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參數(shù)資料
| 型號(hào)： | TC3401VQR |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 16-Bit Low Cost, Low Power Sigma-Delta A/D Converter |
| 中文描述： | 16位低成本，低功耗Σ-ΔA / D轉(zhuǎn)換 |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大?。?/td> | 458K |
| 代理商： | TC3401VQR |
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2002 Microchip Technology Inc.
DS21410B-page 5
TC3401
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
Pin No.
(16-Pin PDIP)
(16-Pin QSOP)
Symbol
Description
1
IN1+
Analog Input. This is the positive terminal of a true differential input consisting of IN1+ and IN1-.
V
IN1
= (IN1+ – IN-). See Section 1.0, Electrical Characteristics.
Analog Input. This is the negative terminal of a true differential input consisting of IN1+ and IN1-.
V
IN1
= (IN+ – IN-) IN1-can swing to, but not below, ground. See Section 1.0, Electrical Characteristics.
Analog Input. This is the positive terminal of a true differential input consisting of IN2+ and IN2-.
V
IN2
= (IN2+ – IN-). See Section 1.0, Electrical Characteristics.
Analog Input. This is the negative terminal of a true differential input consisting of IN2+ and IN2-.
V
IN2
= (IN+ – IN-) IN2-can swing to, but not below, ground. See Section 1.0, Electrical Characteristics.
Analog Input. This is the positive input to an internal comparator used as a threshold detector
The negative input is tied to an internal reference.
Analog Input. This is the positive input to the internal comparator used to monitor the voltage supply.
The negative input is tied to an internal reference. When V
TH
falls below the internal reference, the
reset generator drives RESET low. See Section 1.0, Electrical Characteristics.
Analog Input. The converter’s reference voltage is the differential between this pin and ground times
two. It may be tied directly to REF
OUT
or scaled using a resistor divider. Any user supplied
reference voltage less than 1.25 may be used in place of REF
OUT
.
Ground Terminal.
Analog Output. The internal reference connects to this pin. It may be scaled externally and tied to
the REF
IN
input to provide the converter’s reference voltage. Care must be taken in connecting
external circuitry to this pin. This pin is in a high impedance state during Sleep mode.
Digital Output (push-pull). This is the microPort serial data output. SDAT is driven low while the
TC3401 is converting data, effectively providing a “busy” signal. After the conversion is complete,
every high to low transition on the SCLK pin puts a bit from the resulting data word on the SDAT pin
(from MSB to LSB).
Digital Output (open drain). This is the output of the internal threshold detector. When PFI is less
than the internal reference, PFO is driven low.
Digital Input. When this input control is pulled low, the part is internally restarted. That is, any data
conversion or data read sequence is cleared and the part goes into Sleep mode. When ENABLE
returns high, the part resumes normal operation.
Digital Output (open drain). This is the output of the V
DD
monitor reset generator. RESET is driven low
when a Power-on Reset orBrown-out condition is detected. See Section 1.0, AC Electrical Characteristics.
Digital Input. This input controls the analog input multiplexer to select one of two input channels.
This address is latched at the falling edge of the SCLK, which starts an A/Dconversion.
(0 = Input 1, 1 = Input 2).
Digital Input. This is the microPort serial clock input. The TC3401 comes out of Sleep mode and a
conversion cycle begins when this pin is driven low. After the conversion starts, each additional
falling edge (up to six) detected on SCLK for t
4
seconds reduces the A/D resolution by one bit. When
the conversion is complete, the data word can be shifted out on the SDAT pin by clocking the SCLK
pin.
Power Supply Input.
2
IN1-
3
IN2+
4
IN2-
5
PFI
6
V
TH
7
REF
IN
8
9
GND
REF
OUT
10
SDAT
11
PFO
12
ENABLE
13
RESET
14
ADDR
15
SCLK
16
V
DD
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PDF描述 |
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| TC3401 | CONNECTOR ACCESSORY |
| TC3401VPE | CONNECTOR ACCESSORY |
| TC3402VQR | +1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter |
| TC3402VPE | +1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC3401VQRTR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit Sigma-Delta 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 |
| TC3402 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:+1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter |
| TC3402VPE | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit Sigma-Delta 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 |
| TC3402VQR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit Sigma-Delta 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 |
| TC3402VQRTR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit Sigma-Delta 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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