参数资料
型号: THS1060IPHP
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 1-CH 10-BIT DELTA-SIGMA ADC, PARALLEL ACCESS, PQFP48
封装: POWER, PLASTIC, TQFP-48
文件页数: 15/21页
文件大小: 356K
代理商: THS1060IPHP
THS1060
10-BIT 60 MSPS IF SAMPLING COMMUNICATIONS
ANALOG-TO-DIGITAL CONVERTER
SLAS212A – MARCH 2000 – REVISED MARCH 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
AVDD
2, 5, 12
43, 45, 47
I
Analog power supply
AVSS
1, 11, 13,
41, 42, 44,
46
I
Analog ground return for internal analog circuitry
CLK+
15
I
Clock input
CLK–
16
I
Complementary clock input
D9–D0
25–34
O
Digital data output bits; LSB= D0, MSB = D9 (2s complement output format)
DRVDD
24, 37, 38
I
Digital output driver supply
DRVSS
23, 39, 40
I
Digital output driver ground return
DVDD
17, 20, 22
I
Positive digital supply
DVSS
18, 19, 21
I
Digital ground return
VBG
10
O
Band gap reference. Bypass to ground with a 1-
F and a 0.01-F chip capacitor.
VCM
48
O
Common mode voltage output. Bypass to ground with a 0.1-
F and a 0.01-F chip device capacitor.
VIN+
3
I
Analog signal input
VIN–
4
I
Complementary analog signal input
VREFIN –
7
I
External reference input low
VREFIN+
8
I
External reference input high
VREFOUT+
9
O
Internal reference output. Compensate with a 1-
F and a 0.01-F chip capacitor.
VREFOUT –
6
O
Internal reference output. Compensate with a 1-
F and a 0.01-F chip capacitor.
detailed description
The THS1060 uses a differential pipeline architecture and assures no missing codes over the full operating
temperature range. The device uses a 1 bit per stage architecture in order to achieve the highest possible
bandwidth. The differential analog inputs are terminated with a 900
resistor. The inputs are then fed to a unity
gain buffer followed by the S/H (sample and hold) stage. This S/H stage is a switched capacitor op-amp based
circuit, see Figure 3. The pipeline is a typical 1 bit per stage pipeline as shown in the functional block diagram.
The digital output of the 10 stages and the last 1 bit flash are sent to a digital correction logic block which then
outputs the final 10 bits.
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