The LM732xx devices are rail-to-rail input and output amplifiers with wide operating voltages and high-output currents. The LM732xx family is efficient, achieving 18-V/µs slew rate and 20-MHz unity gain bandwidth while requiring only 1 mA of supply current per op amp. The LM732xx device performance is fully specified for operation at 2.7 V, ±5 V and ±15 V.
The LM732xx devices are designed to drive unlimited capacitive loads without oscillations. All LM7321x and LM7322x parts are tested at −40°C, 125°C, and 25°C, with modern automatic test equipment. High performance from −40°C to 125°C, detailed specifications, and extensive testing makes them suitable for industrial, automotive, and communications applications.
Greater than rail-to-rail input common-mode voltage range with 50 dB of common-mode rejection across this wide voltage range, allows both high-side and low-side sensing. Most device parameters are insensitive to power supply voltage, and this makes the parts easier to use where supply voltage may vary, such as automotive electrical systems and battery powered equipment. These amplifiers have true rail-to-rail output and can supply a respectable amount of current (15 mA) with minimal head- room from either rail (300 mV) at low distortion (0.05% THD+Noise).
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM7321 LM7322 |
SOIC (8) | 4.90 mm × 3.91 mm |
SOT (5) | 2.90 mm × 1.60 mm | |
LM7322 | VSSOP (8) | 3.00 mm × 3.00 mm |
Changes from D Revision (March 2013) to E Revision
Changes from C Revision (May 2008) to D Revision
There are several package options for each part. Standard SOIC versions of both parts make upgrading existing designs easy. LM7322x are offered in a space-saving 8-Pin VSSOP package. The LM7321x are offered in small SOT-23 package, which makes it easy to place this part close to sensors for better circuit performance.
PIN | I/O | DESCRIPTION | |||
---|---|---|---|---|---|
NAME | SOT-23 NO. | SOIC NO. | VSSOP, SOIC NO. | ||
OUT | 1 | 6 | — | O | Output |
OUT A | — | — | 1 | O | Output for Amplifier A |
OUT B | — | — | 7 | O | Output for Amplifier B |
V+ | 5 | 7 | 7 | P | Positive Supply |
V– | 2 | 4 | 4 | P | Negative Supply |
+IN | 3 | 3 | — | I | Noninverting Input |
–IN | 4 | 2 | — | I | Inverting Input |
+IN A | — | — | 3 | I | Noninverting Input for Amplifier A |
–IN A | — | — | 2 | I | Inverting Input for Amplifier A |
+IN B | — | — | 5 | I | Noninverting Input for Amplifier B |
–IN B | — | — | 6 | I | Inverting Input for Amplifier B |
N/C | — | 1, 5, 8 | — | — | No connection |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VIN Differential | ±10 | V | ||
Output Short Circuit Current | See (2) | |||
Supply Voltage (VS = V+ - V−) | 35 | V | ||
Voltage at Input/Output pins | V+ + 0.8 | V− − 0.8 | V | |
Junction Temperature(3) | 150 | °C | ||
