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參數(shù)資料
| 型號(hào)： | LTC1592BCG#TR |
| 廠(chǎng)商： | Linear Technology |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC D/A CONV 16BIT SOFTSPAN16SSOP |
| 產(chǎn)品培訓(xùn)模塊： | LTC275x 18-Bit DAC |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 系列： | SoftSpan™ |
| 設(shè)置時(shí)間： | 2µs |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類(lèi)型： | 2 電流，單極；2 電流，雙極 |
| 采樣率（每秒）： | * |
| 其它名稱(chēng)： | LTC1592BCGTR |
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9
LTC1588/LTC1589/LTC1592
1588992fa
OPERATIO
U
Serial Interface
When the CS/LD is brought to a logic low, the data on the
SDI input is loaded into the shift register on the rising edge
of the clock. A 4-bit command word (C3 C2 C1 C0),
followed by four “don’t care” bits and 16 data bits
(MSB-first) is the minimum loading sequence required for
the LTC1588/LTC1589/LTC1592. When the CS/LD is
brought to a logic high, the clock is disabled internally and
the command word is executed.
If no daisy-chaining is required, the input stream can be
24-bit wide as shown in Figure 1a. The first four bits are the
command word, followed by four “don’t care” bits, then a
16-bit data word. The last four bits (LSBs) of this 16-bit
data word are don’t cares for the LTC1588. For the
LTC1589, the last 2 bits of the 16-bit data word are don’t
cares.
If daisy-chaining is required or the input needs to be
written in two 16-bit wide segments, then the input stream
must be 32-bit wide and the first 8 bits loaded are “don’t
care” bits. The remaining bits work the same as a 24-bit
stream which is described in the previous paragraph. The
output of the internal 32-bit shift register is available on the
SDO pin 32 clock cycles later.
Multiple LTC1588/LTC1589/LTC1592s may be daisy-
chained together by connecting the SDO pin to the SDI pin
of the next IC. The clock and CS/LD signals should remain
common to all ICs in the daisy-chain. The serial data is
clocked to all ICs, then the CS/LD signal is pulled high to
update all of them simultaneously.
Power-On Reset and Clear
When the power supply is first turned on, the LTC1588/
LTC1589/LTC1592 will power up in 5V unipolar mode (C3
C2 C1 C0 = 1000). All the internal registers are set to zeros
and the DAC is set to zero code.
The LTC1588/LTC1589/LTC1592 must first be pro-
grammed in either unipolar or bipolar mode. There are six
operating modes available and can be software-pro-
grammed by the command word. When a CLR signal is
brought to low, it clears all internal registers to zero. The
DAC output voltage goes to zero volts. If an update DAC
command (C3 C2 C1 C0 = 0001) is issued immediately
after the CLR signal, the DAC output remains at zero volts.
If a CLR signal is given within a 100ns interval immediately
after CS/LD goes high, the user should reload the output
range.
Output Range Programming
There are two output ranges available in unipolar mode
and four output ranges available in bipolar mode. See
Function Table for details. All output ranges are with re-
spect to a 5V reference input. When changing the LTC1588/
LTC1589/LTC1592 to a new mode, the command word
and data are given at the same time (24 or 32 bit). When
C3
COMMAND
DON’T CARE
DATA (16 BITS)
C2
C1
C0
X
D13
D14
D15
D12 D11 D10 D9
D8
D7 D6
D5
D4
D3
D2
D1 D0
1588992 TD2
MSB
LSB
C3
COMMAND
DON’T CARE
DATA (14 BITS + 2 DON’T-CARE BITS)
C2
C1
C0
X
D13 D12 D11 D10 D9
D8
D7 D6
D5
D4
D3
D2
D1 D0
X
1588992 TD3
MSB
LSB
C3
COMMAND
DON’T CARE
DATA (12 BITS + 4 DON’T-CARE BITS)
C2
C1
C0
X
D11 D10 D9
D8
D7 D6
D5
D4
D3
D2
D1 D0
X
XX
1588992 TD4
MSB
LSB
INPUT WORD (LTC1592)
INPUT WORD (LTC1589)
INPUT WORD (LTC1588)
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| LTC1592BIG | 功能描述:IC D/A CONV 16BIT SOFTSPAN16SSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:SoftSpan™ 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 |
| LTC1592BIG#PBF | 功能描述:IC D/A CONV 16BIT SOFTSPAN16SSOP 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:SoftSpan™ 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 |
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