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參數(shù)資料
| 型號： | MAX1011CEG+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 6BIT 90MSPS 24-QSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 位數(shù)： | 6 |
| 采樣率（每秒）： | 90M |
| 數(shù)據接口： | 并聯(lián) |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 215mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°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；2 個差分，單極 |
_______________Detailed Description
Converter Operation
The MAX1011 integrates a 6-bit analog-to-digital con-
verter (ADC), a buffered voltage reference, and oscilla-
tor circuitry. The ADC uses a flash conversion technique
to convert an analog input signal into a 6-bit parallel
digital output code. The MAX1011’s unique design
includes 63 fully differential comparators and a propri-
etary encoding scheme that ensures no more than
1LSB dynamic encoding error. The control logic inter-
faces easily to most digital signal processors (DSPs)
and microprocessors (Ps) with +3.3V CMOS-compati-
ble logic interfaces. Figure 1 shows the MAX1011 in a
typical application.
Programmable Input Amplifier
The MAX1011 has a programmable-gain input amplifier
with a -0.5dB bandwidth of 55MHz and a true differen-
tial input. To maximize performance in high-speed
systems, the amplifier has less than 3pF of input
capacitance. The input amplifier gain is programmed
via the GAIN pin to provide three possible input full-
scale ranges (FSRs) as shown in Table 1.
Single-ended and differential AC-coupled input circuit
examples are shown in Figures 2 and 3. Each of the
MAX1011
Low-Power, 90Msps, 6-Bit ADC
_______________________________________________________________________________________
5
Pin Description
PIN
Gain-Select Input. Sets input full-scale range: 125/250/500mVp-p (Table 1).
GAIN
1
FUNCTION
NAME
Positive Offset-Correction Compensation. Connect a 0.22F capacitor for AC-coupled inputs. Ground
pin 2 for DC-coupled inputs.
OCC+
2
Noninverting Analog Input
IN+
4
Negative Offset-Correction Compensation. Connect a 0.22F capacitor for AC-coupled inputs. Ground
pin 3 for DC-coupled inputs.
OCC-
3
+5V ±5% Supply. Bypass with a 0.01F capacitor to GND (pin 9).
VCC
6
Analog Ground
GND
9, 10,
12, 13
Inverting Analog Input
IN-
5
+5V ±5% Supply. Bypass with a 0.01F capacitor to GND (pin 10).
VCC
11
Digital Clock Output. Frames the output data.
DCLK
18
Digital Output Supply, +3.3V ±300mV. Bypass with a 47pF capacitor to OGND (pin 16).
VCCO
17
Digital Outputs 0–5. D5 is the most significant bit (MSB).
D0–D5
19–24
250
Open
125
VCC
GAIN
500
GND
INPUT FULL-SCALE RANGE
(mVp-p)
Table 1. Input Amplifier Programming
Positive Oscillator/Clock Input
TNK+
7
Negative Oscillator/Clock Input
TNK-
8
No Connection
N.C.
15
Digital Output Ground
OGND
16
+5V ±5% Supply. Bypass with a 0.01F capacitor to GND (pin 13).
VCC
14
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