Soldering Information: | Infrared or Convection (20 sec.) | 235 | °C | |
Wave Soldering (10 sec.) | 260 | °C | ||
Storage Temperature | −65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge(3) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1000 | |||
Machine Model | 200 |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Supply Voltage (VS = V+ - V−) | 2.5 | 32 | V | |
Temperature Range(1) | −40 | 125 | °C |
THERMAL METRIC(2) | LM7321 | UNIT | |||
---|---|---|---|---|---|
D (SOIC) | DBV (SOT) | DGK (VSSOP) | |||
8 PINS | 5 PINS | 8 PINS | |||
RθJA(1) | Junction-to-ambient thermal resistance | 165 | 325 | 235 | °C/W |
PARAMETER | TEST CONDITION | MIN(3) | TYP(2) | MAX(3) | UNIT | ||
---|---|---|---|---|---|---|---|
VOS | Input Offset Voltage | VCM = 0.5 V and VCM = 2.2 V | −5 | ±0.7 | +5 | mV | |
TA = –40°C to +125°C | −6 | +6 | |||||
TC VOS | Input Offset Voltage Temperature Drift | VCM = 0.5 V and VCM = 2.2 V(4) | ±2 | µV/C | |||
IB | Input Bias Current | VCM = 0.5 V(5) | −2 | −1.2 | µA | ||
TA = –40°C to +125°C | −2.5 | ||||||
VCM = 2.2 V(5) | 0.45 | 1 | |||||
TA = –40°C to +125°C | 1.5 | ||||||
IOS | Input Offset Current | VCM = 0.5 V and VCM = 2.2 V | 20 | 200 | nA | ||
TA = –40°C to +125°C | 300 | ||||||
CMRR | Common-Mode Rejection Ratio | 0 V ≤ VCM ≤ 1 V | 70 | 100 | dB | ||
TA = –40°C to +125°C | 60 | ||||||
0 V ≤ VCM ≤ 2.7 V | 55 | 70 | |||||
TA = –40°C to +125°C | 50 | ||||||
PSRR | Power Supply Rejection Ratio | 2.7 V ≤ VS ≤ 30 V | 78 | 104 | dB | ||
TA = –40°C to +125°C | 74 | ||||||
CMVR | Common-Mode Voltage Range (Min) | CMRR > 50 dB | −0.3 | −0.1 | V | ||
TA = –40°C to +125°C | 0 | ||||||
Common-Mode Voltage Range (Max) | CMRR > 50 dB | 2.8 | 3 | ||||
TA = –40°C to +125°C | 2.7 | ||||||
AVOL | Open-Loop Voltage Gain | 0.5 V ≤ VO ≤ 2.2 V RL = 10 kΩ to 1.35 V |
65 | 72 | dB | ||
TA = –40°C to +125°C | 62 | ||||||
0.5 V ≤ VO ≤ 2.2 V RL = 2 kΩ to 1.35V |
59 | 66 | |||||
TA = –40°C to +125°C | 55 | ||||||
VOUT | Output Voltage Swing High |
RL = 10 kΩ to 1.35 V VID = 100 mV |
50 | 150 | mV from either rail | ||
TA = –40°C to +125°C | 160 | ||||||
RL = 2 kΩ to 1.35 V VID = 100 mV |
100 | 250 | |||||
TA = –40°C to +125°C | 280 | ||||||
Output Voltage Swing Low |
RL = 10 kΩ to 1.35 V VID = −100 mV |
20 | 120 | ||||
TA = –40°C to +125°C | 150 | ||||||
RL = 2 kΩ to 1.35 V VID = −100 mV |
40 | 120 | |||||
TA = –40°C to +125°C | 150 | ||||||
IOUT | Output Current | Sourcing VID = 200 mV, VOUT = 0 V(7) |
30 | 48 | mA | ||
TA = –40°C to +125°C | 20 | ||||||
Sinking VID = −200 mV, VOUT = 2.7 V(7) |
40 | 65 | |||||
TA = –40°C to +125°C | 30 | ||||||
IS | Supply Current | LM7321 | 0.95 | 1.3 | mA | ||
TA = –40°C to +125°C | 1.9 | ||||||
LM7322 | 2 | 2.5 | |||||
TA = –40°C to +125°C | 3.8 | ||||||
SR | Slew Rate(6) | AV = +1, VI = 2-V Step | 8.5 | V/µs | |||
fu | Unity Gain Frequency | RL = 2 kΩ, CL = 20 pF | 7.5 | MHz | |||
