrator
Saturates
Internal Latch
Integrator Output
for Over Range Input
No Zero Crossing
ZI
AZ
Zero Integrator
Phase forces
Integrator Output
to 0V
Zero Crossing
Occurs
Zero Crossing
Detected
INT
Phase II
Status Output
AZ
Phase I
DE
Phase III
AZ
Fixed
2048
Counts
2048
Counts
Min.
4096
Counts
Max
Number of Counts to Zero Crossing
Proportional to VIN
After Zero Crossing, Analog section will
be in Auto-Zero Configuration
TEST
17
POL
3
OR
4
B
12
5
B
11
6
B
10
7
B
9
8
B
8
9
B
7
10
B
6
11
B
5
12
B
4
13
B
3
14
226
22
23
24
25
21
STATUS
RUN/
HOLD
OSC
IN
OSC
OUT
OSC
SEL
BUFF
OSC
OUT
MODE
To
Analog
Section
COMP OUT
AZ
INT
DE (±)
ZI
Conversion
Control Logic
Oscillator and
Clock Circuitry
High Order
Byte Outputs
Low Order
Byte Outputs
Handshake
Logic
B
2
15
B
1
16
27
SEND
18
19
20
LBEN
HBEN
CE/LOAD
1
GND
14 Latches
12-Bit Counter
14 Three-State Outputs
Latch
Clock
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TC7109ACPL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery 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
TC7109AIJL 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 13 Bit Fast Recovery 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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