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參數(shù)資料
| 型號： | MAX5525ETC+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/23頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT DUAL ULP 12-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 75 |
| 設(shè)置時間： | 660µs |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 1.35W |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 12-WQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 12-TQFN-EP（4x4） |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 2 電壓，單極；2 電壓，雙極 |
| 采樣率（每秒）： | * |
Power Modes
The MAX5522–MAX5525 feature two power modes to
conserve power during idle periods. In normal opera-
tion, the device is fully operational. In shutdown mode,
the device is completely powered down, including the
internal voltage reference in the MAX5523/MAX5525.
The MAX5523/MAX5525 also offer a standby mode in
which all circuitry is powered down except the internal
voltage reference. Standby mode keeps the reference
powered up while the remaining circuitry is shut down,
allowing it to be used as a system reference. It also
helps reduce the wake-up delay by not requiring the ref-
erence to power up when returning to normal operation.
Shutdown Mode
The MAX5522–MAX5525 feature a software-program-
mable shutdown mode that reduces the supply current
and the interface input-current to 0.18A (max). Writing
an input control word with control bits C[3:0] = 1110
(Table 2) places the device in shutdown mode. In shut-
down, the MAX5522/MAX5524 reference input and DAC
output buffers go high impedance. Placing the MAX5523/
MAX5525 into shutdown turns off the internal reference
and the DAC output buffers go high impedance. The seri-
al interface still remains active for all devices.
Table 2 shows several commands that bring the
MAX5522–MAX5525 back to normal operation. The
power-up time from shutdown is required before the
DAC outputs are valid.
Note: For the MAX5523/MAX5525, standby mode can-
not be entered directly from shutdown mode. The
device must be brought into normal operation first
before entering standby mode.
Standby Mode (MAX5523/MAX5525 Only)
The MAX5523/MAX5525 feature a software-program-
mable standby mode that reduces the typical supply
current to 3A (max). Standby mode powers down all
circuitry except the internal voltage reference. Place
the device in standby mode by writing an input control
word with control bits C[3:0] = 1100 (Table 2). The
internal reference and serial interface remain active
while the DAC output buffers go high impedance.
For the MAX5523/MAX5525, standby mode cannot be
entered directly from shutdown mode. The device must
be brought into normal operation first before entering
standby mode. To enter standby from shutdown, issue
the command to return to normal operation followed
immediately by the command to go into standby.
Table 2 shows several commands that bring the
MAX5523/MAX5525 back to normal operation. When
transitioning from standby mode to normal operation,
only the DAC power-up time is required before the DAC
outputs are valid.
Reference Input
The MAX5522/MAX5524 accept a reference with a volt-
age range extending from 0 to VDD. The output voltage
(VOUT) is represented by a digitally programmable volt-
age source as:
VOUT = (VREF x N / 256) x gain
where N is the numeric value of the DAC’s binary input
code (0 to 1023), VREF is the reference voltage, gain is
the externally set voltage gain for the MAX5524, and
gain is one for the MAX5522.
In shutdown mode, the reference input enters a high-
impedance state with an input impedance of 2.5G
(typ).
Reference Output
The MAX5523/MAX5525 internal voltage reference is
software configurable to one of four voltages. Upon
power-up, the default reference voltage is 1.214V.
Configure the reference voltage using D8 and D9 data
bits (Table 3) when the control bits are as follows C[3:0]
= 1100, 1101, or 1110 (Table 2). VDD must be kept at a
minimum of 200mV above VREF for proper operation.
MAX5522–MAX5525
Dual, Ultra-Low-Power,
10-Bit, Voltage-Output DACs
16
______________________________________________________________________________________
Table 3. Reference Output Voltage
Programming
D9
D8
REFERENCE VOLTAGE (V)
0
1.214
0
1
1.940
1
0
2.425
1
3.885
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| MAX5525ETC+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5525ETC+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5525ETC-T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5527EVKIT | 功能描述:數(shù)字電位計 IC Evaluation Kit for the MAX5527 RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5527GTA | 制造商:Maxim Integrated Products 功能描述:ONE-TIME PROGRAMMABLE LINEAR-TAPER - Rail/Tube |
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