GBW | Gain Bandwidth | f = 50 kHz | 16 | MHz | |||
en | Input Referred Voltage Noise Density | f = 2 kHz | 11.9 | nV/√H | |||
in | Input Referred Current Noise Density | f = 2 kHz | 0.5 | pA/√H | |||
THD+N | Total Harmonic Distortion + Noise | V+ = 1.9 V, V− = −0.8 V f = 1 kHz, RL = 100 kΩ, AV = +2 VOUT = 210 mVPP |
−77 | dB | |||
CT Rej. | Crosstalk Rejection | f = 100 kHz, Driver RL = 10 kΩ | 60 | dB |
PARAMETER | TEST CONDITION | MIN(3) | TYP(2) | MAX(3) | UNIT | |||
---|---|---|---|---|---|---|---|---|
VOS | Input Offset Voltage | VCM = −4.5 V and VCM = 4.5 V | −5 | ±0.7 | +5 | mV | ||
TA = –40°C to +125°C | −6 | +6 | ||||||
TC VOS | Input Offset Voltage Temperature Drift | VCM = −4.5 V and VCM = 4.5 V(4) | ±2 | µV/°C | ||||
IB | Input Bias Current | VCM = −4.5 V(5) | −2.0 | −1.2 | µA | |||
TA = –40°C to +125°C | −2.5 | |||||||
VCM = 4.5 V(5) | 0.45 | 1 | ||||||
TA = –40°C to +125°C | 1.5 | |||||||
IOS | Input Offset Current | VCM = −4.5 V and VCM = 4.5 V | 20 | 200 | nA | |||
TA = –40°C to +125°C | 300 | |||||||
CMRR | Common Mode Rejection Ratio | −5 V ≤ VCM ≤ 3 V | 80 | 100 | dB | |||
TA = –40°C to +125°C | 70 | |||||||
−5 V ≤ VCM ≤ 5 V | 65 | 80 | ||||||
TA = –40°C to +125°C | 62 | |||||||
PSRR | Power Supply Rejection Ratio | 2.7 V ≤ VS ≤ 30 V, VCM = −4.5 V |
78 | 104 | dB | |||
TA = –40°C to +125°C | 74 | |||||||
CMVR | Common-Mode Voltage Range (Min) | CMRR > 50 dB | −5.3 | −5.1 | V | |||
TA = –40°C to +125°C | −5 | |||||||
Common-Mode Voltage Range (Max) | CMRR > 50 dB | 5.1 | 5.3 | |||||
TA = –40°C to +125°C | 5 | |||||||
AVOL | Open-Loop Voltage Gain | −4 V ≤ VO ≤ 4 V RL = 10 kΩ to 0 V |
74 | 80 | dB | |||
TA = –40°C to +125°C | 70 | |||||||
−4 V ≤ VO ≤ 4 V RL = 2 kΩ to 0 V |
68 | 74 | ||||||
TA = –40°C to +125°C | 65 | |||||||
VOUT | Output Voltage Swing High |
RL = 10 kΩ to 0 V VID = 100 mV |
100 | 250 | mV from either rail | |||
TA = –40°C to +125°C | 280 | |||||||
RL = 2 kΩ to 0 V VID = 100 mV |
160 | 350 | ||||||
TA = –40°C to +125°C | 450 | |||||||
Output Voltage Swing Low |
RL = 10 kΩ to 0 V VID = −100 mV |
35 | 200 | |||||
TA = –40°C to +125°C | 250 | |||||||
RL = 2 kΩ to 0 V VID = −100 mV |
80 | 200 | ||||||
TA = –40°C to +125°C | 250 | |||||||
IOUT | Output Current | Sourcing VID = 200 mV, VOUT = −5 V(7) |
35 | 70 | mA | |||
TA = –40°C to +125°C | 20 | |||||||
Sinking VID = −200 mV, VOUT = 5 V(7) |
50 | 85 | ||||||
TA = –40°C to +125°C | 30 | |||||||
IS | Supply Current | VCM = −4.5 V | LM7321 | 1.0 | 1.3 | mA | ||
TA = –40°C to +125°C | 2 | |||||||
LM7322 | 2.3 | 2.8 | ||||||
TA = –40°C to +125°C | 3.8 | |||||||
SR | Slew Rate(6) | AV = +1, VI = 8-V Step | 12.3 | V/µs | ||||
fu | Unity Gain Frequency | RL = 2 kΩ, CL = 20 pF | 9 | MHz | ||||
GBW | Gain Bandwidth | f = 50 kHz | 16 | MHz | ||||
en | Input Referred Voltage Noise Density | f = 2 kHz | 14.3 | nV/√H | ||||
