參數資料
| 型號： | MCP4802-E/SN |
| 廠商： | Microchip Technology |
| 文件頁數： | 1/19頁 |
| 文件大小： | 0K |
| 描述： | DAC 8BIT DUAL SPI/VREF 8SOIC |
| 標準包裝： | 100 |
| 設置時間： | 4.5µs |
| 位數： | 8 |
| 數據接口： | 串行，SPI? |
| 轉換器數目： | 2 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOICN |
| 包裝： | 管件 |
| 輸出數目和類型： | 2 電壓，單極；2 電壓，雙極 |
| 采樣率（每秒）： | * |
| 產品目錄頁面： | 673 (CN2011-ZH PDF) |
2010 Microchip Technology Inc.
DS22249A-page 1
MCP4802/4812/4822
Features
MCP4802: Dual 8-Bit Voltage Output DAC
MCP4812: Dual 10-Bit Voltage Output DAC
MCP4822: Dual 12-Bit Voltage Output DAC
Rail-to-Rail Output
SPI Interface with 20 MHz Clock Support
Simultaneous Latching of the Dual DACs
with LDAC pin
Fast Settling Time of 4.5 s
Selectable Unity or 2x Gain Output
2.048V Internal Voltage Reference
50 ppm/°C VREF Temperature Coefficient
2.7V to 5.5V Single-Supply Operation
Extended Temperature Range: -40°C to +125°C
Applications
Set Point or Offset Trimming
Sensor Calibration
Precision Selectable Voltage Reference
Portable Instrumentation (Battery-Powered)
Calibration of Optical Communication Devices
Description
The MCP4802/4812/4822 devices are dual 8-bit, 10-bit
and 12-bit buffered voltage output Digital-to-Analog
Converters (DACs), respectively. The devices operate
from a single 2.7V to 5.5V supply with SPI compatible
Serial Peripheral Interface.
The devices have a high precision internal voltage
reference (VREF = 2.048V). The user can configure the
full-scale range of the device to be 2.048V or 4.096V by
setting the Gain Selection Option bit (gain of 1 of 2).
Each DAC channel can be operated in Active or
Shutdown mode individually by setting the Configuration
register bits. In Shutdown mode, most of the internal
circuits in the shutdown channel are turned off for power
savings and the output amplifier is configured to present
a known high resistance output load (500 k
typical.
The
devices
include
double-buffered
registers,
allowing synchronous updates of two DAC outputs
using the LDAC pin. These devices also incorporate a
Power-on Reset (POR) circuit to ensure reliable power-
up.
The devices utilize a resistive string architecture, with
its inherent advantages of low DNL error, low ratio
metric temperature coefficient and fast settling time.
These devices are specified over the extended
temperature range (+125°C).
The devices provide high accuracy and low noise
performance for consumer and industrial applications
where calibration or compensation of signals (such as
temperature, pressure and humidity) are required.
The MCP4802/4812/4822 devices are available in the
PDIP, SOIC and MSOP packages.
Package Types
Related Products(1)
P/N
DAC
Resolution
No. of
Channels
Voltage
Reference
(VREF)
MCP4801
8
1
Internal
(2.048V)
MCP4811
10
1
MCP4821
12
1
MCP4802
8
2
MCP4812
10
2
MCP4822
12
2
MCP4901
8
1
External
MCP4911
10
1
MCP4921
12
1
MCP4902
8
2
MCP4912
10
2
MCP4922
12
2
Note 1: The products listed here have similar
AC/DC performances.
M
C
P48X2
8-Pin PDIP, SOIC, MSOP
1
2
3
4
8
7
6
5
CS
SCK
SDI
VDD
VSS
VOUTA
VOUTB
LDAC
MCP4802: 8-bit dual DAC
MCP4812: 10-bit dual DAC
MCP4822: 12-bit dual DAC
8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter
with Internal VREF and SPI Interface
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MCP4802T-E/MS | 功能描述:數模轉換器- DAC Dual 8-bit DAC w/SPI interface intnl Vref RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MCP4811-E/MC | 功能描述:數模轉換器- DAC Sngl 10bit DAC w/SPI interface intnl Vref RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MCP4811-E/MS | 功能描述:數模轉換器- DAC Sngl 10bit DAC w/SPI interface intnl Vref RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MCP4811-E/P | 功能描述:數模轉換器- DAC Sngl 10bit DAC w/SPI interface intnl Vref RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MCP4811-E/SN | 功能描述:數模轉換器- DAC Sngl 10bit DAC w/SPI interface intnl Vref RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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