adc08d1500dev National Semiconductor Corporation, adc08d1500dev Datasheet - Page 4

• Manufacturer Part Number: adc08d1500dev
• Description: High Performance, Low Power, Dual 8-bit, 1.5 Gsps A/d Converter
• Manufacturer: National Semiconductor Corporation

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Pin Functions
Pin No.
126
18
19
11
10
22
23
31
32
34
35
7
.
Tdiode_P
Tdiode_N
Symbol
CalRun
V
V
CLK+
V
CLK-
V
V
R
V
IN
IN
CMO
IN
IN
EXT
.
BG
Q+
Q−
I+
I−
Equivalent Circuit
4
LVDS Clock input pins for the ADC. The differential clock signal
must be a.c. coupled to these pins. The input signal is sampled on
the falling edge of CLK+. See Section 1.1.2 for a description of
acquiring the input and Section 2.3 for an overview of the clock
inputs.
Analog signal inputs to the ADC. The differential full-scale input
range is 650 mV
the FSR pin is high.
Common Mode Voltage. The voltage output at this pin is required
to be the common mode input voltage at V
coupling is used. This pin should be grounded when a.c. coupling
is used at the analog inputs. This pin is capable of sourcing or
sinking 100μA. See Section 2.2.
Bandgap output voltage capable of 100 μA source/sink.
Calibration Running indication. This pin is at a logic high when
calibration is running.
External bias resistor connection. Nominal value is 3.3k-Ohms
(±0.1%) to ground. See Section 1.1.1.
Temperature Diode Positive (Anode) and Negative (Cathode) for
die temperature measurements. See Section 2.6.2.
P-P
when the FSR pin is low, or 870 mV
Description
IN
+ and V
IN
− when d.c.
P-P
when