參數(shù)資料
型號: EVAL-AD5780SDZ
廠商: Analog Devices Inc
文件頁數(shù): 17/28頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD5780
設(shè)計(jì)資源: CN-0200 Circuit
標(biāo)準(zhǔn)包裝: 1
DAC 的數(shù)量: 1
位數(shù): 18
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,和 SPI?
設(shè)置時(shí)間: 2.5µs
DAC 型: 電壓
工作溫度: -40°C ~ 125°C
已供物品: 板,纜線,CD
已用 IC / 零件: AD5780
相關(guān)產(chǎn)品: AD5780ACPZ-ND - IC DAC VOLT OUT 18BIT 24LFCSP
AD5780
Data Sheet
Rev. E | Page 24 of 28
Gain of Two Configuration (×2 Gain Mode)
Figure 52 shows an output amplifier configured for a gain of
two. The gain is set by the internal matched 6.8 k resistors,
which are exactly twice the DAC resistance, having the effect
of removing an offset from the input bias current of the external
amplifier. In this configuration, the output spans from 2 × VREFN
VREFP to VREFP. This configuration is used to generate a bipolar
output span from a single-ended reference input, with VREFN =
0 V. For this mode of operation, the RBUF bit of the control
register must be cleared to Logic 0.
A1
6.8k 6.8k
R1
10pF
RFB
18-BIT
DAC
VREFN
VREFP
AD5780
AD8675,
ADA4898-1,
ADA4004-1
RFB
INV
VOUT
09649-
050
Figure 52. Output Amplifier in Gain-of-Two Configuration
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