a |
23 ns and 65 ns |
|
Low Voltage Comparators |
||
|
|
|
|
|
CMP401/CMP402 |
|
|
|
23 ns or 65 ns Propagation Delay Single-Supply Operation Compatible with 3 V and 5 V Logic Separate Input and Output Sections Low Power
Wide Input Range: –5 V to +3.9 V
Battery-Operated Instrumentation
Line Receivers
Level Translators
Read Channel Detection
GENERAL DESCRIPTION
The CMP401 and CMP402 are 23 ns and 65 ns quad comparators with separate input and output supplies. Separate supplies enable the input stage to be operated from +3 V to as high as ±6 V. The output can be supplied with either 3 V or 5 V as determined by the interface logic or available supplies. Independent input and output supplies combined with fast propagation make the CMP401 and CMP402 excellent choices for interfacing to portable instrumentation.
The CMP401 and CMP402 are specified over the extended industrial (–40°C to +125°C) temperature range. Both are available in narrow SO-16 surface-mount packages and 16-lead TSSOP.
VANALOG+ = |
VDIGITAL = |
0V OR 5V |
3V OR 5V |
IN+
OUTPUT
IN–
VANALOG– =
+0V OR –5V
NOTE: (VANALOG+ ) – (VANALOG–) 3V
2v
50mV
100
90
10
0%
10nS
CMP401: 20 MHz Noninverting Switching, VIN = ±100 mV
REV. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 |
www.analog.com |
Fax: 781/326-8703 |
© Analog Devices, Inc., 2002 |
CMP401/CMP402–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS (@ V+ANA = V+DIG = 5.0 V, VCM = 0.1 V, –40 C ≤ TA ≤ +125 C, unless otherwise noted.)
Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
|
|
|
|
|
|
|
INPUT CHARACTERISTICS |
|
TA = 25°C |
|
|
|
|
Offset Voltage1 |
VOS |
|
|
3 |
mV |
|
|
VOS |
|
|
|
4 |
mV |
Hysteresis |
|
|
|
2 |
|
mV |
Input Bias Current |
IB |
TA = 25°C |
|
|
3 |
µA |
|
IB |
|
|
|
4 |
µA |
Input Offset Current |
IOS |
|
|
|
±3 |
µA |
Input Common-Mode Voltage Range |
VCM |
0.1 V ≤ VCM ≤ 3.9 V |
0 |
|
4.0 |
V |
Common-Mode Rejection |
CMRR |
60 |
|
|
dB |
|
Large-Signal Voltage Gain |
AVO |
RL = 10 kΩ |
|
10 |
|
V/mV |
Offset Voltage Drift |
∆VOS/∆T |
|
|
1 |
|
µV/°C |
OUTPUT CHARACTERISTICS |
|
|
|
|
|
|
Output High Voltage |
VOH |
IOH = –3.2 mA |
4.6 |
|
|
V |
Output Low Voltage |
VOL |
IOL = 3.2 mA |
|
|
0.2 |
V |
POWER SUPPLY |
|
|
|
|
|
|
Power Supply Rejection Ratio |
PSRR |
V+ANA and V+DIG 2.7 V to 6 V |
60 |
|
|
dB |
Analog Supply Current – CMP401 |
IANA |
TA = 25°C |
|
|
6.5 |
mA |
Digital Supply Current – CMP401 |
IDIG |
VO = 0 V, RL = ∞, TA = 25°C |
|
|
2.0 |
mA |
Analog Supply Current – CMP401 |
IANA |
VO = 0 V, RL = ∞ |
|
|
8.0 |
mA |
Digital Supply Current – CMP401 |
IDIG |
|
|
2.25 |
mA |
|
Analog Supply Current – CMP402 |
IANA |
TA = 25°C |
|
|
1.4 |
mA |
Digital Supply Current – CMP402 |
IDIG |
VO = 0 V, RL = ∞, TA = 25°C |
|
|
2.0 |
mA |
Analog Supply Current – CMP402 |
IANA |
VO = 0 V, RL = ∞ |
|
|
1.75 |
mA |
Digital Supply Current – CMP402 |
IDIG |
|
|
2.25 |
mA |
|
DYNAMIC PERFORMANCE |
|
|
|
|
|
|
Propagation Delay – CMP401 |
tP |
100 mV Step with 20 mV OD |
|
|
|
|
|
tP |
TA = 25°C |
|
17 |
23 |
ns |
|
100 mV Step with 5 mV OD |
|
|
|
|
|
|
tP |
TA = 25°C |
|
33 |
|
ns |
|
100 mV Step with 20 mV OD |
|
|
30 |
ns |
|
Propagation Delay – CMP402 |
tP |
100 mV Step with 20 mV OD |
|
|
|
|
|
|
TA = 25°C |
|
54 |
65 |
ns |
|
tP |
100 mV Step with 5 mV OD |
|
|
|
|
|
|
TA = 25°C |
|
60 |
|
ns |
|
tP |
100 mV Step with 20 mV OD |
|
|
75 |
ns |
ELECTRICAL SPECIFICATIONS (@ VANA = VDIG = 3.0 V, VCM = 0.1 V, TA = 25 C, unless otherwise noted.)
Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
|
|
|
|
|
|
|
INPUT CHARACTERISTICS |
|
|
|
|
|
|
Offset Voltage1 |
VOS |
|
|
|
4.5 |
mV |
Input Common-Mode Voltage Range |
VCM |
|
0 |
|
2.0 |
V |
Input Differential Voltage Range |
VDIFF |
0.1 V ≤ VCM ≤ 1.9 V |
±2.0 |
|
|
V |
Common-Mode Rejection |
CMRR |
60 |
|
|
dB |
|
|
|
|
|
|
|
|
OUTPUT CHARACTERISTICS |
|
|
|
|
|
|
Output High Voltage |
VOH |
IOH = –3.2 mA |
2.6 |
|
|
V |
Output Low Voltage |
VOL |
IOL = 3.2 mA |
|
|
0.25 |
V |
POWER SUPPLY |
|
|
|
|
|
|
Power Supply Rejection Ratio |
PSRR |
V+ANA and V+DIG 2.7 V to 6 V |
60 |
|
|
dB |
Analog Supply Current – CMP401 |
IANA |
VO = 0 V, RL = ∞ |
|
|
6 |
mA |
Digital Supply Current – CMP401 |
IDIG |
|
|
1 |
mA |
|
Analog Supply Current – CMP402 |
IANA |
VO = 0 V, RL = ∞ |
|
|
1.2 |
mA |
Digital Supply Current – CMP402 |
IDIG |
|
|
1 |
mA |
|
DYNAMIC PERFORMANCE |
|
|
|
|
|
|
Propagation Delay – CMP401 |
tP |
100 mV Step with 20 mV OD |
|
32 |
|
ns |
Propagation Delay – CMP402 |
tP |
100 mV Step with 20 mV OD |
|
70 |
|
ns |
–2– |
REV. A |
CMP401/CMP402
ELECTRICAL SPECIFICATIONS (@ V±ANA = ±5 V, VDIG = 5.0 V, TA = 25 C, unless otherwise noted.)
Parameter |
Symbol |
Conditions |
Min |
Typ |
Max |
Unit |
|
|
|
|
|
|
|
INPUT CHARACTERISTICS |
|
|
|
|
|
|
Offset Voltage1 |
VOS |
VCM = 0 V |
|
|
3 |
mV |
Input Common-Mode Voltage Range |
VCM |
|
–5.0 |
|
+4.0 |
V |
Input Differential Voltage Range |
VDIFF |
–4.9 V ≤ VCM ≤ 3.9 V |
± 8.0 |
|
|
V |
Common-Mode Rejection |
CMRR |
60 |
|
|
dB |
|
Offset Voltage Drift |
∆VOS/∆T |
|
|
1 |
5 |
V/°C |
POWER SUPPLY |
|
V± ANA ± 3 V to ± 6 V |
|
|
|
|
Power Supply Rejection Ratio |
PSRR |
60 |
|
|
dB |
|
Analog Supply Current – CMP401 |
IANA |
VO = 0 V, RL = ∞ |
|
|
6.5 |
mA |
Digital Supply Current – CMP401 |
IDIG |
|
|
2.0 |
mA |
|
Analog Supply Current – CMP402 |
IANA |
VO = 0 V, RL = ∞ |
|
|
2.0 |
mA |
Digital Supply Current – CMP402 |
IDIG |
|
|
2.0 |
mA |
|
DYNAMIC PERFORMANCE |
|
|
|
|
|
|
Propagation Delay – CMP401 |
tP |
100 mV Step with 20 mV OD |
|
|
23 |
ns |
Propagation Delay – CMP402 |
tP |
100 mV Step with 20 mV OD |
|
|
65 |
ns |
NOTES
1Offset voltage is defined as (VOS+ + VOS–)/2. Specifications subject to change without notice.
REV. A |
–3– |