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參數(shù)資料
| 型號(hào)： | MAX1497EAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/33頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 3 1/2DIG W/LED DVR 28-SSO |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 46 |
| 位數(shù)： | 3.5 位 |
| 采樣率（每秒）： | 5 |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 1 個(gè)差分，雙極 |
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MAX1497/MAX1499
3.5- and 4.5-Digit, Single-Chip ADCs with LED
Drivers and C Interface
10
______________________________________________________________________________________
Pin Description
PIN
MAX1497
MAX1499
NAME
FUNCTION
131
VNEG
-2.5V Charge-Pump Voltage-Output. Connect a 0.1F capacitor to GND.
232
REF-
Negative Reference Voltage Input. For internal reference operation, connect REF- to
GND. For external reference operation, bypass REF- to GND with a 0.1F capacitor and
set VREF- from -2.2V to +2.2V, provided VREF+ > VREF-.
31
REF+
Positive Reference Voltage Input. For internal reference operation, connect a 4.7F
capacitor from REF+ to GND. For external reference operation, bypass REF+ to GND
with a 0.1F capacitor and set VREF+ from -2.2V to +2.2V, provided VREF+ > VREF-.
42
AIN+
Positive Analog Input. Positive side of fully differential analog input. Bypass AIN+ to GND
with a 0.1F or greater capacitor.
53
AIN-
Negative Analog Input. Negative side of fully differential analog input. Bypass AIN- to
GND with a 0.1F or greater capacitor.
64
ISET
Segment Current Controller. Connect to ground through a resistor to set the segment
current. See Table 6 for segment current selection.
75
GND
Ground
8—
VDD
Analog and Digital Circuit Supply Voltage. Connect VDD to a +2.7V to +5.25V power
supply. Bypass VDD to GND with a 0.1F and a 4.7F capacitor.
98
CLK
External Clock Input. When the EXTCLK register bit is set to one, CLK is the master clock
input (frequency = 4.9152MHz) for the modulator and the filter. When the EXTCLK
register bit is reset to zero, the internal clock is used. Connect CLK to GND or DVDD
(MAX1499) or VDD (MAX1497) when the internal oscillator is used.
10
9
EOC
Active-Low End-of-Conversion Logic Output. A logic low at EOC indicates that a new
ADC result is available in the ADC result register.
11
10
CS
Active-Low Chip Select Input. Forcing CS low activates the serial interface.
12
11
DIN
Serial Data Input. Data present at DIN is shifted into the internal registers in response to
a rising edge at SCLK when CS is low.
13
12
SCLK
Serial Clock Input. Apply an external clock to SCLK to facilitate communication through
the serial bus. SCLK may idle high or low.
14
13
DOUT
Serial Data Output. DOUT presets serial data in response to register queries. Data shifts
out on the falling edge of SCLK. DOUT goes high impedance when CS is high.
15
14
DIG0
Digit 0 Driver
16
15
DIG1
Digit 1 Driver
17
16
GLED
Ground for LED-Display Segment Driver
18
17
DIG2
Digit 2 Driver
19
18
DIG3
Digit 3 Driver
20
SEGA
Segment A Driver
21
SEGB
Segment B Driver
22
SEGC
Segment C Driver
23
SEGD
Segment D Driver
24
SEGE
Segment E Driver
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1497EAI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 3.5 Digit ADC w/LED Drivers RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1497EAI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 3.5 Digit ADC w/LED Drivers RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1497EAI-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(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1497EPI | 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(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1497EPI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 3.5 Digit ADC w/LED Drivers RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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