ADC3051 Datel, Inc., ADC3051 Datasheet

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ADC3051

Manufacturer Part Number
ADC3051
Description
DIP24
Manufacturer
Datel, Inc.
Datasheet
DATEL, Inc., Mansfield, MA 02048-1151 (USA)
FEATURES
GENERAL DESCRIPTION
DATEL's ADC-305 is an 8-bit, 20MHz sampling, CMOS,
subranging (two-pass) A/D converter. It processes signals at
speeds comparable to a full flash converter by using a sub-
ranging conversion technique with multiple comparator blocks,
each containing a sample and hold amplifier.
The ADC-305 features CMOS low power dissipation (60mW
typical) and a wide 18MHz (–1dB) input signal bandwidth.
The ADC-305-1 is packaged in 400 mil 24-pin DIP and the
ADC-305-3 in 300 mil 24-pin SOP.
Other features are CMOS compatible input logic, 3-state TTL
compatible output logic, +5V single power operation, self bias
mode and low cost.
8-bit resolution, 20MHz min. sampling rate
±½LSB max. differential nonlinearity error
18MHz input signal bandwidth
Subranging, S&H enclosed
+5V single power, low 85mW max. dissipation
CMOS compatible logic input
3-State TTL compatible output
®
OUTPUT ENABLE 1
BIT 1 (MSB) 10
BIT 8 (LSB) 3
A/D CLK 12
+DV
DGND 2
BIT 7 4
BIT 6 5
BIT 5 6
BIT 4 7
BIT 3 8
BIT 2 9
S
11
LATCHES
LATCHES
LOWER
UPPER
DATA
DATA
GENERATOR
®
Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356
CLOCK
Figure 1. Functional Block Diagram
ENCODER
ENCODER
ENCODER
LOWER
LOWER
UPPER
(4 BIT)
(4 BIT)
(4 BIT)
Both the ADC-305-1 and the ADC-305-3 have the same pin assignment.
PIN
10
11
12
1
2
3
4
5
6
7
8
9
COMPARATORS
WITH S/H (4 BIT)
COMPARATORS
WITH S/H (4 BIT)
COMPARATORS
WITH S/H (4 BIT)
FUNCTION
OUTPUT ENABLE (OE)
DGND
BIT 8 (LSB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1 (MSB)
+DV
CLOCK INPUT (A/D CLK)
B BLOCK
A BLOCK
UPPER
S
(+5V)
INPUT/OUTPUT CONNECTIONS
CMOS A/D Converters
Email: sales@datel.com
REFERENCE
VOLTAGE
PIN
24
23
22
21
20
19
18
17
16
15
14
13
FUNCTION
DGND
REF. BOTTOM (V
SELF BIAS 1 (V
AGND
AGND
ANALOG INPUT (V
+AV
REFERENCE TOP (V
SELF BIAS 2 (V
+AV
+AV
+DV
8-Bit, 20MHz
ADC-305
S
S
S
S
Internet www.datel.com
(+5V)
(+5V)
(+5V)
(+5V)
19 V
18 +AV
17 V
16 V
15 +AV
14 +AV
13 +DV
24 DGND
23 V
22 V
21 AGND
20 AGND
IN
RT
RTS
RB
RBS
RBS
RTS
RB
S
S
S
S
IN
)
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T
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