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參數資料
| 型號： | TSA1204IFT-E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | ADC |
| 英文描述： | 2-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | 7 X 7 MM, PLASTIC, TQFP-48 |
| 文件頁數： | 1/31頁 |
| 文件大小： | 435K |
| 代理商： | TSA1204IFT-E |
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December 2006
Rev 4
1/31
31
TSA1204
Dual channel 12-bit 20Msps 120mW A/D converter
Features
■ 0.5 Msps to 20 Msps sampling frequency
■ Adaptive power consumption: 120 mW @
20 Msps, 95 mW@10 Msps
■ Single supply voltage: 2.5 V
■ Independent supply for CMOS output stage
with 2.5 V/3.3 V capability
■ ENOB=11.2 @ Nyquist
■ SFDR= -81.5 dBc @ Nyquist
■ 1GHz analog bandwidth track-and-hold
■ Common clocking between channels
■ Dual simultaneous sample and hold inputs
■ Multiplexed outputs
■ Built-in reference voltage with external bias
capability.
Description
The TSA1204 is a new generation of high speed,
dual-channel analog-to-digital converters
implemented in a mainstream 0.25 m CMOS
technology yielding high performance and very
low power consumption.
The TSA1204 is specifically designed for
applications requiring very low noise floor, high
SFDR and good insulation between channels. It is
based on a pipeline structure and digital error
correction to provide excellent static linearity and
over 11.2 effective bits at FS=20 Msps, and
Fin=10 MHz.
For each channel, an integrated voltage reference
simplifies the design and minimizes external
components. It is nevertheless possible to use the
circuit with external references.
The ADC outputs are multiplexed in a common
bus with a small number of pins. A tri-state
capability is available for the outputs, allowing
chip selection.
The inputs of the ADC must be differentially
driven.
The TSA1204 is available in extended (-40° C to
+85° C) temperature range, in a small 48-pin
TQFP package.
Applications
■ Medical imaging and ultrasound
■ 3G base station
■ I/Q signal processing applications
■ High speed data acquisition system
■ Portable instrumentation
SELEC
T
CLK
DG
ND
REF
P
Q
AGND
AVCC
DG
ND
DVCC
IN
C
M
Q
REF
M
Q
G
NDBI
D5
D6
D7
D8
D9
D10
D11(MSB)
AVCCB
index
corner
1
2
3
4
5
6
7
8
9
10
11
32
31
30
29
28
27
26
13
14 15
16
17
18 19
20
21
22
47
25
33
12
23
24
35
34
36
48
44 43
42
41
40
39
38 37
46
45
TSA1204
VCCBE
GNDBE
AGND
INI
AGND
IPOL
AGND
INBQ
INIB
AGND
INQ
D2
D3
REF
M
I
D0(LSB)
OEB
AVCC
REF
P
I
IN
C
M
I
AVCC
VCC
B
I
G
NDBE
VCCBI
D1
VC
CBE
D4
7x7mm TQFP48
CL
K
D
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