in | Input Referred Current Noise Density | f = 2 kHz | 1.35 | pA/√H | ||||
THD+N | Total Harmonic Distortion + Noise | f = 1 kHz, RL = 100 kΩ, AV = +2 VOUT = 8 VPP |
−79 | dB | ||||
CT Rej. | Crosstalk Rejection | f = 100 kHz, Driver RL = 10 kΩ | 60 | dB |
PARAMETER | TEST CONDITION | MIN(3) | TYP(2) | MAX(3) | UNIT | |||
---|---|---|---|---|---|---|---|---|
VOS | Input Offset Voltage | VCM = −14.5 V and VCM = 14.5 V | −6 | ±0.7 | +6 | mV | ||
–40°C to +125°C | −8 | +8 | ||||||
TC VOS | Input Offset Voltage Temperature Drift | VCM = −14.5 V and VCM = 14.5 V(4) | ±2 | µV/°C | ||||
IB | Input Bias Current | VCM = −14.5 V(5) | −2 | −1.1 | µA | |||
–40°C to +125°C | −2.5 | |||||||
VCM = 14.5 V(5) | 0.45 | 1 | ||||||
–40°C to +125°C | 1.5 | |||||||
IOS | Input Offset Current | VCM = −14.5 V and VCM = 14.5 V | 30 | 300 | nA | |||
–40°C to +125°C | 500 | |||||||
CMRR | Common-Mode Rejection Ratio | −15 V ≤ VCM ≤ 12 V | 80 | 100 | dB | |||
–40°C to +125°C | 75 | |||||||
−15 V ≤ VCM ≤ 15 V | 72 | 80 | ||||||
–40°C to +125°C | 70 | |||||||
PSRR | Power Supply Rejection Ratio | 2.7 V ≤ VS ≤ 30 V, VCM = −14.5 V | 78 | 100 | dB | |||
–40°C to +125°C | 74 | |||||||
CMVR | Common-Mode Voltage Range (Min) | CMRR > 50 dB | −15.3 | −15.1 | V | |||
–40°C to +125°C | −15 | |||||||
Common-Mode Voltage Range (Max) | CMRR > 50 dB | 15.1 | 15.3 | |||||
–40°C to +125°C | 15 | |||||||
AVOL | Open-Loop Voltage Gain | −13 V ≤ VO ≤ 13 V RL = 10 kΩ to 0 V |
75 | 85 | dB | |||
–40°C to +125°C | 70 | |||||||
−13 V ≤ VO ≤ 13 V RL = 2 kΩ to 0 V |
70 | 78 | ||||||
–40°C to +125°C | 65 | |||||||
VOUT | Output Voltage Swing High |
RL = 10 kΩ to 0 V VID = 100 mV |
150 | 300 | mV from either rail | |||
–40°C to +125°C | 350 | |||||||
RL = 2 kΩ to 0 V VID = 100 mV |
250 | 550 | ||||||
–40°C to +125°C | 650 | |||||||
Output Voltage Swing Low |
RL = 10 kΩ to 0 V VID = −100 mV |
60 | 200 | |||||
–40°C to +125°C | 250 | |||||||
RL = 2 kΩ to 0 V VID = −100 mV |
130 | 300 | ||||||
–40°C to +125°C | 400 | |||||||
IOUT | Output Current | Sourcing VID = 200 mV, VOUT = −15 V(7) |
40 | 65 | mA | |||
Sinking VID = −200 mV, VOUT = 15 V(7) |
60 | 100 | ||||||
IS | Supply Current | VCM = −14.5 V | LM7321 | 1.1 | 1.7 | mA | ||
–40°C to +125°C | 2.4 | |||||||
LM7322 | 2.5 | 4 | ||||||
–40°C to +125°C | 5.6 | |||||||
SR | Slew Rate(6) | AV = +1, VI = 20-V Step | 18 | V/µs | ||||
fu | Unity Gain Frequency | RL = 2 kΩ, CL = 20 pF | 11.3 | MHz | ||||
GBW | Gain Bandwidth | f = 50 kHz | 20 | MHz | ||||
en | Input Referred Voltage Noise Density | f = 2 kHz | 15 | nV/√H | ||||
in | Input Referred Current Noise Density | f = 2 kHz | 1.3 | pA/√H | ||||
THD+N | Total Harmonic Distortion +Noise | f = 1 kHz, RL 100 kΩ, AV = +2, VOUT = 23 VPP |
−86 | dB | ||||
CT Rej. | Crosstalk Rejection | f = 100 kHz, Driver RL = 10 kΩ | 60 | dB |