- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄8564 > AD5764RBSUZ-REEL7 (Analog Devices Inc)IC DAC QUAD 16BIT VOUT 32-TQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | AD5764RBSUZ-REEL7 |
| 廠(chǎng)商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 20/32頁(yè) |
| 文件大小： | 0K |
| 描述： | IC DAC QUAD 16BIT VOUT 32-TQFP |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 產(chǎn)品變化通告： | AD5764(R), AD5744R Product Change 04/Sept/2009 |
| 設(shè)計(jì)資源： | High Accuracy, Bipolar Voltage Output Digital-to-Analog Conversion Using AD5764 (CN0006) |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 設(shè)置時(shí)間： | 8µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 雙 ± |
| 功率耗散（最大）： | 275 mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 32-TQFP |
| 供應(yīng)商設(shè)備封裝： | 32-TQFP（7x7） |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類(lèi)型： | 4 電壓，雙極 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)當(dāng)前第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)
Data Sheet
AD5764R
Rev. D | Page 27 of 32
DESIGN FEATURES
ANALOG OUTPUT CONTROL
In many industrial process control applications, it is vital that
the output voltage be controlled during power-up and during
brownout conditions. When the supply voltages are changing,
the VOUTx pins are clamped to 0 V via a low impedance path.
To prevent the output amp from being shorted to 0 V during
this time, Transmission Gate G1 is also opened (see Figure 42).
G1
G2
RSTOUT
RSTIN
VOUTA
AGNDA
VOLTAGE
MONITOR
AND
CONTROL
06064-
063
Figure 42. Analog Output Control Circuitry
These conditions are maintained until the power supplies stabilize
and a valid word is written to the data register. G2 then opens, and
G1 closes. Both transmission gates are also externally controllable
by using the reset in (RSTIN) control input. For example, if RSTIN
is driven from a battery supervisor chip, the RSTIN input is driven
low to open G1 and close G2 on power-off or during a brownout.
Conversely, the on-chip voltage detector output (RSTOUT) is
also available to the user to control other parts of the system.
The basic transmission gate functionality is shown in Figure 42.
DIGITAL OFFSET AND GAIN CONTROL
The AD5764R incorporates a digital offset adjust function with
a ±16 LSB adjust range and 0.125 LSB resolution. The gain register
allows the user to adjust the AD5764R full-scale output range.
The full-scale output can be programmed to achieve full-scale
ranges of ±10 V, ±10.25 V, and ±10.5 V. A fine gain trim is also
available.
PROGRAMMABLE SHORT-CIRCUIT PROTECTION
The short-circuit current (ISC) of the output amplifiers can be pro-
grammed by inserting an external resistor between the ISCC
pin and the PGND pin. The programmable range for the current
is 500 A to 10 mA, corresponding to a resistor range of 120 k
to 6 k. The resistor value is calculated as follows:
R ≈
SC
I
60
If the ISCC pin is left unconnected, the short circuit current
limit defaults to 5 mA. It should be noted that limiting the
short-circuit current to a small value can affect the slew rate of
the output when driving into a capacitive load. Therefore, the
value of the short-circuit current that is programmed should
take into account the size of the capacitive load being driven.
DIGITAL I/O PORT
The AD5764R contains a 2-bit digital I/O port (D1 and D0). These
bits can be configured independently as inputs or outputs and
can be driven or have their values read back via the serial interface.
The I/O port signals are referenced to DVCC and DGND. When
configured as outputs, they can be used as control signals to
multiplexers or can be used to control calibration circuitry
elsewhere in the system. When configured as inputs, the logic
signals from limit switches, for example, can be applied to D0
and D1 and can be read back using the digital interface.
DIE TEMPERATURE SENSOR
The on-chip die temperature sensor provides a voltage output
that is linearly proportional to the Celsius temperature scale.
Its nominal output voltage is 1.47 V at +25°C die temperature,
varying at 5 mV/°C, giving a typical output range of 1.175 V to
1.9 V over the full temperature range. Its low output impedance,
and linear output simplify interfacing to temperature control
circuitry and analog-to-digital converters (ADCs). The temper-
ature sensor is provided as more of a convenience than as a precise
feature; it is intended for indicating a die temperature change for
recalibration purposes.
LOCAL GROUND OFFSET ADJUST
The AD5764R incorporates a local ground offset adjust feature
that, when enabled in the function register, adjusts the DAC
outputs for voltage differences between the individual DAC ground
pins and the REFGND pin, ensuring that the DAC output voltages
are always referenced to the local DAC ground pin. For example,
if the AGNDA pin is at +5 mV with respect to the REFGND pin,
and VOUTA is measured with respect to AGNDA, a 5 mV error
results, enabling the local ground offset adjust feature to adjust
VOUTA by +5 mV, thereby eliminating the error.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-BNK-MU-S | CONVERTER MOD DC/DC 40V 200W |
| VI-263-IV | CONVERTER MOD DC/DC 24V 150W |
| VI-BWW-MX-S | CONVERTER MOD DC/DC 5.5V 75W |
| VE-26L-IV | CONVERTER MOD DC/DC 28V 150W |
| VE-J14-MW-S | CONVERTER MOD DC/DC 48V 100W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD5764RCSUZ | 功能描述:IC DAC QUAD 16BIT VOUT 32-TQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時(shí)間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類(lèi)型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱(chēng):MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD5764RCSUZ-REEL7 | 功能描述:IC DAC QUAD 16BIT VOUT 32-TQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 設(shè)置時(shí)間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:8 電壓，單極 采樣率（每秒）:* |
| AD5764SSUZ-EP-RL7 | 功能描述:16 Bit Digital to Analog Converter 4 32-TQFP (7x7) 制造商:analog devices inc. 系列:iCMOS? 包裝:剪切帶（CT） 零件狀態(tài):有效 位數(shù):16 數(shù)模轉(zhuǎn)換器數(shù):4 建立時(shí)間:10μs 輸出類(lèi)型:Voltage - Buffered 差分輸出:無(wú) 數(shù)據(jù)接口:SPI，DSP 參考類(lèi)型:外部 電壓 - 電源，模擬:±11.4 V ~ 16.5 V 電壓 - 電源，數(shù)字:2.7 V ~ 5.25 V INL/DNL（LSB）:±2（最大），±1（最大） 架構(gòu):R-2R 工作溫度:-55°C ~ 125°C 封裝/外殼:32-TQFP 供應(yīng)商器件封裝:32-TQFP（7x7） 標(biāo)準(zhǔn)包裝:1 |
| AD5765 | 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Complete Quad, 16-Bit, High Accuracy, Serial Input, ±5V DACs |
| AD5765BSUZ | 功能描述:IC DAC 16BIT +/-5V QUAD 2LSB 32L RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-LCC（J 形引線(xiàn)） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類(lèi)型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。