参数资料
型号: LTC1099CSW
厂商: Linear Technology
文件页数: 1/16页
文件大小: 0K
描述: IC A/D CONV 8BIT HI-SPEED 20SOIC
标准包装: 38
位数: 8
采样率(每秒): 400k
数据接口: 并联
转换器数目: 3
功率耗散(最大): 55mW
电压电源: 单电源
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC
包装: 管件
输入数目和类型: 1 个单端,单极
其它名称: LTC1099CS
LTC1099
1
DESCRIPTIO
U
FEATURES
The LTC
1099 is a high speed microprocessor compatible
8-bit analog-to-digital converter (A/D). An internal sample-
and-hold (S/H) allows the A/D to convert inputs up to the
full Nyquist limit. With a conversion rate of 2.5
s, this
allows 156kHz 5VP-P input signals or slew rates as high as
2.5V/
s, to be digitized without the need for an external
S/H.
Two modes of operation, Read (RD) mode and Write-Read
(WR-RD) mode, allow easy interface with processors. All
timing is internal and edge sensitive which eliminates the
need for external pulse shaping circuits. The Stand-Alone
(SA) mode is convenient for those applications not involv-
ing a processor.
Data outputs are latched with three-state control to allow
easy interface to a processor data bus or I/O port. An
overflow output (OFL) is provided to allow cascading for
higher resolution.
s
Resolution: 8-Bits
s
Conversion Time: 2.5
s (RD Mode)
2.5
s (WR/RD Mode)
s
Slew Rate Limit (Internal S/H): 2.5V/
s
Low Power: 75mW Max
s
Total Unadjusted Error
LTC1099:
±1 LSB
LTC1099A:
±0.75 LSB
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Built-In Sample-and-Hold
s
No Missing Codes
s
No User Trims Required
s
All Timing Inputs Edge Sensitive for Easy Processor
Interface
s
Fast Conversion Time: 2.5
s
Latched Three-State Outputs
s
Single 5V Operation
s
No External Clock
s
Overflow Output Allows Cascading
s
TC Input Allows User Adjustable Conversion Time
s
0.3" Wide 20-Pin PDIP
High Speed 8-Bit A/D
Converter with Built-In
Sample-and-Hold
INPUT FREQUENCY (kHz)
1
SIGNAL-TO-NOISE
RATIO,
SNR
(dB)
–36
–38
–40
–42
–44
–46
–48
–50
–52
10
100
1099 G08
TA = 25°C
TC = 2.5s
Infinite Hold Time Sample-and-Hold (TACQ = 240ns)
Signal-to-Noise Ratio (SNR) vs Input Frequency
KEY SPECIFICATIO S
U
TYPICAL APPLICATION
U
17
16
15
14
5
4
3
2
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
B1
B2
B3
B4
B5
B6
B7
B8
LTC1099
1
2
3
4
5
6
7
8
REF +
REF
V +
V
IO
+
SAMPLE
HOLD
VIN
MODE
WR/RDY
RD
CS
GND
REF
VCC
REF+
7
1
6
8
13
10
15
17
14
18
19
3
2
7
6
4
11
12
20
10k
2.5k
15V
–15V
5V
VOUT
LT1022
AM6012
1099 TA01
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