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參數資料
| 型號： | MAX1297AEEG+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/19頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 265KSPS 24-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 位數： | 12 |
| 采樣率（每秒）： | 265k |
| 數據接口： | 并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 667mW |
| 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： | 管件 |
| 輸入數目和類型： | 2 個單端，單極；2 個單端，雙極；1 個偽差分，單極；1 個偽差分，雙極 |
General Description
The MAX1295/MAX1297 low-power, 12-bit analog-to-
digital converters (ADCs) feature a successive-approxi-
mation ADC, automatic power-down, fast wake-up
(2s), an on-chip clock, +2.5V internal reference, and a
high-speed 12-bit parallel interface. They operate with
a single +2.7V to +3.6V analog supply.
Power consumption is only 5.4mW at the maximum
sampling rate of 265ksps. Two software-selectable
power-down modes enable the MAX1295/MAX1297 to
be shut down between conversions; accessing the par-
allel interface returns them to normal operation.
Powering down between conversions can reduce sup-
ply current below 10A at lower sampling rates.
Both devices offer software-configurable analog inputs
for unipolar/bipolar and single-ended/pseudo-differen-
tial operation. In single-ended mode, the MAX1295 has
six input channels and the MAX1297 has two (three
input channels and one input channel, respectively,
when in pseudo-differential mode).
Excellent dynamic performance and low power, combined
with ease of use and small package size, make these con-
verters ideal for battery-powered and data-acquisition
applications or for other circuits with demanding power-
consumption and space requirements.
The MAX1295/MAX1297 tri-states INT when CS goes high.
Refer to MAX1265/MAX1267 if tri-stating INT is not desired.
The MAX1295 is offered in a 28-pin QSOP package, while
the MAX1297 comes in a 24-pin QSOP. For pin-compati-
ble +5V, 12-bit versions, refer to the MAX1294/MAX1296
data sheet.
Applications
Industrial Control Systems
Data Logging
Energy Management
Patient Monitoring
Data-Acquisition Systems
Touchscreens
Features
12-Bit Resolution, ±0.5 LSB Linearity
+3V Single-Supply Operation
Internal +2.5V Reference
Software-Configurable Analog Input Multiplexer
6-Channel Single-Ended/
3-Channel Pseudo-Differential (MAX1295)
2-Channel Single-Ended/
1-Channel Pseudo-Differential (MAX1297)
Software-Configurable Unipolar/Bipolar
Analog Inputs
Low Current
1.9mA (265ksps)
1.0mA (100ksps)
400A (10ksps)
2A (Shutdown)
Internal 3MHz Full-Power Bandwidth Track/Hold
Parallel 12-Bit Interface
Small Footprint
28-Pin QSOP (MAX1295)
24-Pin QSOP (MAX1297)
MAX1295/MAX1297
265ksps, +3V, 6-/2-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
________________________________________________________________ Maxim Integrated Products
1
19-1530; Rev 3; 12/02
EVALUATION
KIT
AVAILABLE
Ordering Information
Pin Configurations
Typical Operating Circuits appear at end of data sheet.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D10
D11
VDD
REF
REFADJ
GND
CS
COM
CH0
CH1
CH2
CH3
CH4
CH5
CLK
WR
RD
INT
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
QSOP
TOP VIEW
MAX1295
Pin Configurations continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
INL
(LSB)
MAX1295ACEI
0
°C to +70°C
28 QSOP
±0.5
MAX1295BCEI
0
°C to +70°C
28 QSOP
±1
MAX1295AEEI
-40
°C to +85°C
28 QSOP
±0.5
MAX1295BEEI
-40
°C to +85°C
28 QSOP
±1
MAX1297ACEG
0
°C to +70°C
24 QSOP
±0.5
MAX1297BCEG
0
°C to +70°C
24 QSOP
±1
MAX1297AEEG -40
°C to +85°C
24 QSOP
±0.5
MAX1297BEEG -40
°C to +85°C
24 QSOP
±1
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1297AEEG+ | 功能描述:模數轉換器 - ADC 12-Bit 2Ch 265ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX1297AEEG+T | 功能描述:模數轉換器 - ADC 12-Bit 2Ch 265ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX1297AEEG-T | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX1297BCEG | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| MAX1297BCEG+ | 功能描述:模數轉換器 - ADC 12-Bit 2Ch 265ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
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