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參數(shù)資料
| 型號(hào)： | HS7512 |
| 英文描述： | Double-Buffered 12-Bit Multiplying DAC |
| 中文描述： | 雙緩沖12位乘法DAC |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 96K |
| 代理商： | HS7512 |
Corporation
SIGNAL PROCESSING EXCELLENCE
116
Figure 1. Unipolar Operation
PIN ASSIGNMENTS
Pin 1 – FB
4
– Feedback Bipolar Operation
Pin 2 – LDTR – Ladder Termination
Pin 3 – FB
3
– Feedback Bipolar Operation
Pin 4 – V
REF
– Reference Voltage Input
Pin 5 – FB
1
– Feedback, Unipolar/Bipolar
Pin 6 – I
O1
– Current out into virtual ground
Pin 7 – I
O2
– Current out-complement of I
01
Pin 8 – V
SS
– Ground, Analog and DAC Register
Pin 9 – DB
11
– MSB, Data Bit 1
Pin 10 – DB
10
– Data Bit 2
Pin 11 – DB
9
– Data Bit 3
Pin 12 – DB
8
– Data Bit 4
Pin 13 – DB
7
– Data Bit 5
Pin 14 – DB
6
– Data Bit 6
Pin 15 – DB
5
– Data Bit 7
Pin 16 – DB
4
– Data Bit 8
3
– Data Bit 9
Pin 18 – DB
2
– Data Bit 10
Pin 19 – DB
1
– Data Bit 11
Pin 20 – DB
0
– LSB, Data Bit 12
Pin 21 – LDAC – Transfers data from input to
DAC register; a logic “0” latches data into
registers; a logic “1” allows data to change
(transfer to) register.
Pin 22 – CE – Chip Enable, active low
Pin 23 – LBE – Bit 12 to Bit 9 Enable
Pin 24 – MBE – Bit 8 to Bit 5 Enable
Pin 25 – HBE – Bit 4 to Bit 1 Enable
Pin 26 – V
DD2
– Supply Analog and DAC
Register
Pin 27 – V
SS1
– Ground input latches
Pin 28 – V
DD1
– Supply input latches
NOTE: Pins 8 and 27, and pins 26 and 28 must
be connected externally.
FEATURES…
The
SP7512
and
HS3120
are precision 12-bit
multiplying DACs with internal two-stage input
storage registers for easy interfacing with mi-
croprocessor busses. The DACs are implemented
as a one-chip CMOS circuit with a resistor
ladder network designed for 0.01% linearity
without laser trimming.
The input registers are sectioned into 3 seg-
ments of 4 bits each, all individually address-
able. The DAC-register, following the input
registers, is a parallel 12-bit register for holding
the DAC data while the input registers are up-
dated. Only the data held in the DAC register
determines the analog output value of the con-
verter.
The
SP7512
and
HS3120
have been designed
for great flexibility in connecting to bus-ori-
ented systems. The 12 data inputs are organized
into 3 independent addressable 4-bit input reg-
isters such that the DACs can be connected to
either a 4, 8 or 16-bit data bus. The control logic
of the DACs includes chip enable and latch
enable inputs for flexible memory mapping. All
controls are level-triggered to allow static or
dynamic operation.
A total of 5 output lines are provided on the
DACs to allow unipolar and bipolar output
connection with a minimum of external compo-
nents. The feedback resistor is internal. The
resistor ladder network termination is exter-
nally available, thus eliminating an external
resistor for the 1 LSB offset in bipolar mode.
The
SP7512
is available for use in commercial
and industrial temperature ranges, packaged in
VREF
VDD2
400
VDD1
+15V
DIGITAL
FB1
IO1
LDTR
+
-
IO2
FB4
FB3
VSS1
VSS
ROS
A
VOUT
CE
HBE
MBE
LBE
LDAC
SP7512
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HS7514 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:14-Bit Multiplying DACs |
| HS75150RJ | 制造商:Arcol 功能描述:HS75 Al house wirewoundresistor,150R 75W |
| HS7516 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:16-Bit Multiplying DACs |
| HS751KJ | 制造商:Arcol 功能描述:HS75 Al house wirewound resistor,1K 75W |
| HS751RJ | 制造商:Arcol 功能描述:HS75 Al house wirewound resistor,1R 75W |
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