Ordering number: EN3086B
CMOS LSI
LC89066, 89066M
6-Bit Video A/D Converters
Overview
The LC89066 and LC89066M are high-speed analog-to-digital
converters. They are of flash type, operate from single 5V
supply, and feature a 15 Mega-samples per second conversion
rate and low power dissipation.
Features
.
Conversion rate: 15 MSPS
.
Low power dissipation: 120 mW
.
Linearity error within ±0.8 LSB (max)
.
TTL-compatible inputs
.
LC89066: DIP-16
LC89066M: MFP-20
Package Dimensions
unit : mm
3006B-DIP16
[LC89066]
SANYO : DIP16
unit : mm
3036B-MFP20
[LC89066M]
Specifications
Absolute Maximum Ratings atTa=25°C, VSS=0V
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Input voltage V
Operating temperature Topr
Storage temperature Tstg –40 to +125
max –0.3 to +7.0 V
DD
IN
LC89066 –30 to +75
LC89066M –30 to +65
–0.3 to VDD+0.3 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13097HA(II)/8099TA,TS(US) No.3086-1/4
SANYO : MFP20
C
°
C
°
C
°
LC89066, 89066M
Recommended Operating Conditions
Parameter Symbol Conditions min typ max Unit
Supply voltage V
Reference voltage (high) V
Reference voltage (low) V
Input high-level voltage V
Input low-level voltage V
Analog input voltage V
Clock high period T
Clock low period T
DD
RH
RL
IH
IL
ANI
WH
WL
Electrical Characteristics atTa=25°C, VDD= 5.0 V, VRH= 5.0 V, VRL= 3.0 V
Parameter Symbol Conditions min typ max Unit
Resolution RES 6 bit
Maximum sampling frequency Fs max 15 MSPS
Power dissipation Pd Fs = 15 MSPS 120 200 mW
Linearity error I.L. DC accuracy ±0.8 LSB
Differential linearity error D.L. DC accuracy ±0.5 LSB
String resistance Rst 400 600 800 Ω
Analog input capacitance C
Analog input resistance R
Output delay time TdL 20 45 ns
AIN
AIN
4.75 5.0 5.25 V
V
0V
2.2 VDD+0.3 V
–0.3 +0.8 V
V
RL
30 ns
30 ns
10 MΩ
DD
V
RH
50 pF
V
V
Equivalent Circuit Block Diagram
Timing Chart
Analog input
Clock input
Digital signal output
No.3086-2/4
LC89066, 89066M
Pin Functions
.
LC89066
Pin No. Symbol Description
1 D6 Digital output data (least significant bit)
2D5
.
LC89066M
3D4
4D3
5D2
6 D1 Digital output data (most significant bit)
7 CLK Clock input
8 GND Ground (analog)
9V
10 V
11 V
12 ANI Analog voltage input
13 V
14 V
15 V
16 GND Ground (digital)
DD
DD
RH
RL
DD
DD
Digital output data
Power supply (analog)
Reference voltage input (high)
Reference voltage input (low)
Power supply (digital)
Pin No. Symbol Description
1 D6 Digital output data (least significant bit)
2 D5 Digital output data
3 N.C. No connection
4D4
Digital output data5D3
6D2
7 D1 Digital output data (most significant bit)
8 N.C. No connection
9 CLK Clock input
10 GND Ground (analog)
11 V
12 V
13 N.C. No connection
14 V
15 ANI Analog voltage input
16 V
17 V
18 N.C. No connection
19 V
20 GND Ground (digital)
DD
DD
RH
RL
DD
DD
Power supply (analog)
Reference voltage input (high)
Reference voltage input (low)
Power supply (digital)
Power supply (digital)
Functional Description
Signal on the analog signal input pin ANI is input into the comparators on the rising edge of the CLK input signal. This signal is
compared with the voltage divided by resistors and digitized. This digitized signal is coded by the encoder logic and output on the
next rising edge of the CLK input signal. The conversion range depends on the converter high and low reference voltage V
V
. When zero transient voltage is set to 3.000 V by VRLvoltage and full scale transient voltage to 4.984 V by VRHvoltage, the
RL
output data is linearly related to the input voltage as shown in the table below.
RH
and
Input voltage (V) Output data
0 to 3.000 000000
1 3.000 to 3.032 000001
2 3.032 to 3.064 000010
3 3.064 to 3.096. 000011
.
.
.
.
61 4.920 to 4.952 111101
62 4.952 to 4.984 111110
63 4.984 to 111111
.
.
.
.
.
.
.
.
No.3086-3/4
LC89066, 89066M
Sample Application Circuits
The following diagrams show typical application circuits for the LC89066 and LC89066M. The high reference voltage is
connected to the positive supply line, and the low reference voltage generated by a voltage divider and emitter follower. The
analog signal is input with a low impedance.
Power supply
Digital
signal
output
Oscillator
Power supply
Analog
input
Digital
signal
Analog
input
output
Oscillator
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of January, 1997. Specifications and information herein are subject to change without notice.
No.3086-4/4
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