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_______________Detailed Desc ription
The MAX5152/MAX5153 dual, 13-bit, voltage-output
DACs are easily configured with a 3-wire serial inter-
face. These devices include a 16-bit data-in/data-out
shift register, and each DAC has a double-buffered
input comprised of an input register and a DAC register
(see Functional Diagram. Both DACs use an inverted
R-2R ladder network that produces a weighted voltage
proportional to the input voltage value. Each DAC has
its own reference input to facilitate independent full-
scale values. Figure 1 depicts a simplified circuit dia-
gram of one of the two DACs.
Referenc e Inputs
The reference inputs accept both AC and DC values
with a voltage range extending from 0V to (V
DD
- 1.4V).
Determine the output voltage using the following equa-
tion:
V
OUT
= V
REF
x NB / 8192
where NB is the numeric value of the DAC’s binary input
code (0 to 8191) and V
REF
is the reference voltage.
The reference input impedance ranges from 14k
(1555
hex) to several giga ohms (with an input code of 0000
hex). This reference input capacitance is code depen-
dent and typically ranges from 15pF with an input code
of all zeros to 50pF with an input code of all ones.
Output Amplifier
The output amplifier’s inverting input is available to the
user, allowing force and sense capability for remote
sensing and specific gain configurations. The inverting
input can be connected to the output to provide a unity-
gain buffered output. The output amplifiers have a typi-
cal slew rate of 0.75V/μs and settle to 1/2LSB within
25μs, with a load of 10k
in parallel to 100pF. Loads
less than 2k
degrade performance.
M
Low-Power, Dual, 13-Bit Voltage-Output DACs
with Configurable Outputs
_______________________________________________________________________________________
9
______________________________________________________________Pin Desc ription
PIN
Analog Ground
DAC A Output Voltage
DAC A Output Amplifier Feedback Input. Inverting input of the output amplifier.
AGND
OUTA
FBA
1
2
3
FUNCTION
NAME
Reference for DAC A
REFA
CL
4
Chip-Select Input
CS
6
Serial Clock Input
Digital Ground
SCLK
DGND
8
9
Serial Data Input
DIN
7
Active-Low Clear Input. Resets all registers to zero. DAC outputs go to 0V.
5
Serial Data Output
User-Programmable Output
DOUT
UPO
10
11
Power-Down Lockout. The device cannot be powered down when
PDL
is low.
Reference Input for DAC B
PDL
12
DAC B Output Amplifier Feedback Input. Inverting input of the output amplifier.
DAC B Output Voltage
FBB
OUTB
14
15
Positive Power Supply
V
DD
16
REFB
13
OUT_
FB_
SHOWN FOR ALL 1s ON DAC
D0
D10
D11
D12
2R
2R
2R
2R
2R
R
R
R
REF_
AGND
Figure 1. Simplified DAC Circuit Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5152AEPE | CAP .0033UF 250V PEN FLM 1913 5% |
| MAX5152BCEE | Low-Power, Dual, 13-Bit Voltage-Output DACs with Configurable Outputs |
| MAX5153ACEE | Low-Power, Dual, 13-Bit Voltage-Output DACs with Configurable Outputs |
| MAX5153ACPE | Low-Power, Dual, 13-Bit Voltage-Output DACs with Configurable Outputs |
| MAX5153AEPE | Low-Power, Dual, 13-Bit Voltage-Output DACs with Configurable Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5152ACPE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 13-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 |
| MAX5152AEEE | 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 |
| MAX5152AEEE+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 13-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 |
| MAX5152AEEE+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 13-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 |
| MAX5152AEEE-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 |
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