LM2917P

更新时间： 2024-02-06 16:10:56

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
7页	96K
描述
FREQUENCY-TO-VOLTAGE CONVERTERS

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数据手册

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LM2917P 数据手册

LM2907, LM2917

FREQUENCY-TO-VOLTAGE CONVERTERS

SLFS011A – MARCH 1986 – REVISED JULY 1993

†

electrical characteristics, V

= 12 V (LM2907), V+ = 12 V through 470 Ω (LM2917), T = 25°C

converter (tachometer) section

LM2907

TYP

±15

LM2917

TYP

±15

PARAMETER

TEST CONDITIONS

UNIT

MIN

MAX

MIN

MAX

Input threshold voltage

V = 250 mV,

f = 1 kHz

±8.5

±40

±8.5

±40

Input hysteresis (see Note 1)

V = 250 mV,

hys

8-pin versions

V = 250 mV,

Input offset voltage

(see Note 1)

14-pin versions

= 250 mV, f = 1 kHz

V = ±50 mV

3.5

Input bias current

0.1

µA

High-level output

voltage

CAP1

V or V = 125 mV

8.3

Low-level output

voltage

V or V = – 125 mV

I ID

2.3

1.2

CAP1 and CPO at 6 V

CAP1 and CPO at 3.8 V

140

0.9

200

240

0.1

Output current

CAP1, CPO

CPO

µA

140

0.9

200

240

0.1

CAP1 open,

CPO at 0 V,

See Note 3

Leakage current

µA

Gain constant

1.1

Nonlinearity (see Note 2)

f = 1 kHz, 5 kHz, or 10 kHz

0.3

±1

0.3

±1

output section

LM2907

TYP

LM2917

TYP

PARAMETER

TEST CONDITIONS

UNIT

MIN

MAX

MIN

MAX

V = 6 V,

See Note 3

Input offset voltage

V = 3.8 V, See Note 3

V = 6 V

500

Input bias current

V = 3.8 V

200

500

Voltage amplification

200

V/mV

Collector output (sink) current

Emitter output (source) current

= 1 V,

= 0

= V

–2

–10

0.1

–10

0.1

= 5 mA

0.5

Collector-emitter saturation voltage

= 20 mA

= 50 mA

CE(sat)

1.5

†

V+ is the symbol for voltage applied to a series resistor to create a current source.

NOTES: 1. Hysteresis is the algebraic difference V

measurement information test circuit.

– V

IT–

; offset voltage is the difference in magnitudes |V

| – |V

IT+

|. See parameter

IT–

IT+

2. Nonlinearity is defined as the deviation of V at CPO for f = 5 kHz from a straight line defined by the V at 1 kHz and V at 10 kHz,

with C1 = 1000 pF, R1 = 68 Ω, C2 = 0.22 µF.

3. CAP1 must be bypassed with a 0.001-µF capacitor to prevent oscillation for these tests.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

1 234 5 6 7

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