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ST Microelectronics |
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TSA1001
10-BIT, 25MSPS, 35mW A/D CONVERTER
s 10-bit A/D converter in deep submicron
CMOS technology
s Ultra low power consumption: 35mW @
25Msps (10mW @ 5Msps)
s Single supply voltage: 2.5V
s Input range: 2Vpp differential
s 25Msps sampling frequency
s ENOB=9.7 @ Nyquist
s SFDR typically up to 72dB @ Nyquist
s Built-in reference voltage with external bias
capability
s STMicroelectronics 8, 10, 12 and 14-bits ADC
pinout compatibility
DESCRIPTION
The TSA1001 is a 10-bit, 25Msps sampling fre-
quency Analog to Digital converter using a CMOS
technology combining high performances and
very low power consumption.
The TSA1001 is based on a pipeline structure and
digital error correction to provide excellent static
linearity and go beyond 9.8 effective bits at
Fs=25Msps, and Fin=10MHz.
Especially designed for portable applications, the
TSA1001 only dissipates 35mW at 25Msps. When
running at lower sampling frequencies, even lower
consumption can be achieved.
A voltage reference is integrated in the circuit to
simplify the design and minimize external compo-
nents. It is nevertheless possible to use the circuit
with an external reference.
The output data can be coded into two different
formats. A Data Ready signal is raised as the data
is valid on the output and can be used for synchro-
nization purposes.
The TSA1001 is available in commercial (0 to
+70°C) and extended (-40 to +85°C) temperature
range, in a small 48 pins TQFP package.
APPLICATIONS
s Portable instrumentation
s Video processing
s Medical imaging and ultrasound
s High resolution fax and scanners
s Digital communications
ORDER CODE
Part Number
Temperature
Range
TSA1001CF
TSA1001CFT
TSA1001IF
TSA1001IFT
EVAL1001/AA
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
Package Conditioning Marking
TQFP48
Tray
TQFP48 Tape & Reel
TQFP48
Tray
TQFP48 Tape & Reel
Evaluation board
SA1001C
SA1001C
SA1001I
SA1001I
PIN CONNECTIONS (top view)
index
c orner
48 47 46 45 44 43 42 41 40 39 38 37
IPOL
VREFP
VREFM
AGND
VIN
1
2
3
4
5
AGND
VINB
AGND
INCM
6
7
8
9
AGND 10
AVCC 11
AVCC 12
TSA1001
36 NC
35 NC
34 NC
33 D0 (LSB)
32 D1
31 D2
30 D3
29 D4
28 D5
27 D6
26 D7
25 D8
13 14 15 16 17 18 19 20 21 22 23 24
PACKAGE
7 × 7 mm TQFP48
October 2000
1/19
TSA1001
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Values
Unit
AVCC Analog Supply voltage 1)
0 to 3.3
V
DVCC Digital Supply voltage 1)
0 to 3.3
V
VCCB Digital buffer Supply voltage 1)
0 to 3.3
V
IDout Digital output current
-100 to 100
mA
Tstg Storage temperature
+150
°C
ESD Electrical Static Discharge:
KV
- HBM
2
- CDM-JEDEC Standard
1.5
1). All voltages values, except differential voltage, are with respect to network ground terminal. The magnitude of input and output voltages
must never exceed -0.3V or VCC+0V
OPERATING CONDITIONS
Symbol
Parameter
AVCC Analog Supply voltage
DVCC Digital Supply voltage
VCCB Digital buffer Supply voltage
VREFP Forced top voltage reference
VREFM Forced bottom reference voltage
Test conditions
Min Typ Max Unit
2.25 2.5
2.7
V
2.25 2.5
2.7
V
2.25 2.5
2.7
V
1.16
- AVCC V
0 0 0.5 V
BLOCK DIAGRAM
VIN
INCM
VINB
CLK
+2.5V
stage
1
stage
2
stage
n
Timing
Sequencer-phase shifting
Digital data correction
GND
VREFP
Reference
circuit
Buffers
GNDA
IPOL
VREFM
DFSB
OEB
DR
DO
TO
D9
OR
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