參數(shù)資料
型號： MAX1263AEEG+T
廠商： Maxim Integrated Products
文件頁數(shù)： 7/20頁
文件大?。?/td> 0K
描述： IC ADC 12BIT 250KSPS 24-QSOP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
位數(shù)： 12
采樣率（每秒）： 250k
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 5.1mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-SSOP（0.154"，3.90mm 寬）
供應商設備封裝： 24-QSOP
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 4 個單端，單極；4 個單端，雙極；2 個偽差分，單極；2 個偽差分，雙極
MAX1261/MAX1263
250ksps, +3V, 8-/4-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
______________________________________________________________________________________
15
Table 4. Channel Selection for Pseudo-Differential Operation (SGL/DIF = 0)
*Channels CH4–CH7 apply to MAX1261 only.
A1
CH0
0
+
0
-
0
A0
0
-
1
CH2
CH4*
+
0
1
0
+
-
CH3
0
CH1
CH7*
CH6*
1
CH5*
1
-
+
0
A2
+
-
1
0
1
-
+
1
0
-
1
+
1
+
-
Applications Information
Power-On Reset
When power is first applied, internal power-on reset cir-
cuitry activates the MAX1261/MAX1263 in external
clock mode and sets INT high. After the power supplies
stabilize, the internal reset time is 10s, and no conver-
sions should be attempted during this phase. When
using the internal reference, 500s is required for VREF
to stabilize.
Internal and External Reference
The MAX1261/MAX1263 can be used with an internal
or external reference voltage. An external reference
can be connected directly to REF or REFADJ.
An internal buffer is designed to provide +2.5V at REF for
both the MAX1261 and the MAX1263. The internally
trimmed +1.22V reference is buffered with a +2.05V/V
gain.
Internal Reference
With the internal reference, the full-scale range is +2.5V
with unipolar inputs and ±1.25V with bipolar inputs. The
internal reference buffer allows for small adjustments
(±100mV) in the reference voltage (Figure 7).
Note that the reference buffer must be compensated
with an external capacitor (4.7F min) connected
between REF and GND to reduce reference noise and
switching spikes from the ADC. To further minimize
noise on the reference, connect a 0.01F capacitor
between REFADJ and GND.
External Reference
With both the MAX1261 and MAX1263, an external ref-
erence can be placed at either the input (REFADJ) or
the output (REF) of the internal reference buffer amplifier.
Using the REFADJ input makes buffering the external
reference unnecessary. The REFADJ input impedance
is typically 17k
.
Table 5. Data-Bus Output (8 + 4 Parallel
Interface)
+3V
330k
50k
GND
50k
0.01
F
4.7
F
REFADJ
REF
MAX1261
MAX1263
Figure 7. Reference Voltage Adjustment with External
Potentiometer
D0
PIN
BIT 0 (LSB)
HBEN = 0
BIT 8
HBEN = 1
BIT 1
BIT 9
D1
BIT 2
BIT 10
BIT 3
BIT 11 (MSB)
D3
D2
BIT 5
BIT 11
D5
BIT 6
BIT 11
BIT 7
BIT 11
D7
D6
BIT 4
BIT 11
D4
0
BIPOLAR
(UNI/BIP = 0)
UNIPOLAR
(UNI/BIP = 1)
相關PDF資料
PDF描述
MS27468E23F55PA CONN RCPT 55POS JAM NUT W/PINS
MS3106F28-21SW CONN PLUG 37POS STRAIGHT W/SCKT
VI-J3W-MX-F3 CONVERTER MOD DC/DC 5.5V 75W
MS27496E11F98P CONN RCPT 6POS BOX MNT W/PINS
VI-2WD-MX-F1 CONVERTER MOD DC/DC 85V 75W
相關代理商/技術參數(shù)
參數(shù)描述
MAX1263BCEG 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構:Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1263BCEG+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 2.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構:Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1263BCEG+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 250ksps 2.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構:Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1263BCEG-T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構:Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1263BEEG 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構:Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*